CN102868934B - Video object information search method and device based on intelligent television - Google Patents
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Abstract
本发明公开了一种基于智能电视的视频对象信息检索方法及装置。根据本发明,接收视频图片抓取请求,响应于所述视频图片抓取请求,抓取当前播放的视频图片;识别抓取的视频图片中的人脸视觉特征信息,查询获取与所识别的人脸视觉特征信息匹配的信息并进行展示。应用本发明,可以简化检索流程、降低检索所需的时间。
The invention discloses a video object information retrieval method and device based on an intelligent television. According to the present invention, a video picture capture request is received, and in response to the video picture capture request, the currently playing video picture is captured; the visual feature information of the human face in the captured video picture is identified, and the identified person is queried and obtained. The matching information of face visual feature information and display it. The application of the invention can simplify the retrieval process and reduce the time required for retrieval.
Description
技术领域 technical field
本发明涉及数字电视技术,尤其涉及一种基于智能电视的视频对象信息检索方法及装置。The invention relates to digital television technology, in particular to a video object information retrieval method and device based on an intelligent television.
背景技术 Background technique
随着国家三网融合的发展,电视市场逐渐成熟,越来越多的企业开始发展智能电视(DTV,DefinitionTelevision)。智能电视是指具备开放式操作系统与芯片,拥有开放式应用平台,可实现双向人机交互功能,能通过自主安装应用程序实现新功能或增值服务,并可借助三网接入、3C融合等满足多样化和个性化需求的终端应用平台。With the development of national triple play integration, the TV market has gradually matured, and more and more companies have begun to develop smart TVs (DTV, Definition Television). Smart TV refers to an open operating system and chip, with an open application platform, can realize two-way human-computer interaction function, can realize new functions or value-added services through independent installation of applications, and can use triple network access, 3C integration, etc. A terminal application platform that meets diverse and individual needs.
不同的用户分别有自己喜好的演员,因而,用户在观看到自己喜好的演员演出的影视剧时,希望能够通过对该演员信息的检索,了解关于该演员的一些信息,例如,该演员的近况信息、该演员曾出演的影视剧信息、与该演员演出电视剧的陌生演员信息等。Different users have their own favorite actors. Therefore, when users watch a film and television drama performed by their favorite actors, they hope to know some information about the actor by searching the information of the actor, for example, the current situation of the actor Information, information about film and television dramas that the actor has starred in, information about unfamiliar actors who have performed TV dramas with the actor, etc.
图1为现有基于智能电视的演员信息检索方法流程示意图。参见图1,该流程包括:FIG. 1 is a schematic flow chart of an existing actor information retrieval method based on a smart TV. Referring to Figure 1, the process includes:
步骤101,接收用户输入的演员信息检索请求,触发弹出预先设置的检索界面;Step 101, receiving an actor information retrieval request input by the user, and triggering a preset retrieval interface to pop up;
本步骤中,用户在观看影视剧的过程中,如果需要了解关于该演员的一些信息,则可以通过遥控器按键向智能电视机发送演员信息检索请求,智能电视机接收到演员信息检索请求后,弹出检索界面,以供用户进行演员信息检索。In this step, if the user needs to know some information about the actor during the process of watching a film and television drama, he can send an actor information retrieval request to the smart TV through the remote control button. After the smart TV receives the actor information retrieval request, A search interface pops up for users to search actor information.
实际用用中,可以预先在遥控器上设置进行演员信息检索的按键,当用户按下该按键,自动生成演员信息检索请求,输出至智能电视机。In actual use, a button for actor information retrieval can be set on the remote controller in advance, and when the user presses the button, an actor information retrieval request is automatically generated and output to the smart TV.
步骤102,接收用户输入的演员信息关键字,查询获取与该演员信息关键字匹配的信息并进行展示。Step 102, receiving the actor information keyword input by the user, querying and obtaining the information matching the actor information keyword and displaying it.
本步骤中,用户在弹出的检索界面的检索框中,输入与待检索演员相关的关键字,例如,在检索框中输入“高圆圆”,智能电视机在接收到包含高圆圆的检索关键字后,从预先存储的电子节目指南(EPG,ElectronicProgramGuide)或通过互联网上的服务器,查找与关键字高圆圆相匹配的信息,并将该匹配的信息呈现给用户。In this step, the user enters keywords related to the actor to be searched in the search box of the pop-up search interface, for example, enters "Gao Yuanyuan" in the search box, and after the smart TV receives the search keyword containing Gao Yuanyuan, From the pre-stored electronic program guide (EPG, Electronic Program Guide) or through the server on the Internet, search for information matching the keyword Gao Yuanyuan, and present the matching information to the user.
