JP2007158757A - Information editing system - Google Patents

Abstract

[PROBLEMS] To easily perform prior content confirmation and editing work on video / audio data.
A recording / reproducing apparatus includes a camera, a microphone, a first video compression processing unit that compresses an input video signal and audio signal, and a first audio compression processing unit. A first video / audio multiplexing processing unit 9 for multiplexing data and a disk recording / reproducing unit 10 for recording on a recording medium (disk 11) are provided. Further, a second video compression processing unit 12 and a second audio compression processing unit 13 that perform high compression on the input video signal and audio signal, and a second video and audio multiplexing processing unit 14 that multiplexes the high compression data. And a wireless transmission unit 15 that transmits this output from the antenna 16. The reproduction of data on the disk 11 is separated by the first video / audio separation unit 17, decompressed by the first video decompression processing unit 18 and the first audio decompression processing unit 19, and the video signal output unit 20 and the audio signal output. The data is output from the unit 21 to the monitor 22 and the speaker 23, respectively.
[Selection] Figure 1

Description

  The present invention relates to an information editing system, and more particularly to an information editing system for editing video / audio data.

  Conventionally, as a device for recording and reproducing video / audio data, there are a VCR (Video Cassette Recorder), a DVD (Digital Versatile Disc) recorder, a HDD (Hard Disc Drive) recorder, and the like (see Patent Documents 1 and 2).

  Patent Document 3 describes a video / audio information gathering system using a video camera and its editing system, and records a representative still image of each cut and a time code in an IC memory separate from a recording medium at the time of shooting. To make editing work more efficient.

In addition, data is recorded on the disk with a compression method that maintains the image and sound quality of the video and audio as much as possible, and the same video and audio is recorded in the IC memory with a compression method with a higher compression ratio, and the recorded video and audio are edited. Is a technique for performing automatic editing on video and audio recorded on a disc based on the editing information (Patent Document 4).
JP-A-10-222890 JP 2002-251861 A WO97 / 10673 Publication JP 2005-259196 A

  Since the VCR is a tape medium, random accessibility is poor, and editing work such as searching for a required scene or dubbing requires a lot of time and effort. Compared to VCRs, DVD recorders and HDD recorders have better random accessibility, making it possible to search and edit the necessary scenes relatively smoothly. As the amount of recorded video and audio data increases, there is a possibility that the required scene search and editing operations cannot be performed smoothly as the data amount increases.

  For example, when editing video and audio shot with a disc movie, the work memory area and firmware storage area required for editing are limited due to hardware limitations, making it difficult to implement a full editing function. There is a demand for editing using a large work memory area (Personal Computer) and extensive editing software.

  However, even when editing is performed on a PC, if the amount of video / audio data increases due to high-vision or the like, there is a possibility that the editing operation cannot be performed smoothly. In addition, even if a recording / reproducing apparatus is attached with an IC memory or RFID tag so that the recorded contents can be easily grasped, and index information and audio information are written there, only the information recorded there is used for video. You cannot edit audio.

In Patent Document 3,
1) Editing work is not possible without a recording medium.
2) Since the editing work is performed on the original, editing is performed using data having a large amount of data, and there is a problem that the editing work may become heavy.

  Furthermore, Patent Document 4 automatically edits high-quality and high-quality video / audio recorded on the disc by editing video / audio with a small amount of data recorded in the IC memory. Otherwise there is a problem that editing is not possible.

  An object of this invention is to provide the technique which can perform the edit operation | work of information easy and highly flexible.

  The present invention is characterized in that video and audio are recorded on a recording medium with high image quality and high sound quality, and wirelessly transmitted after being compressed to high compression. Also, the present invention is characterized in that high-compressed data transmitted wirelessly is edited (including post-recording), and high-quality and high-quality video / audio recorded on a recording medium is automatically edited using the editing information.

  According to the present invention, even if the recording medium is not at hand, the recorded content can be confirmed and edited. You can check and edit.

  For home use, there is the convenience that the contents can be confirmed and edited and the recording medium can be managed without setting the recording medium on the deck. Since the editing work is performed using high-compression data with a small amount of data, the editing work can be easily performed.

  FIG. 1 is a functional block diagram showing a configuration example of a recording / reproducing apparatus according to an embodiment of the present invention. As shown in FIG. 1, the recording / playback apparatus 1 includes a camera 3 and a microphone 4 that are video / audio input units, a video signal input processing unit 5 that performs processing related to an input video signal, and processing related to an input audio signal. An audio signal input processing unit 6 to perform, a first video compression processing unit 7 for low compression of the video signal, a first audio compression processing unit 8 for low compression of the audio signal, and a second video for high compression of the video signal A compression processing unit 12 and a second audio compression processing unit 13 for highly compressing the audio signal.

