CN111405223A - Video processing method, device and equipment - Google Patents

Abstract

The present invention provides a video processing method, device and equipment, and relates to the technical field of information processing. The method includes: encrypting the received target video according to a first key; storing the encrypted target video, and generating a corresponding access address; and generating a corresponding access address according to the access address and attribute information of the target video Ledger information; store the account book information in the video surveillance information blockchain. The solution of the present invention solves the problem that the traditional video monitoring system lacks credible evidence for video storage.

Description

A video processing method, device and equipment

technical field

The present invention relates to the technical field of information processing, and in particular, to a video processing method, device and equipment.

Background technique

At present, video surveillance plays an increasingly important role in social life, public safety, and family communication. With the popularity of IP cameras (network cameras), the cost of video surveillance equipment purchase and networking continues to drop, and the industry maturity and technical standards are getting higher and higher. In terms of business, more and more customers use video surveillance systems to achieve safety engineering, transparency engineering, and reassurance engineering for the safety of themselves and their service customers, such as: kindergartens, schools, large shopping malls, supermarkets, parks, squares, roads, canteens , hotels, and offices are almost fully covered by video surveillance.

In the traditional video surveillance system structure, the front end is mainly composed of IP cameras and network equipment, and is connected to the back end through a local area network. The back end includes a video processing server, a control server, a storage device, and a control terminal. In some cases, the monitoring system is also connected to an external network through a wide area network, providing monitoring terminals to superior departments and remote monitoring terminals to authorized users using the Internet. Some industries, enterprises, and places have also set up video content archiving systems to transfer data to a centralized archiving system.

However, traditional video surveillance systems lack effective unified archiving for video storage, which reduces the convenience of video access.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a video processing method, device and equipment, so as to solve the problem that the traditional video monitoring system lacks effective unified filing for video storage, and can more conveniently complete targeted video access.

In order to achieve the above object, an embodiment of the present invention provides a video processing method, including:

Encrypt the received target video according to the first key;

The encrypted target video is externally stored, and a corresponding access address is generated;

Generate ledger information according to the access address and the attribute information of the target video;

The ledger information is stored in the video surveillance information blockchain.

Wherein, encrypting the received target video according to the first key, including:

Divide the received video stream data collected by cameras belonging to the same node to obtain the target video;

The target video is encrypted with the first key.

Wherein, the encrypted target video is externally stored, including:

The encrypted target video is stored in an external storage object corresponding to the target video.

Wherein, the ledger information includes at least one of the following:

video identification;

Time information of the video;

video surveillance location;

the hash of the video;

The user and confidentiality level of the video;

the period for which the video will be accessible;

The access address of the video.

Wherein, after the ledger information is stored in the video surveillance information blockchain, it further includes:

sign the ledger information;

Broadcast the signed ledger information to the video surveillance blockchain network.

Wherein, the method also includes:

Extract the ledger information from the broadcast information, and check whether the ledger information has been recorded in the locally stored video blockchain ledger;

If recorded, ignore the broadcast information;

If not recorded, the ledger information is verified, and after the verification is passed, the ledger is stored in the local video blockchain ledger, and the ledger information is continued to be broadcast.

Wherein, if it is not recorded, the ledger information is verified, including:

Check the legality of the source of the ledger information, and interact with the external storage to determine that the target video corresponding to the ledger information has been correctly stored and the fingerprint is correct.

Wherein, after the ledger information is stored in the video surveillance information blockchain, it further includes:

After the access user passes the authorization verification, the access initiation information and digital watermark of this access are generated;

Find the corresponding access video according to the access request of the access user;

Feedback based on search results.

Wherein, according to the access request of the access user, the corresponding access video is searched, including:

extracting ledger information from the video surveillance information blockchain;

Matching the ledger information with the retrieval information of this visit;

If the match is successful, the access video is extracted according to the access address of the ledger information.

Among them, feedback based on the search results, including:

If the account book information is not extracted, the feedback information indicates that the video is not stored;

If the account book information is extracted, but the access video is not extracted according to the access address of the account book information, the feedback information indicates that the stored video is invalid;

If the access video is extracted, according to whether the access video can be decrypted by the first key, if the decryption fails, the feedback information indicates that the access video is not allowed to be accessed; After the digital watermark is superimposed on the decrypted access video, it is output to a playback device.

Among them, after feedback according to the search results, it also includes:

Generate access information for this visit;

storing the access information in the video surveillance information blockchain;

sign the access information;

Broadcast the signed access information to the video surveillance blockchain network.

Wherein, the access information includes at least one of the following:

the access initiation information;

the digital watermark encrypted using the second key;

access time information for the video;

Access the ledger information ID of the video.