由上述可见,现有基于智能电视的演员信息检索方法,通过输入与演员相关的关键字,查询获取与关键字匹配的信息,用户无论是用键盘还是手写输入,都需要进入检索界面,在检索框中输入关键字,操作较为繁琐,检索所需的时间较长;进一步地,需要用户熟悉演员,对于忘记或不知道名字的演员,无法直接输入其演员关键字进行检索,而需要先通过影视剧作品的名称作为关键字,查询获取演出该影视剧作品的各演员信息,从中获取需要检索的演员信息,再以该演员信息作为关键字进行检索,使得操作流程更为繁琐,检索所需的时间更长,降低了用户的业务体验。It can be seen from the above that the existing actor information retrieval method based on smart TV, by inputting the keyword related to the actor, query and obtain the information matching the keyword, the user needs to enter the retrieval interface no matter whether the user uses the keyboard or handwriting input, in the retrieval Entering keywords in the box is cumbersome and takes a long time to retrieve; furthermore, users need to be familiar with actors. For actors who forget or do not know their names, they cannot directly enter their actor keywords for retrieval, but need to go through the film and television The name of the drama work is used as a keyword to query and obtain the information of each actor who performed the film and television drama, and the actor information to be retrieved is obtained from it, and then the actor information is used as a keyword to search, which makes the operation process more cumbersome, and the retrieval required The time is longer, which reduces the user's service experience.
发明内容 Contents of the invention
本发明的实施例提供一种基于智能电视的视频对象信息检索方法,简化检索流程、降低检索所需的时间。An embodiment of the present invention provides a method for retrieving video object information based on a smart TV, which simplifies the retrieval process and reduces the time required for retrieval.
本发明的实施例还提供一种基于智能电视的视频对象信息检索装置,简化检索流程、降低检索所需的时间。The embodiment of the present invention also provides a video object information retrieval device based on a smart TV, which simplifies the retrieval process and reduces the time required for retrieval.
为达到上述目的,本发明实施例提供的一种基于智能电视的视频对象信息检索方法,包括:In order to achieve the above purpose, a smart TV-based video object information retrieval method provided by an embodiment of the present invention includes:
接收视频图片抓取请求,响应于所述视频图片抓取请求,抓取当前播放的视频图片;Receiving a video picture grabbing request, in response to the video picture grabbing request, grabbing a currently playing video picture;
识别抓取的视频图片中的人脸视觉特征信息,查询获取与所识别的人脸视觉特征信息匹配的信息并进行展示。Identify the facial visual feature information in the captured video picture, query and obtain the information matching the recognized facial visual feature information and display it.
所述接收视频图片抓取请求包括:The receiving video picture capture request includes:
预先在遥控器上设置抓取视频图片的按键;Set the button for capturing video pictures on the remote control in advance;
接收用户按下抓取视频图片按键的操作指令,生成视频图片抓取请求,向智能电视机输出。Receive the user's operation instruction of pressing the capture video picture button, generate a video picture capture request, and output it to the smart TV.
所述接收视频图片抓取请求包括:The receiving video picture capture request includes:
监测到用户操作与智能电视机屏幕接触,触发弹出预先设置的功能菜单;It is detected that the user operation is in contact with the screen of the smart TV, triggering the pop-up of the pre-set function menu;
监测到用户操作选取功能菜单中的视频图片抓取控件,输出视频图片抓取请求。It is detected that the user operates and selects the video picture capture control in the function menu, and a video picture capture request is output.
所述功能菜单包含:视频图片抓取控件、视频对象信息检索控件以及频道切换控件。The function menu includes: video picture capture control, video object information retrieval control and channel switching control.
在所述监测到用户操作与智能电视机屏幕接触之后,触发弹出预先设置的功能菜单之前,进一步包括:After detecting that the user operation is in contact with the screen of the smart TV, before triggering the pop-up of the preset function menu, it further includes:
判断用户操作与智能电视机屏幕接触的时间是否超过预先设置的时间阈值,如果是,触发弹出预先设置的功能菜单,否则,不作处理。It is judged whether the contact time between the user operation and the screen of the smart TV exceeds the preset time threshold, if so, triggers the pop-up of the preset function menu, otherwise, does not process.
所述抓取当前播放的视频图片包括:Described grabbing the currently played video picture includes:
通过智能电视机内置的摄像头对当前播放的视频图片进行摄像;或,Take a video of the currently playing video through the built-in camera of the smart TV; or,
通过智能电视机内安装的摄像软件对当前播放的视频图片进行摄像;或,Take a video of the currently playing video picture through the camera software installed in the smart TV; or,
通过智能电视机外置的摄像头对当前播放的视频图片进行摄像;或,Take a video of the currently playing video through the external camera of the smart TV; or,
获取当前播放的时间信息,从存储的视频图片帧中,获取与当前播放的时间信息相匹配的视频图片帧。Obtain the time information of the current playback, and obtain the video picture frame matching the time information of the current playback from the stored video picture frames.
在所述抓取当前播放的视频图片后,进一步包括:After grabbing the currently played video picture, it further includes:
将抓取的视频图片进行展示,接收用户对视频图片的编辑,获取包含待检索对象的视频图片。Display the captured video pictures, receive the user's editing of the video pictures, and obtain the video pictures containing the objects to be retrieved.
所述识别抓取的视频图片中的人脸视觉特征信息包括:The human face visual feature information in the video picture captured by the recognition includes:
利用人脸识别技术,识别出视频图片中的人脸;Use face recognition technology to identify faces in video pictures;
提取识别的人脸特征部分,得到人脸视觉特征信息。Extract the recognized face features to obtain face visual feature information.