  Further, a first video / audio multiplexing processing unit 9 that multiplexes data from the first video compression processing unit 7 and the first audio compression processing unit 8, a second video compression processing unit 12, and a second video compression processing unit 12. A second video / audio multiplexing processing unit 14 that multiplexes data from the audio compression processing unit 13 and a process of recording the output from the first video / audio multiplexing processing unit 9 on a recording medium (disk 11) are performed. It has a disk recording / reproducing unit 10 and a wireless transmission unit 15 that performs processing for transmitting the output from the second video / audio multiplexing processing unit 14 from the antenna 16.

  On the other hand, the data on the disk 11 is subjected to processing for reproduction in the disk recording / reproducing unit 10 and separated into video and audio in the first video / audio separation unit 17, and the first video expansion processing unit 18, 1 is decompressed by the audio decompression processing unit 19 and output from the video signal output unit 20 and the audio signal output unit 21 to the monitor 22 and the speaker 23, respectively. Each of the above operations is controlled by the system control unit 2.

  Since the operation is described in Patent Document 4, the details thereof will be omitted, and the description will be focused on the features of the invention. As described above, high compression data is transmitted to the outside, and low compression data is stored in a built-in disk.

  Next, a data configuration example at the time of recording on the disc will be described with reference to FIG. Where appropriate, reference is also made to FIG. FIGS. 2A and 2B are diagrams showing the configuration and correspondence between the disk recording data 31 and the wireless transmission data 41. FIG. In the disc recording data 31 shown in FIG. 2A, an editing unit 37 managed by time information, for example, in which low-compressed video data 33 and low-compressed audio data 35 are set is divided in the time axis direction. It has a continuous form. The wireless transmission data 41 shown in FIG. 2 (b) has a form in which editing units, which are a set of high-compressed video data 43 and high-compressed audio data 45 and separated by a time axis, are temporally continuous. Various data are managed by the system control unit 2 in this editing unit. By storing the delimiter time as a part of the editing information, it is possible to associate data before and after editing.

  The recording / reproducing apparatus 1 is, for example, a video movie. If the communication interface is provided in the video movie, the recording / reproducing apparatus 1 is installed alone in the home, for example, via a mobile phone if the interface is not provided. A set of high-compression video data 43 and high-compression audio data 45 and editing unit information related to the editing unit are sent to a stationary PC or DVD recorder.

  The user can use a high-compressed video data 43, a set of high-compressed audio data 45, and an information processing apparatus equipped with an interface for acquiring information about editing units, for example, a high-compression sent to a stationary PC. Based on the video data 43 and the highly compressed audio data 45, editing can be performed as follows. For example, the PC includes at least the second interface unit, a storage unit, a CPU, and an operation unit for performing an operation for editing data.

  FIG. 3 is a diagram showing processing for editing data recorded on the disk of the recording / reproducing apparatus 1 based on the high-compression video data 43 and the high-compression audio data 45 sent to the stationary PC. It is. As shown in FIG. 3, v3, a3, v4, and a4 represented by reference numeral 47 are deleted from the highly compressed video data 43 and the highly compressed audio data 45 (upper figure) of the wireless transmission data 41. If you want to edit, edit with highly compressed data (middle diagram). The data before editing (upper figure) and after editing (middle figure) are transmitted to the recording / reproducing apparatus 1, and the receiving side recording / reproducing apparatus records the data of the disk so that the data after editing (middle figure) matches the data structure. Update the recorded data (shown below). As shown in FIG. 2 (b), V3, A3, V4, and A4 are based on the difference in data structure before and after editing, editing records (for example, history information that V3, A3, V4, and A4 are deleted), etc. In the example shown in the figure, the data can be deleted by reflecting the editing process performed on the high-compression data on the low-compression data. The editing process information related to the editing process created by the stationary PC is the compressed data itself before and after the editing, the difference information thereof, or the editing process history information recorded when the editing process is performed. One of these.

  As described above, according to the recording / playback technology according to the present embodiment, video / audio data can be stored in a movie recording medium (including DV tape, DVD, HDD, etc.) with no compression or low compression on the go. After saving, the same video / audio data is subjected to high-compression processing (low-capacity processing) on the movie side, and then, for example, stationary recording / playback at home or workplace using a wireless communication means such as a mobile phone or a wireless LAN card Send to device (including PC). In this way, confirmation / editing of video / audio data is performed using high-compression data at home, and low-compression video / audio stored in the recording medium based on the editing history or editing result at this time. Edit audio data. The editing operation of the low-compression video / audio data may be performed on the movie side based on the editing history or the editing result, or the low-compressed video / audio data acquired later based on the editing history or the editing result is used. You can edit it.

  As a result, in the former case, the contents can be confirmed in advance with high-compressed data and can be edited without delivering the movie recording medium to the home. In the latter case, for example, the data acquired by the movie on the go is sent to the work place in advance, the other person edits at the work place, and the storage medium obtained when returning to the work place later is edited above You can also edit based on the results.

  Also, even when building a system in the home, even if the storage medium is not set in another device (even if you want to set it, it cannot be set because the original data can not be handled due to different standards etc. In some cases, content confirmation, editing, and storage media can be managed. In this way, the editing operation can be performed based on the data with a reduced data volume of high compression, and there is an advantage that a light editing operation can be performed without depending on the hardware capability of the apparatus.