Wherein, the method also includes:

If the feedback information of the accessed video indicates that the stored video is invalid, the historical access information of the current video is extracted.

In order to achieve the above object, an embodiment of the present invention provides a video processing apparatus, including:

an encryption module for encrypting the received target video according to the first key;

a first processing module, for externally storing the encrypted target video, and generating a corresponding access address;

A ledger generation module, configured to generate ledger information according to the access address and the attribute information of the target video;

The second processing module is used for storing the ledger information in the video surveillance information block chain.

Wherein, the encryption module includes:

The preprocessing submodule is used to divide the received video stream data collected by the cameras belonging to the same node to obtain the target video;

An encryption submodule, configured to encrypt the target video by using the first key.

Wherein, the first processing module is also used for:

The encrypted target video is stored in an external storage object corresponding to the target video.

Wherein, the ledger information includes at least one of the following:

video identification;

Time information of the video;

video surveillance location;

the hash of the video;

The user and confidentiality level of the video;

the period for which the video will be accessible;

The access address of the video.

Wherein, the device also includes:

a ledger signature module, used to sign the ledger information;

The ledger broadcast module is used to broadcast the signed ledger information to the video surveillance blockchain network.

Wherein, the device also includes:

The ledger processing module is used to extract the ledger information from the broadcast information, and check whether the ledger information has been recorded in the locally stored video blockchain ledger; if it has been recorded, ignore the broadcast information; The ledger information is verified, and after the verification is passed, the ledger is stored in the local video blockchain ledger, and the ledger information is continued to be broadcast.

Wherein, the ledger processing module is also used for:

Check the legality of the source of the ledger information, and interact with the external storage to determine that the target video corresponding to the ledger information has been correctly stored and the fingerprint is correct.

Wherein, the device also includes:

The third processing module is used to generate the access initiation information and digital watermark of this access after the access user passes the authorization verification;

a search module, used to search for a corresponding access video according to the access request of the access user;

The fourth processing module is used for feedback according to the search result.

Wherein, the search module includes:

A ledger extraction sub-module, used for extracting ledger information from the video surveillance information blockchain;

a matching submodule, used to match the ledger information with the retrieval information of this visit;

The video extraction sub-module is used to extract the access video according to the access address of the ledger information if the match is successful.

Wherein, the fourth processing module is also used for:

If the account book information is not extracted, the feedback information indicates that the video is not stored;

If the account book information is extracted, but the access video is not extracted according to the access address of the account book information, the feedback information indicates that the stored video is invalid;

If the access video is extracted, according to whether the access video can be decrypted by the first key, if the decryption fails, the feedback information indicates that the access video is not allowed to be accessed; After the digital watermark is superimposed on the decrypted access video, it is output to a playback device.

Wherein, the device also includes:

The access generation module is used to generate the access information of this visit;

a fifth processing module, configured to store the access information in the video surveillance information block chain;

an access signature module for signing the access information;

The access broadcast module is used to broadcast the signed access information to the video surveillance blockchain network.

Wherein, the access information includes at least one of the following:

the access initiation information;

the digital watermark encrypted with the second key;

access time information for the video;

Access the ledger information ID of the video.

Wherein, the device also includes:

The sixth processing module is configured to extract historical access information of the current video if the feedback information of the accessed video indicates that the stored video is invalid.

To achieve the above object, embodiments of the present invention provide a network device, including a transceiver, a memory, a processor, and a computer program stored in the memory and running on the processor; the processor executes the The above-described video processing method is implemented when the computer program is described.

To achieve the above object, embodiments of the present invention provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps in the above-mentioned video processing method.

The beneficial effects of the above-mentioned technical solutions of the present invention are as follows:

In the video processing method of the embodiment of the present invention, firstly, the target video is encrypted by using the first key; then the encrypted target video is externally stored, and a corresponding access address is generated for subsequent video access; The access address and the attribute information of the target video generate the ledger information of the target video, and finally store the ledger information in the video surveillance information blockchain. In this way, efficient management of videos can be achieved through the ledger information stored in the blockchain, and more convenient video access can be achieved.