所述查询获取与该人脸视觉特征信息匹配的信息包括:The information obtained by the query and matched with the visual feature information of the human face includes:
预先获取包含人脸视觉特征信息与视频对象信息映射关系的人脸视觉特征信息库;Pre-obtaining a human face visual feature information database containing the mapping relationship between human face visual feature information and video object information;
将从视频图片中得到的人脸视觉特征信息,与人脸视觉特征信息库进行匹配,获取与得到的人脸视觉特征信息相匹配的人脸视觉特征信息;Matching the human face visual feature information obtained from the video picture with the human face visual feature information database, and obtaining the human face visual feature information matched with the obtained human face visual feature information;
根据人脸视觉特征信息与视频对象信息的映射关系,获取该人脸视觉特征信息映射的视频对象信息;According to the mapping relationship between the visual feature information of the human face and the video object information, the video object information mapped by the visual feature information of the human face is obtained;
根据获取的视频对象信息,查询获取与该视频对象信息匹配的信息并进行展示。According to the obtained video object information, query and obtain the information matching the video object information and display it.
所述将从视频图片中得到的人脸视觉特征信息,与人脸视觉特征信息库进行匹配,获取与得到的人脸视觉特征信息相匹配的人脸视觉特征信息包括:The described human face visual feature information obtained from the video picture is matched with the human face visual feature information database, and obtaining the human face visual feature information matched with the obtained human face visual feature information includes:
计算得到的人脸视觉特征信息与人脸视觉特征信息库中各人脸视觉特征信息之间的矢量距离;The calculated human face visual feature information and the vector distance between each human face visual feature information in the human face visual feature information database;
如果计算得到的最小矢量距离小于预先设置的矢量阈值,选取该最小矢量距离对应的人脸视觉特征信息库中的人脸视觉特征信息,为匹配的人脸视觉特征信息。If the calculated minimum vector distance is smaller than the preset vector threshold, select the human face visual feature information in the human face visual feature information database corresponding to the minimum vector distance as the matching human face visual feature information.
所述查询获取与该视频对象信息匹配的信息包括:The information obtained by the query and matched with the video object information includes:
从预先存储的电子节目指南中,获取与该视频对象信息匹配的信息;或,Obtain information matching the video object information from a pre-stored electronic program guide; or,
通过互联网上的服务器,获取与该视频对象信息匹配的信息。Obtain information matching the video object information through a server on the Internet.
一种基于智能电视的视频对象信息检索装置,该装置包括:视频图片抓取模块、识别模块以及查询模块,其中,A video object information retrieval device based on a smart TV, the device includes: a video picture capture module, an identification module and a query module, wherein,
视频图片抓取模块,用于接收视频图片抓取请求,并响应于所述视频图片抓取请求,抓取当前播放的视频图片;A video picture grabbing module, configured to receive a video picture grabbing request, and in response to the video picture grabbing request, grab a currently played video picture;
识别模块,用于识别抓取的视频图片中的人脸视觉特征信息;The recognition module is used to recognize the face visual feature information in the captured video picture;
查询模块,用于查询获取与识别模块中识别的人脸视觉特征信息相匹配的信息,并进行展示。The query module is used to query and obtain information matching the visual feature information of the human face recognized in the recognition module, and display it.
进一步包括:Further includes:
编辑模块,用于将抓取的视频图片进行展示,接收用户对视频图片的编辑,获取包含待检索对象的视频图片。The editing module is used for displaying captured video pictures, receiving edits of video pictures by users, and obtaining video pictures containing objects to be retrieved.
所述视频图片抓取模块包括:第一监测单元、第二监测单元以及视频图片抓取单元,其中,The video picture capture module includes: a first monitoring unit, a second monitoring unit and a video picture capture unit, wherein,
第一监测单元,用于在监测到用户操作与智能电视机屏幕接触后,触发弹出预先设置的功能菜单;The first monitoring unit is configured to trigger a preset function menu to pop up after detecting that the user operation is in contact with the screen of the smart TV;
第二监测单元,用于在监测到用户操作选取功能菜单中的视频图片抓取控件后,输出视频图片抓取请求。The second monitoring unit is configured to output a video picture capture request after detecting that the user operates the video picture capture control in the selected function menu.
视频图片抓取单元,用于根据接收的视频图片抓取请求,抓取当前播放的视频图片。The video picture grabbing unit is configured to grab the currently playing video picture according to the received video picture grabbing request.
所述查询模块包括:人脸视觉特征信息库单元、匹配单元、视频对象信息获取单元以及查询单元,其中,The query module includes: a human face visual feature information library unit, a matching unit, a video object information acquisition unit and a query unit, wherein,
人脸视觉特征信息库单元,用于预先获取包含人脸视觉特征信息与视频对象信息映射关系的人脸视觉特征信息库;A human face visual feature information base unit is used to pre-acquire a human face visual feature information base that includes a mapping relationship between human face visual feature information and video object information;
匹配单元,用于将从视频图片中得到的人脸视觉特征信息,与人脸视觉特征信息库进行匹配,获取与得到的人脸视觉特征信息相匹配的人脸视觉特征信息;The matching unit is used to match the visual feature information of the human face obtained from the video picture with the visual feature information database of the human face, and obtain visual visual feature information of the human face matched with the visual visual feature information of the obtained human face;
视频对象信息获取单元,用于根据人脸视觉特征信息与视频对象信息的映射关系,获取该人脸视觉特征信息映射的视频对象信息;The video object information acquisition unit is used to obtain the video object information mapped by the human face visual feature information according to the mapping relationship between the human face visual feature information and the video object information;
查询单元,根据获取的视频对象信息,查询获取与该视频对象信息匹配的信息并进行展示。The query unit, according to the obtained video object information, queries and acquires information matching the video object information and displays it.