  Next, a new technique using a recording / reproducing technique according to an embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a diagram showing an example of post-record editing. Note that “after-recording” is an abbreviation for after-recording, and refers to a process of adding sound later to a screen in a movie or a television. The wireless transmission data 41 and the after-recording audio data 61 shown in FIG. 2 are prepared. As shown by the arrow AR1, the video output 63 obtained from the wireless transmission data 41 for viewing during post-recording editing is provided. Based on the audio output 65 based on the post-recording audio data, viewing based on the editing is performed, and the editing process is determined. Based on the determined editing processing result, as shown by the arrow AR2, the recording is automatically edited based on the video outputs V1, V2,... Of the recording medium and the audio outputs A1 ′, A2 ′. Thus, the disk recording data 67 can be obtained.

  In this way, the high-compressed data transmitted wirelessly is post-record edited, and the editing information is used to automatically edit the high-quality and high-quality video / audio recorded on the recording medium. There is an advantage that you can.

  In each of the above embodiments, an example in which low-compressed data is recorded on the recording medium has been described. However, raw data may be recorded as it is.

  The present invention can be used for editing video / audio data.

It is a functional block diagram which shows the example of 1 structure of the recording / reproducing apparatus by one embodiment of this invention. FIGS. 2A and 2B are diagrams showing the configuration and correspondence between the disk recording data 31 and the wireless transmission data 41. FIG. It is a figure which shows the process which edits the data currently recorded on the disc of a recording / reproducing apparatus based on the high compression video data and the high compression audio | voice data which were sent to stationary PC. It is a figure which shows the example of post-recording editing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Recording / reproducing apparatus, 2 ... System control part, 3 ... Camera, 4 ... Microphone, 5 ... Video signal input process part, 6 ... Audio | voice signal input process part, 7 ... 1st video compression process part, 8 ... 1st Audio recording processing unit, 10 disc recording / reproducing unit, 11 recording medium, 12 second video compression processing unit, 13 second audio compression processing unit, 14 second video audio multiplexing processing unit, DESCRIPTION OF SYMBOLS 15 ... Wireless transmission part, 16 ... Antenna, 17 ... 1st video / audio separation part, 18 ... 1st video expansion | extension process part, 19 ... 1st audio | voice expansion | extension process part, 20 ... Video signal output part, 21 ... Audio | voice Signal output unit, 22 ... monitor, 23 ... speaker.

Claims (10)

A storage unit for storing video / audio data, a data compression unit for compressing the video / audio data, and the compressed video / audio data compressed by the data compression unit and the video / audio data are divided into editing units in the time axis direction. A recording device comprising: a data management unit for managing the compressed video and audio data; and a first interface unit that forms an interface for sending the editing unit information related to the editing unit to the outside;
A second interface unit forming an interface for acquiring data from the recording device, and the compressed video / audio data acquired via the second interface unit is acquired via the second interface unit. An operation unit for performing an operation for editing based on the editing unit information, and an editing for creating editing processing information for reflecting the editing processing performed on the compressed video / audio data to the video / audio data An information editing system comprising: an information processing device having a processing information creation unit.   The information editing system according to claim 1, wherein the storage unit stores data obtained by compressing the video / audio data by a lower compression process than the compressed video / audio data.   The editing process information includes at least one of compressed data before and after editing, difference information thereof, or editing process history information recorded when the editing process is performed. 2. The information editing system described in 2.   The information editing system according to any one of claims 1 to 3, wherein the first and second interface units are wireless communication interfaces.   5. The information editing according to claim 1, wherein the recording device performs automatic editing of the video / audio data based on editing processing information returned from the information processing device. 6. system.   6. The information editing system according to claim 1, wherein only one of the video data and audio data is edited and the result is reflected in automatic editing of the video and audio data. .   A storage unit for storing video / audio data, a data compression unit for compressing the video / audio data, and the compressed video / audio data compressed by the data compression unit and the video / audio data are divided into editing units in the time axis direction. And a first interface unit that forms an interface for sending the compressed video / audio data and the editing unit information related to the editing unit to the outside.   A second interface unit that forms an interface for acquiring data from the recording apparatus according to claim 7, and the compressed video / audio data acquired through the second interface unit is used as the second interface unit. An operation unit for performing an operation for editing based on the editing unit information acquired via the editing unit, and an editing process for reflecting the editing process performed on the compressed video / audio data on the video / audio data An information processing apparatus comprising: an edit processing information creation unit that creates information. Compressing video / audio data in which video data and audio data managed for each editing unit of data partitioned on the time axis are set;
Sending the compressed video and audio data;
Editing the transmitted compressed video and audio data for each editing unit, and obtaining editing processing information obtained by associating the difference before and after the editing processing with the editing unit;
And a step of automatically editing the video / audio data with reference to the acquired editing process information.   The program for making a computer perform the step of Claim 9.

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