Description of drawings

1 is one of the schematic flowcharts of a video processing method according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the video surveillance blockchain network structure;

3 is one of the application diagrams of the video processing method according to the embodiment of the present invention;

4 is a second schematic flowchart of a video processing method according to an embodiment of the present invention;

5 is a third schematic flowchart of a video processing method according to an embodiment of the present invention;

6 is a schematic diagram of access video extraction judgment;

FIG. 7 is the second application diagram of the video processing method according to the embodiment of the present invention;

8 is a schematic diagram of a video blockchain server applying the video processing method according to an embodiment of the present invention;

9 is a schematic structural diagram of a video processing apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, a video processing method according to an embodiment of the present invention includes:

Step 101, encrypt the received target video according to the first key;

Step 102, the encrypted target video is externally stored, and a corresponding access address is generated;

Step 103, generating ledger information according to the access address and the attribute information of the target video;

Step 104: Store the ledger information in the video surveillance information block chain.

Through the above steps 101-104, the video processing method according to the embodiment of the present invention firstly encrypts the target video using the first key; then externally stores the encrypted target video, and generates a corresponding access address for subsequent use Then, according to the access address and the attribute information of the target video, the ledger information of the target video is generated, and finally the ledger information is stored in the video surveillance information blockchain. In this way, efficient management of videos can be achieved through the ledger information stored in the blockchain, and more convenient video access can be achieved.

In this embodiment, the first key is preset, and the video is encrypted by using the first key, which improves the security of the video.

It should be known that the video processing method in this embodiment mainly targets surveillance video, and of course, is not limited to surveillance video. For the received surveillance video (target video), which is collected by surveillance cameras such as IP cameras, a device applying the video processing method of this embodiment (eg, a separately deployed server or an original management server) can receive its corresponding Surveillance video collected by all surveillance cameras under a video surveillance node (such as a local area network area). Among them, the scale of video surveillance nodes can be freely divided according to different physical locations, administrative areas, and security levels. In a video surveillance blockchain network, as shown in FIG. 2 , a plurality of video surveillance nodes are included. Preferably, the devices applying the video processing method of this embodiment are in one-to-one correspondence with the video surveillance nodes. In the video surveillance blockchain network, the data network can be either the Internet or a dedicated network (such as a local area network, a dedicated line network, etc.).

In addition, considering that during the continuous operation of the camera, the data stream captured by real-time monitoring is sent to the device applying the video processing method of this embodiment through a specific channel, in order to facilitate storage, optionally, step 101 includes:

Divide the received video stream data collected by cameras belonging to the same node to obtain the target video;

The target video is encrypted with the first key.

Here, the received video stream data of each camera belonging to the same node (video monitoring node) as the device applying the video processing method of this embodiment will be segmented, and the video stream segment will be used as the target video for encryption. The segmentation is performed based on a set rule, for example, the segmentation is performed by setting a time length, for example, the video stream data is segmented in units of 5 minutes.

After the encryption is completed, the encrypted target video can be stored externally. In this embodiment, different video surveillance nodes select their corresponding commercial cloud storage services or block storage services on a shared cloud according to their respective service subscriptions, security level requirements, and business cooperation methods. Therefore, optionally, the encrypted target video is externally stored, including:

The encrypted target video is stored in an external storage object corresponding to the target video.

In this way, the encrypted target video can be stored in a desired location, and based on the external storage object, an access address can be generated, so that the target video can be subsequently extracted from the external storage object through the access address.

Of course, for the received video stream data, after buffering and segmenting the obtained video stream segments, before further encryption, the quality of the video can be improved by processing such as transcoding and denoising, and the video description information of the video stream segment is generated. The video description information includes file identification (video summary), collection location, time stamp, time segment, file fingerprint, and the like.

Therefore, the attribute information of the target video includes at least one of the following: video identification; video time information; video monitoring location; video hash value; video user and security level; Among them, the video identification ID is the unique identification of the target video, which can be used to find the video; the time information of the video includes the start time, the end time, and the playback time length, etc.; the monitoring position of the video is the monitoring area of the video corresponding to the camera; The hash value of the video is used to prevent the video from being tampered with; the access period of the video's attributable user and security level is predetermined, and the attributable user can be an individual or a unit; the video's access period limits the video's access within this period.

Therefore, the ledger information generated according to the access address and the attribute information of the target video, optionally, the ledger information includes at least one of the following:

video identification;

Time information of the video;

video surveillance location;

the hash of the video;

The user and confidentiality level of the video;

the period for which the video will be accessible;

The access address of the video.

In addition, in this embodiment, the ledger information is packaged in the form of transaction content and submitted to the video surveillance information block chain for storage. After the certificate is formed, through the bookkeeping on the blockchain, the content source information and evidence chain that cannot be tampered with are formed. Once a special event occurs, the record on the blockchain can be used to confirm whether the video content of the camera has a certificate or not. Whether the content on the storage service is not extracted, and whether the video is subjectively not disclosed by the parties.