由上述技术方案可见,本发明实施例提供的一种基于智能电视的视频对象信息检索方法及装置,接收视频图片抓取请求,抓取当前播放的视频图片;识别抓取的视频图片中的人脸视觉特征信息,查询获取与该人脸视觉特征信息匹配的信息并进行展示。这样,无需用户输入关键词信息,也无需用户记忆相关视频对象信息,简化了检索流程,降低了检索所需的时间。It can be seen from the above technical solution that the embodiment of the present invention provides a smart TV-based video object information retrieval method and device, which receives a video picture capture request, captures the currently playing video picture, and identifies the person in the captured video picture Face visual feature information, query and obtain information that matches the face visual feature information and display it. In this way, the user does not need to input keyword information, nor does the user need to memorize relevant video object information, which simplifies the retrieval process and reduces the time required for retrieval.
附图说明 Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,以下将对实施例或现有技术描述中所需要使用的附图作简单地介绍。显而易见地,以下描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员而言,还可以根据这些附图所示实施例得到其它的实施例及其附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other embodiments and their drawings according to the embodiments shown in these drawings.
图1为现有基于智能电视的演员信息检索方法流程示意图。FIG. 1 is a schematic flow chart of an existing actor information retrieval method based on a smart TV.
图2为本发明实施例基于智能电视的视频对象信息检索方法流程示意图。FIG. 2 is a schematic flowchart of a method for retrieving video object information based on a smart TV according to an embodiment of the present invention.
图3为本发明实施例基于智能电视的视频对象信息检索方法具体流程示意图。FIG. 3 is a schematic flowchart of a method for retrieving video object information based on a smart TV according to an embodiment of the present invention.
图4为本发明实施例基于智能电视的视频对象信息检索装置结构示意图。FIG. 4 is a schematic structural diagram of an apparatus for retrieving video object information based on a smart TV according to an embodiment of the present invention.
具体实施方式 detailed description
以下将结合附图对本发明各实施例的技术方案进行清楚、完整的描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所得到的所有其它实施例,都属于本发明所保护的范围。The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
现有基于智能电视的演员(视频对象)信息检索方法,通过在检索框中输入关键字获取演员相关信息,输入关键字的操作较为繁琐;进一步地,对于忘记或不知道名字的演员,需要进行多次检索才能获取相关信息,操作流程更为繁琐。The existing smart TV-based actor (video object) information retrieval method obtains actor-related information by entering keywords in the search box, and the operation of inputting keywords is relatively cumbersome; further, for actors who forget or do not know their names, it is necessary to perform Relevant information can only be obtained by multiple searches, and the operation process is more cumbersome.
人脸识别技术是指利用分析、比较人脸视觉特征信息,进行身份鉴别的计算机技术,是生物特征识别技术之一。广泛应用于考勤、门禁、信息安全、智能视频监控、海关、通行检验等领域或场景,通过采集人脸视觉特征信息,与预先存储的人脸视觉特征信息库进行匹配,从而可以确定采集的人脸视觉特征信息对应的用户信息。Face recognition technology refers to the computer technology that uses the analysis and comparison of facial visual feature information for identity identification, and is one of the biometric recognition technologies. It is widely used in attendance, access control, information security, intelligent video surveillance, customs, pass inspection and other fields or scenarios. By collecting face visual feature information and matching it with the pre-stored face visual feature information database, the collected person can be determined. User information corresponding to face visual feature information.
本发明实施例中,考虑采用人脸识别技术,对用户观看的电视节目中待检索的视频对象进行人脸识别,自动识别出视频对象,查询获取与该视频对象匹配的信息并进行展示。因而,无需用户输入关键词信息,也无需用户记忆相关视频对象信息,简化了检索流程,降低了检索所需的时间,从而提升用户的业务体验。In the embodiment of the present invention, it is considered to use face recognition technology to perform face recognition on the video object to be retrieved in the TV program watched by the user, automatically identify the video object, query and obtain the information matching the video object and display it. Therefore, the user does not need to input keyword information, nor does the user need to memorize related video object information, which simplifies the retrieval process and reduces the time required for retrieval, thereby improving the user's service experience.
较佳地,本发明实施例中,视频对象为演员。Preferably, in the embodiment of the present invention, the video object is an actor.
