JP4019945B2 - Summary generation apparatus, summary generation method, summary generation program, and recording medium recording the program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for automatically creating video and audio summaries.
[0002]
[Prior art]
Conventionally, when creating a video summary, a video creator previously set by a video editor or a scene extracted by a method in which a video break is automatically detected by a computer is used by the summary creator. It was created artificially by cutting and joining. As a method of automatically creating, there are a method of extracting only a characteristic part such as the strength of sound and a change of video, or a method of extracting an appropriate time from the video regardless of the content of the video.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 11-333161
[Patent Document 2]
Japanese Patent Laid-Open No. 8-116514
[Patent Document 3]
Japanese Patent Laid-Open No. 2002-245069
[Problems to be solved by the invention]
When creating a summary artificially, it is very difficult to create a summary so that the viewer can appreciate it. Thus, a method is conceivable in which the viewer is evaluated once and the result is reflected. However, when a summary video is created from a plurality of programs, it takes a very long time.
[0007]
In addition, when it is automatically created, it can save the labor and time of creation, but it does not necessarily include the part that looks attractive to the viewer side in the summary. I don't know if a good evaluation can be obtained. The summary is used for advertisement, for example. However, in the above-described conventional technology, an effective advertisement using the summary cannot be made.
[0008]
In addition, in order to effectively use the summary, it is necessary to create a summary with an appropriate time length according to the usage scene. Time and effort.
[0009]
An object of the present invention is to provide a technique for automatically creating an effective summary using the audience rating, and in particular, by specifying the duration of the summary, the summary of the duration is automatically generated. It aims at providing the technology to do.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is configured as follows.
[0013]
The present invention is a method for creating a summary of video or audio by the summary generation device , and for each audience rating based on audience rating data including the audience rating for each hour of video or audio to be summarized. A playback section data creation step for creating playback section data indicating a time section that is higher than the audience rating, and a summary time data that indicates the sum of the times of the time section for each audience rating based on the playback section data. Summary time data creation step, summary time length acquisition step for obtaining a required summary time length, and video or audio corresponding to the summary time length are extracted from the summary time data and the requested summary time length. a threshold determination step of determining a threshold value of the audience for, and obtain the time interval in which the viewing rate exceeds the threshold value from the playback section data, extracts the video or audio of the time interval, extracted And a generation step of generating a summary using an image or voice. Here, the reproduction section data includes a plurality of processes for obtaining a time section corresponding to a viewer rating higher than the viewer rating from the audience rating data for a specific audience rating by changing the size of the specific audience rating. Can be created by performing it once.
[0014]
That is, according to the present invention, from “viewing rate data” indicating the audience rating with respect to the passage of time of video or audio, “playback segment data” in which time segments that are equal to or higher than the audience rating with respect to the audience rating are counted, and Create "summary time data" that totals the total time of playback sections. Then, based on the summary time length specified by the user, an audience rating is obtained from the summary time data so that the summary time length and the total time of the playback section are the same value or the closest value. Extract to generate a summary.
According to the present invention, since the audience rating threshold value corresponding to the required summary time is determined, and the summary is generated using the threshold value, the user specifies the summary extracted from the portion with the highest audience rating. It becomes possible to generate with time length.
[0015]
The present invention also provides a summary generation apparatus suitable for carrying out the above method invention, a program for causing a computer to execute each step in the above method invention, and a recording medium recording the program.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. In the following description of the embodiment, “video” will be described as an example. However, this “video” may include only video, but generally includes audio. In addition, even in the case of only audio without including video, it is possible to create a summary by the same method as in the case of “video”. Hereinafter, first, the concept of the embodiment of the present invention will be described.
[0017]
In the apparatus according to the embodiment of the present invention, the data of the audience rating for each hour of the broadcast video or the video reproduced from the recording medium is used to extract a video of a portion having a higher audience rating than a predetermined threshold. Produces a summary. The predetermined threshold is determined based on the summary time length designated by the user. Thereby, it is possible to automatically generate a summary of a desired time length. Note that “video” in the present embodiment includes video distributed by broadcast, video distributed via a network, video by package media, and the like.
[0018]
1A and 1B are diagrams for explaining the concept of the embodiment of the present invention. (A) is an example of the graph which shows the relationship between the time and audience rating in * month * day. In the embodiment of the present invention, a video of a time section (hereinafter referred to as a playback section) having an audience rating exceeding a predetermined threshold according to a time length desired by the summary creator is extracted, and the summary video of that time length is extracted. Create In the case of the example of (A), it is the video (a) of the variety program and the video (b) of the news program that have been extracted with the audience rating exceeding the threshold. The extracted video with a high audience rating is edited as a summary video. (B) is an example of a summary video in a video broadcast on a certain channel on the day of month.