In order to enable other devices that share the video surveillance information blockchain and apply the video processing method of this embodiment in the video surveillance blockchain network, the verification, formula and accounting of the ledger information can also be performed. In this embodiment, Optionally, after the ledger information is stored in the video surveillance information blockchain, the method further includes:

sign the ledger information;

Broadcast the signed ledger information to the video surveillance blockchain network.

Here, the signature uses the default private key.

In addition, the device applying the video processing method of this embodiment can also obtain the ledger information broadcast by other devices through the broadcast information, so, optionally, the method further includes:

Extract the ledger information from the broadcast information, and check whether the ledger information has been recorded in the locally stored video blockchain ledger;

If recorded, ignore the broadcast information;

If not recorded, the ledger information is verified, and after the verification is passed, the ledger is stored in the local video blockchain ledger, and the ledger information is continued to be broadcast.

Wherein, if it is not recorded, the ledger information is verified, including:

Check the legality of the source of the ledger information, and interact with the external storage to determine that the target video corresponding to the ledger information has been correctly stored and the fingerprint is correct.

For example, as shown in Figure 3, after the video capture device (camera) in the video surveillance node 1 captures the video, it will transmit the captured video to the video blockchain server 1 that also belongs to the video surveillance node 1 (applying this implementation Examples of video processing methods of the device). The video block chain server 1 caches the video stream data, and divides it according to preset rules, and preprocesses the segmented video stream segments. The preprocessing includes: caching the video stream segments, encrypting the video content with the first key, and generating a video Description. After that, the video blockchain server 1 stores the encrypted video stream segment in the corresponding external storage device, wherein, if the storage is successful, a successful response including the storage address (such as a URL) will be fed back to generate an access address; Then perform error handling, such as selecting a secondary storage device or retrying. After the ledger is prepared on the chain (that is, the ledger information generated according to the access address and the attribute information of the stored video stream segments), the ledger information is stored in the video surveillance information blockchain. And, after the ledger information is signed, it will be broadcast in the video surveillance blockchain network. Specifically, the video blockchain server 1 uses the blockchain communication protocol to publish ledger information to neighboring nodes P2P in the form of transaction broadcast. The video blockchain server m belonging to other nodes that has received the ledger information also publishes the ledger information to the video blockchain server nP2P of the neighbor node in the same way. Video blockchain server 1, video blockchain server m, and video blockchain server n can use blockchain account data check, source check, etc. to verify the legitimacy and integrity of ledger information. The data that passes the legality verification is recorded in each node, and a consistent certificate book is formed between each node. At this point, the content collected by a video surveillance device is securely stored in the storage device in the form of multiple encrypted segments, and the on-chain ledger information of each segment is stored in the blockchain without tampering, and its original source can be verified. . In addition, the security of video clips is also guaranteed: only the video blockchain server of the node to which it belongs has the key to decrypt the video. Even if the access path stored on the chain is public, it can still ensure that the content cannot be decrypted and viewed.

It should also be known that, in this embodiment, in order to ensure that the video is not leaked, authorization verification will be performed on the visiting user. Therefore, optionally, after the account book information is stored in the video surveillance information blockchain, such as As shown in Figure 4, it also includes:

Step 105, after the visiting user passes the authorization verification, generate the access initiation information and digital watermark of this visit;

Step 106, according to the access request of the access user, find the corresponding access video;

Step 107, feedback according to the search result.

According to the above steps, firstly, the access initiation information and digital watermark of this visit are generated for the access user who has passed the authorization verification, and then the corresponding access video is searched according to the access request of the access user, and finally the search result is fed back.

Among them, the authorization verification of the access user is to verify the identity of the access user, including identity marking, identity authentication, and access authorization check. For access users who have passed authorization and verification, the generated access initiation information will be used to record the access, and the digital watermark will be used to superimpose the access video. Specifically, the access initiation information includes: the identification of the terminal used by the visiting user to access, the time identification of this visit and the identification of the visiting user; the digital watermark includes the identification of this visit (such as a UUID or a non-repeating digital letter) string) and the watermark P prepared for accessing the video according to the digital watermark generation rules.

In addition, in this embodiment, optionally, as shown in FIG. 5 , step 106 includes:

Step 501, extracting ledger information from the video surveillance information blockchain;

Step 502, matching the account book information with the retrieval information of this visit;

Step 503, if the match is successful, extract the access video according to the access address of the ledger information.

Based on the above steps 501-503, the ledger information will be extracted from the video surveillance information blockchain first, and the ledger information will be matched with the retrieval information of the current visit, so that if the matching is successful, according to the access information in the ledger information Address extraction to access the video.