图2为本发明实施例基于智能电视的视频对象信息检索方法流程示意图。参见图2,该流程包括:FIG. 2 is a schematic flowchart of a method for retrieving video object information based on a smart TV according to an embodiment of the present invention. Referring to Figure 2, the process includes:
步骤201,接收视频图片抓取请求,响应于所述视频图片抓取请求,抓取当前播放的视频图片;Step 201, receiving a video picture capture request, and in response to the video picture capture request, capture the currently playing video picture;
本步骤中,接收视频图片抓取请求包括:In this step, receiving the video image grabbing request includes:
A11,预先在遥控器上设置抓取视频图片的按键;A11, pre-set the button on the remote control to capture video pictures;
本步骤中,与现有预先在遥控器上设置进行视频对象信息检索的按键相类似,可以通过扩展遥控器上的功能按键,增加抓取视频图片的功能按键。In this step, similar to the buttons previously set on the remote controller for video object information retrieval, function buttons for capturing video pictures can be added by expanding the function buttons on the remote controller.
A12,接收用户按下抓取视频图片按键的操作指令,生成视频图片抓取请求,向智能电视机输出。A12, receiving the user's operation instruction of pressing the button to capture the video picture, generating a video picture capture request, and outputting it to the smart TV.
本步骤中,用户在观看影视剧的过程中,如果需要了解关于该视频对象的一些信息,则可以通过按下遥控器上的抓取视频图片按键,向遥控器输出操作指令,遥控器根据该操作指令,生成视频图片抓取请求,向智能电视机输出,智能电视机接收该视频图片抓取请求,触发后续流程。如果用户按下遥控器上设置的进行视频对象信息检索的按键,则按照现有流程进行操作,在此不再赘述。In this step, if the user needs to know some information about the video object in the process of watching a film and television drama, he can output an operation instruction to the remote controller by pressing the capture video picture button on the remote controller. The operation command generates a video image capture request, which is output to the smart TV, and the smart TV receives the video image capture request to trigger the subsequent process. If the user presses the key set on the remote controller for retrieving video object information, the operation will be performed according to the existing flow, which will not be repeated here.
当然,实际应用中,接收视频图片抓取请求也可以包括:Of course, in practical applications, receiving a video image capture request may also include:
A21,监测到用户操作与智能电视机屏幕接触,触发弹出预先设置的功能菜单;A21, it is detected that the user operation is in contact with the screen of the smart TV, triggering the pop-up of the pre-set function menu;
本步骤中,如果智能电视机中设置有操作系统,则可以采用该方法,与触摸屏的移动电话操作相类似,可以在智能电视机中预先设置好用户需要的功能菜单,例如,预先设置的功能菜单中包含:视频图片抓取控件、视频对象信息检索控件、频道切换控件等。In this step, if the smart TV is provided with an operating system, this method can be used, similar to the touch screen mobile phone operation, the function menu required by the user can be pre-set in the smart TV, for example, the pre-set function The menu includes: video picture capture control, video object information retrieval control, channel switching control, etc.
本发明实施例中,用户操作包括:用户鼠标操作、触摸笔操作以及手指操作。In the embodiment of the present invention, the user operation includes: user mouse operation, touch pen operation and finger operation.
用户在观看影视剧的过程中,如果需要了解关于该视频对象的一些信息,则可以通过触碰智能电视机屏幕,以表示希望对智能电视机进行操作。In the process of watching a film and television drama, if the user needs to know some information about the video object, he can express his desire to operate the smart TV by touching the screen of the smart TV.
实际应用中,为了有效减少用户由于误操作触碰智能电视机屏幕而导致弹出功能菜单,本发明实施例中,在监测到用户操作与智能电视机屏幕接触之后,触发弹出预先设置的功能菜单之前,进一步包括:In practical applications, in order to effectively reduce the pop-up of the function menu caused by the user touching the screen of the smart TV by mistake, in the embodiment of the present invention, after detecting that the user operation touches the screen of the smart TV, before triggering the pop-up of the preset function menu , further including:
判断用户操作与智能电视机屏幕接触的时间是否超过预先设置的时间阈值,如果是,触发弹出预先设置的功能菜单,否则,不作处理。It is judged whether the contact time between the user operation and the screen of the smart TV exceeds the preset time threshold, if so, triggers the pop-up of the preset function menu, otherwise, does not process.
本步骤中,通过设置用户操作驻留在智能电视机屏幕的时间,以确定用户是否真正需要对智能电视机进行操作,如果用户操作与智能电视机屏幕接触的时间没有超过预先设置的时间阈值,表明该用户操作为误操作,则不作处理。In this step, determine whether the user really needs to operate the smart TV by setting the time that the user operates on the screen of the smart TV. If it indicates that the user operation is a wrong operation, it will not be processed.
A22,监测到用户操作选取功能菜单中的视频图片抓取控件,输出视频图片抓取请求。A22. It is detected that the user operates and selects the video picture capture control in the function menu, and a video picture capture request is output.
本步骤中,用户根据弹出的功能菜单,从中选取需要执行的功能,通过点击选取的功能控件,触发生成执行该功能控件对应的请求,例如,如果用户点击功能菜单中的视频对象信息检索控件,则生成视频对象信息检索请求并输出,如果用户点击功能菜单中的视频图片抓取控件,则生成视频图片抓取请求并输出。In this step, the user selects the function to be executed from the pop-up function menu, and clicks the selected function control to trigger and generate a request corresponding to the function control. For example, if the user clicks the video object information retrieval control in the function menu, A video object information retrieval request is generated and output, and if the user clicks the video image capture control in the function menu, a video image capture request is generated and output.