[0019]
Here, the principle of the method for generating the summary of the specified time length will be described.
[0020]
In the graph shown in FIG. 1A, when the threshold is moved in the direction of the highest audience rating, the time length of the playback section is shortened, and when the threshold is moved in the direction of the audience rating 0, the time length of the playback section is increased. As can be seen from FIG. 2, the relationship between the threshold value and the time length of the playback section is as shown in the graph of FIG. Therefore, if a playback section time length is designated, a threshold value is uniquely determined, and if a summary video is created using the threshold value, a summary of the designated time length can be created.
[0021]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
FIG. 3 shows a configuration of summary video generation apparatus 1 according to the embodiment of the present invention. The summary video generation apparatus 1 according to the present embodiment includes an audience rating data acquisition unit 2, a playback segment data creation unit 3, a summary time data creation unit 4, a playback segment acquisition unit 5, a threshold audience rating determination unit 6, and a summary time request acquisition. Unit 7 and summary video generation unit 8. Moreover, it has a memory unit (not shown) for storing each data.
[0023]
The audience rating data acquisition unit 2 acquires audience rating data including at least the time corresponding to the playback time or broadcast time of the video regarding the video to be summarized and the audience rating at that time. The audience rating is the percentage of people who watched the entire viewer or the video obtained from the sampling. Also, the video playback time is the elapsed time from the first part of the video when playing back the video recorded on a recording medium such as a DVD. The time corresponding to the broadcast time may be the broadcast time itself, or may be an elapsed time from the beginning of recording when the broadcast is recorded from a specific time.
[0024]
An example of audience rating data is shown in FIG. The unit of audience rating is%, and the unit of time is, for example, hour (60 minutes). In the present embodiment, a summary of the desired time length can be created in the same manner as when the audience rating is used even if the number of viewers is used instead of the audience rating.
[0025]
When audience rating data created in advance is used, the audience rating data may be acquired from the outside of the summary video generation apparatus 1 via a network as needed, or audience rating data is read from a recording medium or the like. You may store beforehand in the summary image | video production | generation apparatus 1. FIG.
[0026]
The summary video generation device 1 may generate the audience rating data by calculating the audience rating in the summary video generation device 1 instead of using the audience rating data created in advance. As a method for calculating the audience rating, for example, there are the following methods.
[0027]
First, from a plurality of viewer terminals that output the broadcast video or a plurality of viewer terminals that are playing back the stored video, an ID for identifying the time corresponding to the viewed video and the content related to the video Viewing data including is received. Then, the audience rating at that time can be obtained by totaling the number of viewer terminals where the target video was viewed at a specific time from a plurality of viewing data and dividing the number by the total number of viewer terminals. it can. By obtaining the audience rating for each time in the target video content, audience rating data as shown in FIG. 4 can be obtained.
[0028]
The playback section data creation unit 3 calculates a playback section for the audience rating based on the audience rating data, and creates playback section data. As a specific method, for example, while the audience rating data is sought in the range from the maximum value of the audience rating to the minimum value, a time interval of an audience rating larger than the value of the seeking audience rating is recorded. There is a way to go.
[0029]
FIG. 5 shows an example of playback section data. The example shown in the figure is an example when the audience rating is in the range of 10.72 to 10.04.
[0030]
The summary time data creation unit 4 creates audience rate vs. summary time data (summary time data). In this case, the summary time is the sum of the playback sections of each audience rating in the playback section data. Therefore, the summary time data creation unit 4 obtains the sum of the playback sections in the playback section data for each audience rating. An example of the summary time data is shown in FIG.
[0031]
The summary time request acquisition unit 7 acquires the time length of the summary video designated by the creator of the summary video. This can be realized, for example, by using a request using an Internet WWW service.
[0032]
The threshold audience rating determining unit 6 refers to the summary time corresponding to the time length acquired by the summary time request acquiring unit 7 from the summary time data, and determines an audience rating that is a threshold for video extraction. For example, in the example of FIG. 6, if the requested time length is 10, 10.33 is determined as the audience rating as the video extraction threshold. If there is no match between the requested time length and the time length in the summary time data, the audience rating corresponding to the time length closest to the requested time length is determined as a threshold value.
[0033]
The playback section acquisition unit 5 acquires the playback section of the video from the playback section data based on the audience rating that has become the threshold. That is, in the example of the playback section data shown in FIG. 5, when the audience rating that is the threshold is 10.33, 4:00 to 11:00 and 13: 0 to 16:00 are acquired as playback sections.