Specifically, the retrieval information is input by the visitor, and its content includes but is not limited to time period, geographic location, and security level requirements. In the matching process, based on the identification ID of the ledger information in the video surveillance information blockchain, it will be sorted in the order of storage time, and then the specific information items of the ledger information will be parsed out for matching. Since the extracted access video is encrypted with the first key, the video stream segment needs to be decrypted with the first key, and then superimposed on the playback content with a digital watermark, and output to the playback end. The superposition method of the digital watermark can either use the subtitles visible to the visitor (displayed at a specified position or a random position), or the superposition in the frequency domain, so that the visitor cannot perceive it with the naked eye.

However, in this embodiment, corresponding to this visit, there may also be situations in which the ledger information cannot be extracted, the ledger information is extracted but the access video is not extracted from the access address, and the access video is extracted but cannot be decrypted. Therefore, optional Ground, step 107 includes:

If the account book information is not extracted, the feedback information indicates that the video is not stored;

If the account book information is extracted, but the access video is not extracted according to the access address of the account book information, the feedback information indicates that the stored video is invalid;

If the access video is extracted, according to whether the access video can be decrypted by the first key, if the decryption fails, the feedback information indicates that the access video is not allowed to be accessed; After the digital watermark is superimposed on the decrypted access video, it is output to a playback device.

In this way, as shown in Figure 6, it is possible to first determine whether there is account book information. If the account book information is not extracted, the visiting user will be informed that the camera does not collect the original data (the video is not stored); if the account book information is extracted, the access address such as URL , fetches the access video to the storage device. After that, if the access video is not extracted, the accessing user is informed that the storage device is faulty (the stored video is invalid); if the access video is extracted, the first key will be used for decryption. Afterwards, if the decryption fails, the visiting user is informed that the subject is unwilling to disclose (the access video is not allowed to be accessed); if the decryption succeeds, the visiting user can successfully obtain the video content.

In this embodiment, after step 107, it further includes:

Generate access information for this visit;

storing the access information in the video surveillance information blockchain;

sign the access information;

Broadcast the signed access information to the video surveillance blockchain network.

In this way, corresponding access information will be generated for each access, stored in the video surveillance information blockchain, and the access information will be signed and broadcast, so that the source can be traced when unauthorized video expansion occurs in the future. The specific implementation of the storage and broadcast of the access information is the same as the storage and broadcast of the ledger information, which will not be repeated here.

Wherein, the access information includes at least one of the following:

the access initiation information;

the digital watermark encrypted using the second key;

access time information for the video;

Access the ledger information ID of the video.

Here, the time information for accessing the video includes the time stamp and time start and end of the accessing video; the ledger information identifier for accessing the video is the ID of the ledger information recorded in the video surveillance information blockchain.

In this embodiment, optionally, the method further includes:

If the feedback information of the accessed video indicates that the stored video is invalid, the historical access information of the current video is extracted.

In this way, in the case of video failure, historical access information will be further extracted, so that the user can inquire about the failure reason.

As shown in Figure 7, after the access user enters the retrieval information of the access video, the video blockchain server 1 will initiate authorization verification for the access user, perform identity authentication and access authorization check on the access user, and record the relevant information. If the access user fails the authorization verification, the process ends; if the access user passes the authorization verification, the access initiation information and digital watermark of the current access are generated. After that, for the access users who have passed the authorization verification, look up the corresponding access video. If the access video successfully extracted into the storage device is cached, decrypted, and superimposed with a digital watermark, it is provided to the access user. After the access certificate is prepared on the chain (that is, the access information of this visit is generated), the access information is stored in the video surveillance information blockchain. And, after the access information is signed, it will be broadcast in the video surveillance blockchain network. Specifically, the video blockchain server 1 uses the blockchain communication protocol to publish access information to neighboring nodes P2P in the form of transaction broadcast. The video blockchain server m belonging to other nodes that has received the access information also publishes the access information to the video blockchain server nP2P of the neighbor node in the same way. Video blockchain server 1, video blockchain server m, and video blockchain server n can use blockchain account data check, source check, etc. to verify the legitimacy and integrity of access information. The data that passes the legality verification is recorded in each node, and a consistent certificate book is formed between each node. At this point, the invocation and access of a surveillance video is completed. During the invocation process, the data fragments are obtained by relying on the storage certificate account in the blockchain, and the process of decryption and watermarking is performed in the home video blockchain server. Videos that are successfully served to visiting users are watermarked. The access log (access initiation information) and the watermark ciphertext are all recorded in the blockchain in a non-tamperable manner, so that the source can be traced when unauthorized video spreads in the future.