抓取当前播放的视频图片包括:Grabbing the currently playing video picture includes:
通过智能电视机内置的摄像头对当前播放的视频图片进行摄像;或,Take a video of the currently playing video through the built-in camera of the smart TV; or,
通过智能电视机内安装的摄像软件对当前播放的视频图片进行摄像;或,Take a video of the currently playing video picture through the camera software installed in the smart TV; or,
通过智能电视机外置的摄像头对当前播放的视频图片进行摄像;或,Take a video of the currently playing video through the external camera of the smart TV; or,
获取当前播放的时间信息,从存储的视频图片帧中,获取与当前播放的时间信息相匹配的视频图片帧。Obtain the time information of the current playback, and obtain the video picture frame matching the time information of the current playback from the stored video picture frames.
本步骤中,抓取当前播放的视频图片的方式有多种,既可以通过摄像头抓取视频图片,也可以通过摄像软件抓取视频图片,还可以根据时间信息查询并获取视频图片。通过摄像软件以及时间信息抓取视频图片的方式,还可以降低在智能电视机设置摄像头的成本。In this step, there are many ways to capture the currently playing video picture, not only the video picture can be captured through the camera, but also the video picture can be captured through the camera software, and the video picture can also be queried and obtained according to the time information. The method of capturing video pictures through camera software and time information can also reduce the cost of installing cameras on smart TVs.
本发明实施例中,在抓取当前播放的视频图片后,还可以进一步包括:In the embodiment of the present invention, after grabbing the currently played video picture, it may further include:
将抓取的视频图片进行展示,接收用户对视频图片的编辑,获取包含待检索对象的视频图片。Display the captured video pictures, receive the user's editing of the video pictures, and obtain the video pictures containing the objects to be retrieved.
本步骤中,在抓取当前播放的视频图片后,当前抓取的视频图片中,可能包含有多个对象,为了减少智能电视机处理视频图片所需的资源开销,本发明实施例中,可以对抓取的视频图片进行编辑,使编辑后的视频图片尽量只包含待检索对象,例如,只包含待检索对象的人脸部分。In this step, after capturing the currently playing video picture, the currently captured video picture may contain multiple objects. Edit the captured video picture so that the edited video picture contains only the object to be retrieved as much as possible, for example, only contains the face part of the object to be retrieved.
步骤202,识别抓取的视频图片中的人脸视觉特征信息,在数据库中进行查询获取与所识别的人脸视觉特征信息匹配的信息并进行展示。Step 202, identifying the visual feature information of the human face in the captured video picture, querying the database to obtain information matching the identified visual feature information of the human face, and displaying it.
本步骤中,识别抓取的视频图片中的人脸视觉特征信息包括:In this step, identifying the facial visual feature information in the captured video picture includes:
A31,利用人脸识别技术,识别出视频图片中的人脸;A31, using face recognition technology to identify faces in video images;
本步骤中,基于人的脸部特征进行识别,可以采用区域特征分析算法进行识别。关于人脸识别技术,为现有技术,具体可参见相关技术文献,在此不再赘述。In this step, recognition is performed based on human facial features, and a regional feature analysis algorithm may be used for recognition. As for the face recognition technology, it is an existing technology, and details can be found in relevant technical documents, and will not be repeated here.
A32,提取识别的人脸特征部分,得到人脸视觉特征信息。A32, extracting the recognized face feature part to obtain face visual feature information.
本步骤中,通过提取特征区域中的人脸特征部分(人脸纹理特征),进行数据化处理,得到人脸视觉特征信息。In this step, by extracting the feature part of the face (texture feature of the face) in the feature area and performing data processing, the visual feature information of the face is obtained.
人脸视觉特征信息包括:人脸的轮廓特征点信息以及面部器官的特征点信息等,其中,面部器官的特征点信息可以包括:左眼特征点信息、右眼特征点信息、耳朵特征点信息、嘴特征点信息以及鼻特征点信息。本发明实施例中,左眼特征点信息可以是左眼的位置信息。The face visual feature information includes: the outline feature point information of the face and the feature point information of the facial organs, etc., wherein the feature point information of the facial organs can include: left eye feature point information, right eye feature point information, ear feature point information , mouth feature point information and nose feature point information. In the embodiment of the present invention, the feature point information of the left eye may be position information of the left eye.
在数据库中进行查询获取与所识别的人脸视觉特征信息匹配的信息包括:Performing a query in the database to obtain information that matches the identified face visual feature information includes:
A41,预先获取包含人脸视觉特征信息与视频对象信息映射关系的人脸视觉特征信息库即数据库;A41, pre-obtaining a human face visual feature information base, i.e. a database, including a mapping relationship between human face visual feature information and video object information;
本步骤中,人脸视觉特征信息库可以由各运营商的相关技术人员,通过人脸识别技术以及训练方法,获取各视频对象的人脸视觉特征信息,并建立人脸视觉特征信息与视频对象信息的映射关系,形成人脸视觉特征信息库。In this step, the face visual feature information database can be obtained by the relevant technical personnel of each operator through face recognition technology and training methods to obtain the face visual feature information of each video object, and establish the face visual feature information and video object The mapping relationship of information forms the face visual feature information database.