Through the above content, the video blockchain server applying the video processing method of this embodiment, as shown in FIG. 8 , mainly includes a video processing module, a blockchain processing module and a management module, wherein the video processing module realizes the video transmission function, Video caching function, video segmentation, combination, transcoding function, video encryption and decryption function; blockchain processing module realizes communication function, smart contract function, consensus bookkeeping function, digital signature and verification function, distributed ledger storage and synchronization function; The management module implements configuration management, key storage, authentication and authorization, storage management, and access management.

To sum up, in the video processing method of the embodiment of the present invention, the first key is used to encrypt the target video; then the encrypted target video is externally stored, and a corresponding access address is generated for subsequent video access ; Then, according to the access address and the attribute information of the target video, the ledger information of the target video is generated, and finally the ledger information is stored in the video surveillance information blockchain. For the access request of the access user after authorization and verification, the corresponding access video will be found, and finally the search result will be fed back. In this way, efficient management of videos can be achieved through the ledger information stored in the blockchain, enabling more convenient video access, and at the same time, video access control that effectively traces the source of video access behavior and dissemination behavior.

As shown in FIG. 9, a video processing apparatus according to an embodiment of the present invention includes:

an encryption module 910, configured to encrypt the received target video according to the first key;

The first processing module 920 is used for externally storing the encrypted target video, and generating a corresponding access address;

A ledger generation module 930, configured to generate ledger information according to the access address and the attribute information of the target video;

The second processing module 940 is configured to store the ledger information in the video surveillance information block chain.

Wherein, the encryption module includes:

The preprocessing submodule is used to divide the received video stream data collected by the cameras belonging to the same node to obtain the target video;

An encryption submodule, configured to encrypt the target video by using the first key.

Wherein, the first processing module is also used for:

The encrypted target video is stored in an external storage object corresponding to the target video.

Wherein, the ledger information includes at least one of the following:

video identification;

Time information of the video;

video surveillance location;

the hash of the video;

The user and confidentiality level of the video;

the period for which the video will be accessible;

The access address of the video.

Wherein, the device also includes:

a ledger signature module, used to sign the ledger information;

The ledger broadcast module is used to broadcast the signed ledger information to the video surveillance blockchain network.

Wherein, the device also includes:

The ledger processing module is used to extract the ledger information from the broadcast information, and check whether the ledger information has been recorded in the locally stored video blockchain ledger; if it has been recorded, ignore the broadcast information; The ledger information is verified, and after the verification is passed, the ledger is stored in the local video blockchain ledger, and the ledger information is continued to be broadcast.

Wherein, the ledger processing module is also used for:

Check the legality of the source of the ledger information, and interact with the external storage to determine that the target video corresponding to the ledger information has been correctly stored and the fingerprint is correct.

Wherein, the device also includes:

The third processing module is used to generate the access initiation information and digital watermark of this access after the access user passes the authorization verification;

a search module, used to search for a corresponding access video according to the access request of the access user;

The fourth processing module is used for feedback according to the search result.

Wherein, the search module includes:

A ledger extraction sub-module, used for extracting ledger information from the video surveillance information blockchain;

a matching submodule, used to match the ledger information with the retrieval information of this visit;

The video extraction sub-module is used to extract the access video according to the access address of the ledger information if the match is successful.

Wherein, the fourth processing module is also used for:

If the account book information is not extracted, the feedback information indicates that the video is not stored;

If the account book information is extracted, but the access video is not extracted according to the access address of the account book information, the feedback information indicates that the stored video is invalid;

If the access video is extracted, according to whether the access video can be decrypted by the first key, if the decryption fails, the feedback information indicates that the access video is not allowed to be accessed; After the digital watermark is superimposed on the decrypted access video, it is output to a playback device.

Wherein, the device also includes:

The access generation module is used to generate the access information of this visit;

a fifth processing module, configured to store the access information in the video surveillance information block chain;

an access signature module for signing the access information;

The access broadcast module is used to broadcast the signed access information to the video surveillance blockchain network.

Wherein, the access information includes at least one of the following:

the access initiation information;

the digital watermark encrypted with the second key;

access time information for the video;

Access the ledger information ID of the video.

Wherein, the device also includes:

The sixth processing module is configured to extract historical access information of the current video if the feedback information of the accessed video indicates that the stored video is invalid.

The video processing apparatus of the embodiment of the present invention will use the first key to encrypt the target video; then externally store the encrypted target video, and generate a corresponding access address for subsequent video access; Access the address and attribute information of the target video, generate the ledger information of the target video, and finally store the ledger information in the video surveillance information blockchain. For the access request of the access user after authorization and verification, the corresponding access video will be found, and finally the search result will be fed back. In this way, efficient management of videos can be achieved through the ledger information stored in the blockchain, enabling more convenient video access, and at the same time, video access control that effectively traces the source of video access behavior and dissemination behavior.

It should be noted that the above-mentioned device is applied to the device, and the implementation manner of the above-mentioned embodiment is applicable to the device, and the same technical effect can also be achieved.

A network device according to another embodiment of the present invention, as shown in FIG. 10 , includes a transceiver 1010, a memory 1020, a processor 1000, and a computer program stored on the memory 1020 and executable on the processor 1000; The above-mentioned video processing method is implemented when the processor 1000 executes the computer program.

The transceiver 1010 is used to receive and transmit data under the control of the processor 1000 .

10, the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 1000 and various circuits of the memory represented by the memory 1020 are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1010 may be a number of elements, ie, including a transmitter and a receiver, providing a means for communicating with various other devices over a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.

A computer-readable storage medium according to an embodiment of the present invention stores a computer program thereon, and when the computer program is executed by a processor, implements the steps in the above-mentioned video processing method, and can achieve the same technical effect, which is: To avoid repetition, I will not repeat them here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk, or an optical disk.

It should be further noted that many of the functional components described in this specification are referred to as modules in order to more particularly emphasize the independence of their implementations.

In this embodiment of the present invention, the modules may be implemented in software so as to be executed by various types of processors. For example, an identified executable code module may comprise one or more physical or logical blocks of computer instructions, which may be structured as objects, procedures, or functions, for example. Nonetheless, the executable code of the identified module need not be physically located together, but may include different instructions stored in different bits that, when logically combined, constitute the module and implement the specification of the module Purpose.

In practice, an executable code module may be a single instruction or many instructions, and may even be distributed over multiple different code segments, among different programs, and across multiple memory devices. Likewise, operational data may be identified within modules, and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations (including over different storage devices), and may exist at least in part only as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module that can be implemented by software, regardless of cost, can build corresponding hardware circuits to implement corresponding functions. The hardware circuits include conventional very large scale integration (VLSI) circuits or gate arrays as well as off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. A module may also be implemented in programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

The above-described exemplary embodiments are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore the present invention should not be construed as the exemplary embodiments set forth herein limits. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, component sizes and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will be further understood that the terms "comprising" and/or "comprising" when used in this specification denote the presence of stated features, integers, steps, operations, components and/or components, but do not exclude one or more other The presence or addition of features, integers, steps, operations, components, components and/or groups thereof. Unless otherwise indicated, when stated, a range of values includes the upper and lower limits of that range and any subranges therebetween.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (28)

1. A video processing method, comprising:

encrypting the received target video according to the first key;

the encrypted target video is stored externally, and a corresponding access address is generated;

generating account book information according to the access address and the attribute information of the target video;

and storing the account book information into a video monitoring information block chain.

2. The method of claim 1, wherein encrypting the received target video according to the first key comprises:

segmenting received video stream data acquired by cameras belonging to the same node to obtain a target video;

and encrypting the target video through the first key.

3. The method of claim 1, wherein externally storing the encrypted target video comprises:

and storing the encrypted target video into an external storage object corresponding to the target video.

4. The method of claim 1, wherein the ledger information comprises at least one of:

video identification;

time information of the video;

monitoring position of the video;

a hash value of the video;

home user and privacy level of the video;

an accessibility deadline of the video;

the access address of the video.

5. The method of claim 1, further comprising, after storing the ledger information into a video surveillance information block chain:

signing the account book information;

and broadcasting the signed account book information to a video monitoring block chain network.

6. The method of claim 1, further comprising:

extracting the account book information from broadcast information, and checking whether the account book information is recorded in a locally stored video block chain account book;

if the broadcast information is recorded, ignoring the broadcast information;

and if not, verifying the account book information, storing the account book information into a local video block chain account book after the account book information passes verification, and continuously broadcasting the account book information.

7. The method of claim 6, wherein verifying the ledger information if not recorded comprises:

and checking the source validity of the account book information, interacting with an external memory, and determining that a target video corresponding to the account book information is correctly stored and a fingerprint is correct.

8. The method of claim 1, further comprising, after storing the ledger information into a video surveillance information block chain:

after the access user passes the authorization verification, generating access initiation information and a digital watermark of the access;

searching a corresponding access video according to the access request of the access user;

and feeding back according to the search result.

9. The method of claim 8, wherein searching for the corresponding access video according to the access request of the access user comprises:

extracting account book information from the video monitoring information block chain;

matching the account book information with the retrieval information accessed at this time;

and if the matching is successful, extracting the access video according to the access address of the account book information.