A42,将从视频图片中得到的人脸视觉特征信息,与人脸视觉特征信息库进行匹配,获取与得到的人脸视觉特征信息相匹配的人脸视觉特征信息;A42, matching the face visual feature information obtained from the video picture with the face visual feature information database, and obtaining the face visual feature information matched with the obtained face visual feature information;
本步骤中,匹配的方法可以是计算得到的人脸视觉特征信息与人脸视觉特征信息库中各人脸视觉特征信息之间的矢量距离,如果计算得到的最小矢量距离小于预先设置的矢量阈值,选取该最小矢量距离对应的人脸视觉特征信息库中的人脸视觉特征信息,为匹配的人脸视觉特征信息。In this step, the matching method can be the vector distance between the calculated human face visual feature information and each human face visual feature information in the human face visual feature information database, if the calculated minimum vector distance is less than the preset vector threshold , select the face visual feature information in the face visual feature information database corresponding to the minimum vector distance as the matched face visual feature information.
矢量距离可以是欧氏距离,也可以是两个矢量之间的内积距离。The vector distance can be the Euclidean distance or the inner product distance between two vectors.
实际应用中,如果经过匹配,人脸视觉特征信息库中不存在与得到的人脸视觉特征信息相匹配的人脸视觉特征信息,则可以进一步向用户展示匹配失败信息,用户根据展示的匹配失败信息,可以通过现有发送视频对象信息检索请求的方式重新进行检索。In practical applications, if after matching, there is no face visual feature information that matches the obtained face visual feature information in the face visual feature information database, the matching failure information can be further displayed to the user, and the user can further display the matching failure information according to the displayed matching failure information. The information can be retrieved again through the existing method of sending a video object information retrieval request.
A43,根据人脸视觉特征信息与视频对象信息的映射关系,获取该人脸视觉特征信息映射的视频对象信息;A43, according to the mapping relationship between the face visual feature information and the video object information, acquire the video object information mapped by the face visual feature information;
本步骤中,在人脸视觉特征信息库中,获取匹配的人脸视觉特征信息,根据人脸视觉特征信息库中人脸视觉特征信息与视频对象信息的映射关系,可以获取该匹配的人脸视觉特征信息映射的视频对象信息。In this step, in the human face visual feature information database, the matching human face visual feature information is obtained, and according to the mapping relationship between the human face visual feature information and the video object information in the human face visual feature information database, the matching human face can be obtained Video object information for visual feature information mapping.
A44,根据获取的视频对象信息,查询获取与该视频对象信息匹配的信息并进行展示。A44. According to the obtained video object information, query and acquire information matching the video object information and display it.
本步骤中,查询获取与该视频对象信息匹配的信息包括:In this step, querying and obtaining information matching the video object information includes:
从预先存储的电子节目指南中,获取与该视频对象信息匹配的信息;或,Obtain information matching the video object information from a pre-stored electronic program guide; or,
通过互联网上的服务器,获取与该视频对象信息匹配的信息。Obtain information matching the video object information through a server on the Internet.
图3为本发明实施例基于智能电视的视频对象信息检索方法具体流程示意图。参见图3,以视频对象为演员为例,该流程包括:FIG. 3 is a schematic flowchart of a method for retrieving video object information based on a smart TV according to an embodiment of the present invention. Referring to Figure 3, taking the video object as an actor, the process includes:
步骤301,接收操作指令,抓取当前视频图片;Step 301, receiving an operation instruction and grabbing the current video image;
本步骤中,智能电视机根据用户下发的操作指令,抓取当前播放的视频图片并存储。In this step, the smart TV captures and stores the currently playing video picture according to the operation instruction issued by the user.
步骤302,在抓取的视频图片中识别和提取人脸特征部分信息;Step 302, identifying and extracting facial feature part information in the captured video picture;
本步骤中,利用人脸识别技术,识别出视频图片中的人脸,然后,通过预先设置的提取算法,提取出人脸特征部分信息。In this step, the human face in the video picture is recognized by using the face recognition technology, and then, the feature part information of the human face is extracted through a preset extraction algorithm.
步骤303,将所述提取的人脸特征部分信息与数据库中存储的演员脸部特征信息进行匹配;Step 303, matching the extracted facial feature part information with the actor's facial feature information stored in the database;
步骤304,确定所述数据库中存储有与所述提取的人脸特征部分信息相匹配的演员脸部特征信息,查表得出该演员的姓名;Step 304, determining that the actor's facial feature information matching the extracted facial feature part information is stored in the database, and looking up the table to obtain the actor's name;
本步骤中,如果提取的人脸特征部分信息与数据库中存储的某一演员脸部特征信息相符,则可以通过查表,得出该演员的姓名。In this step, if the extracted face feature information matches the face feature information of an actor stored in the database, the actor's name can be obtained by looking up the table.
步骤305,以该演员的姓名为关键字进行检索,获取与该演员的姓名相匹配的信息。Step 305, searching with the actor's name as a keyword to obtain information matching the actor's name.