10. The method of claim 9, wherein feeding back according to the search result comprises:

if the account book information is not extracted, the feedback information indicates that the video is not stored;

if the account book information is extracted, but no access video is extracted according to the access address of the account book information, the feedback information indicates that the stored video is invalid;

if the access video is extracted, according to whether the first secret key can decrypt the access video, under the condition that decryption fails, feedback information indicates that the access video is not allowed to access; and under the condition of successful decryption, the digital watermark is superposed to the decrypted access video and then output to the playing device.

11. The method of claim 8, after the feedback according to the search result, further comprising:

generating access information of the current access;

storing the access information into a video monitoring information block chain;

signing the access information;

and broadcasting the signed access information to a video monitoring block chain network.

12. The method of claim 11, wherein the access information comprises at least one of:

the access initiation information;

the digital watermark encrypted using a second key;

accessing time information of the video;

and accessing the account book information identification of the video.

13. The method of claim 11, further comprising:

and if the feedback information of the accessed video indicates that the stored video is invalid, extracting historical access information of the current video.

14. A video processing apparatus, comprising:

the encryption module is used for encrypting the received target video according to the first secret key;

the first processing module is used for externally storing the encrypted target video and generating a corresponding access address;

the account book generating module is used for generating account book information according to the access address and the attribute information of the target video;

and the second processing module is used for storing the account book information into a video monitoring information block chain.

15. The apparatus of claim 14, wherein the encryption module comprises:

the preprocessing submodule is used for segmenting received video stream data acquired by cameras belonging to the same node to obtain a target video;

and the encryption submodule is used for encrypting the target video through the first secret key.

16. The apparatus of claim 14, wherein the first processing module is further configured to:

and storing the encrypted target video into an external storage object corresponding to the target video.

17. The apparatus of claim 14, wherein the ledger information comprises at least one of:

video identification;

time information of the video;

monitoring position of the video;

a hash value of the video;

home user and privacy level of the video;

an accessibility deadline of the video;

the access address of the video.

18. The apparatus of claim 14, further comprising:

the account book signing module is used for signing the account book information;

and the account book broadcasting module is used for broadcasting the signed account book information to the video monitoring block chain network.

19. The apparatus of claim 14, further comprising:

the account book processing module is used for extracting the account book information from broadcast information and checking whether the account book information is recorded in a locally stored video block chain account book; if the broadcast information is recorded, ignoring the broadcast information; and if not, verifying the account book information, storing the account book information into a local video block chain account book after the account book information passes verification, and continuously broadcasting the account book information.

20. The apparatus of claim 19, wherein the ledger processing module is further configured to:

and checking the source validity of the account book information, interacting with an external memory, and determining that a target video corresponding to the account book information is correctly stored and a fingerprint is correct.

21. The apparatus of claim 14, further comprising:

the third processing module is used for generating access initiating information and digital watermarks of the access after the access user passes the authorization verification;

the searching module is used for searching the corresponding access video according to the access request of the access user;

and the fourth processing module is used for feeding back according to the search result.

22. The apparatus of claim 21, wherein the lookup module comprises:

the account book extraction submodule is used for extracting account book information from the video monitoring information block chain;

the matching submodule is used for matching the account book information with the retrieval information accessed at the time;

and the video extraction sub-module is used for extracting the access video according to the access address of the account book information if the matching is successful.

23. The apparatus of claim 22, wherein the fourth processing module is further configured to:

if the account book information is not extracted, the feedback information indicates that the video is not stored;

if the account book information is extracted, but no access video is extracted according to the access address of the account book information, the feedback information indicates that the stored video is invalid;

if the access video is extracted, according to whether the first secret key can decrypt the access video, under the condition that decryption fails, feedback information indicates that the access video is not allowed to access; and under the condition of successful decryption, the digital watermark is superposed to the decrypted access video and then output to the playing device.

24. The apparatus of claim 21, further comprising:

the access generation module is used for generating access information of the current access;

the fifth processing module is used for storing the access information into a video monitoring information block chain;

the access signature module is used for signing the access information;

and the access broadcasting module is used for broadcasting the signed access information to the video monitoring block chain network.

25. The apparatus of claim 24, wherein the access information comprises at least one of:

the access initiation information;

the digital watermark encrypted using a second key;

accessing time information of the video;

and accessing the account book information identification of the video.

26. The apparatus of claim 24, further comprising:

and the sixth processing module is used for extracting historical access information of the current video if the feedback information of the accessed video indicates that the stored video is invalid.

27. A network device comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the video processing method according to any of claims 1-13.

28. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the video processing method according to any one of claims 1 to 13.

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