本步骤中,可在电子节目指南中进行检索,也可通过互联网上的服务器进行检索。In this step, the retrieval can be performed in the electronic program guide, or through a server on the Internet.
这样,本发明实施例的视频对象信息检索方法,通过视频图片中的人脸识别,获取视频对象的脸部数据,将脸部数据同步到云端,进行视频对象的识别,非常适合于在看电视时使用;进一步地,可以通过EPG或者互联网系统平台进行更新或者添加视频对象的脸部数据,从而实现根据视频对象面部特征与姓名的关联,在观看影视剧节目时,可以快速地进行视频对象信息查找;而且,本发明通过抓取当前视频图片,并自动识别视频对象身份,进一步将搜索得到的与该视频对象有关的信息呈现在电视屏幕上,因此,有效地提高了视频对象信息获取的效率。In this way, the video object information retrieval method in the embodiment of the present invention obtains the face data of the video object through face recognition in the video picture, and synchronizes the face data to the cloud to identify the video object, which is very suitable for watching TV. further, the face data of the video object can be updated or added through the EPG or the Internet system platform, so as to realize the association between the facial features and the name of the video object, and when watching a film and television drama program, the video object information can be quickly Search; and, the present invention is by grabbing current video picture, and automatically identifying video object identity, further presents the information relevant to this video object that search obtains on the TV screen, therefore, has effectively improved the efficiency of video object information acquisition .
图4为本发明实施例基于智能电视的视频对象信息检索装置结构示意图。参见图4,该装置包括:视频图片抓取模块、识别模块以及查询模块,其中,FIG. 4 is a schematic structural diagram of an apparatus for retrieving video object information based on a smart TV according to an embodiment of the present invention. Referring to Fig. 4, the device includes: a video picture capture module, an identification module and a query module, wherein,
视频图片抓取模块,用于接收视频图片抓取请求,并响应于所述视频图片抓取请求,抓取当前播放的视频图片;A video picture grabbing module, configured to receive a video picture grabbing request, and in response to the video picture grabbing request, grab a currently played video picture;
识别模块,用于识别抓取的视频图片中的人脸视觉特征信息;The recognition module is used to recognize the face visual feature information in the captured video picture;
查询模块,用于查询获取与识别模块中识别的人脸视觉特征信息相匹配的信息,并进行展示。The query module is used to query and obtain information matching the visual feature information of the human face recognized in the recognition module, and display it.
较佳地,该装置进一步包括:Preferably, the device further includes:
编辑模块,用于将抓取的视频图片进行展示,接收用户对视频图片的编辑,获取包含待检索对象的视频图片。The editing module is used for displaying captured video pictures, receiving edits of video pictures by users, and obtaining video pictures containing objects to be retrieved.
其中,in,
视频图片抓取模块包括:第一监测单元、第二监测单元以及视频图片抓取单元(图中未示出),其中,The video picture capture module includes: a first monitoring unit, a second monitoring unit and a video picture capture unit (not shown in the figure), wherein,
第一监测单元,用于在监测到用户操作与智能电视机屏幕接触后,触发弹出预先设置的功能菜单;The first monitoring unit is configured to trigger a preset function menu to pop up after detecting that the user operation is in contact with the screen of the smart TV;
第二监测单元,用于在监测到用户操作选取功能菜单中的视频图片抓取控件后,输出视频图片抓取请求。The second monitoring unit is configured to output a video picture capture request after detecting that the user operates the video picture capture control in the selected function menu.
视频图片抓取单元,用于根据接收的视频图片抓取请求,抓取当前播放的视频图片。The video picture grabbing unit is configured to grab the currently playing video picture according to the received video picture grabbing request.
查询模块包括:人脸视觉特征信息库单元、匹配单元、视频对象信息获取单元以及查询单元(图中未示出),其中,The query module includes: a human face visual feature information library unit, a matching unit, a video object information acquisition unit, and a query unit (not shown in the figure), wherein,
人脸视觉特征信息库单元,用于预先获取包含人脸视觉特征信息与视频对象信息映射关系的人脸视觉特征信息库;A human face visual feature information base unit is used to pre-acquire a human face visual feature information base that includes a mapping relationship between human face visual feature information and video object information;
匹配单元,用于将从视频图片中得到的人脸视觉特征信息,与人脸视觉特征信息库进行匹配,获取与得到的人脸视觉特征信息相匹配的人脸视觉特征信息;The matching unit is used to match the visual feature information of the human face obtained from the video picture with the visual feature information database of the human face, and obtain visual visual feature information of the human face matched with the visual visual feature information of the obtained human face;
视频对象信息获取单元,用于根据人脸视觉特征信息与视频对象信息的映射关系,获取该人脸视觉特征信息映射的视频对象信息;The video object information acquisition unit is used to obtain the video object information mapped by the human face visual feature information according to the mapping relationship between the human face visual feature information and the video object information;
查询单元,根据获取的视频对象信息,查询获取与该视频对象信息匹配的信息并进行展示。The query unit, according to the obtained video object information, queries and acquires information matching the video object information and displays it.
显然,本领域技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若对本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also includes these modifications and variations.
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