[0034]
The summary video generation unit 8 extracts the playback section from the target video and generates a summary video. The summary video is generated, for example, by connecting the video in the playback section. In order to extract a video, it may be extracted from a target video stored in an external device via a network, or the target video may be stored in advance in the summary video generation device 1 and extracted from there. Also good.
[0035]
FIG. 7 is a flowchart showing the flow of processing in the summary video generation apparatus 1. The operation of the summary video generation apparatus 1 will be described with reference to FIG.
[0036]
When a summary creator target video content is specified by the summary creator, the summary video generation device 1 checks whether summary time data has been created for the content (step 1), and summary time data has already been created. If so, go to Step 5.
[0037]
If summary time data has not been created, audience rating data acquisition unit 2 first acquires audience rating data (step 2). Then, the playback section data creation unit 3 receives the viewing rate data from the audience rate data acquisition unit 2 and creates playback section data (step 3).
[0038]
Thereafter, the summary time data creation unit 4 creates summary time data using the playback segment data created by the playback segment data creation unit 3 (step 4). Since the summary time data is the same as long as the audience rating data does not change, once the summary time data is created, the processing from step 2 to step 4 can be omitted from the next time.
[0039]
In step 5, the summary time request acquisition unit 7 acquires the summary time length from the user. The summary time length may be acquired first. Then, the threshold audience rating determination unit 6 determines an audience rating as a threshold for generating a summary video from the summary time data and the summary time length (step 6), and the playback section acquisition unit 5 determines the audience rating (threshold). A playback section for extracting summary video is acquired from the playback section data (step 7). Finally, the summary video generation unit 8 generates a summary video by extracting the video of the section specified in the playback section from the target video (step 8).
[0040]
As described above, it is possible to acquire a summary video having a time length requested by the viewer.
[0041]
The summary video generation device 1 can also be realized by describing the processing contents in the summary video generation device 1 of the embodiment of the present invention as a computer program and executing the program using a computer. The computer has a CPU, a memory, a hard disk, an input device, an output device, a CD-ROM drive, a communication processing device, etc., and the function of each part in the summary video generation device 1 is mainly according to the above program by the CPU. This is realized by performing processing. Also, when acquiring data from the outside or giving instructions from the user, input devices, output devices, communication processing devices, etc. are used, and memory or hard disks are used to store or temporarily store processing data. Is used.
[0042]
The above program is recorded on a computer-readable recording medium, for example, FD (floppy (registered trademark) disk), MO, ROM, memory card, CD-ROM, DVD, removable disk, etc., stored or distributed. It is possible to do. The program can also be provided through a network such as the Internet or e-mail.
[0043]
As described above, according to the embodiment of the present invention, the summary is generated based on the audience rating, so that it is possible to create an effective summary video suitable for the interest of the viewer, in addition to being specified. Thus, it is possible to automatically set a threshold value from the time length of the summary video, and it is possible to easily create the summary video without the past data or the experience of the summary video creator. In addition, it is possible to provide a summary video quickly according to the length of time required by the user of the summary video.
[0044]
The present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the scope of the claims.
[0045]
【The invention's effect】
According to the present invention, it is possible to generate a summary video in which a portion with a high audience rating is extracted with a time length specified by the user.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining the concept of an embodiment of the present invention.
FIG. 2 is a graph for explaining a relationship between a threshold value and a time length of a reproduction section.
FIG. 3 is a diagram showing a configuration of a summary video generation apparatus 1 in an embodiment of the present invention.
FIG. 4 is a diagram showing an example of audience rating data in the embodiment of the present invention.
FIG. 5 is a diagram showing an example of reproduction section data in the embodiment of the present invention.
FIG. 6 is a diagram showing an example of summary time data in the embodiment of the present invention.
FIG. 7 is a flowchart showing a flow of processing in the summary video generating apparatus 1 according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Summary video production | generation apparatus 2 Audience rating data acquisition part 3 Playback area data creation part 4 Summary time data creation part 5 Playback area acquisition part 6 Threshold audience rating determination part 7 Summary time request | requirement acquisition part 8 Summary video generation part

Claims (6)

A summary generation device for creating a video or audio summary,
A playback section data creation step for creating, for each audience rating, playback section data indicating a time segment that is equal to or higher than the audience rating, based on audience rating data including the audience rating for each video or audio to be summarized. ,
Based on the playback section data, a summary time data creating step for creating summary time data indicating the total time of the time section for each audience rating;
A summary time length acquisition step for obtaining a required summary time length;
From the summary time length and that is the summarized time data and the request, the threshold value determining step of determining a threshold value of the audience rating for extracting the video or audio of the summary time length,
In that it has a generating step including an audience obtains a time interval exceeds the threshold value from the playback section data, it extracts the video or audio of the time interval, to generate a summary using the extracted video or audio Feature method. The reproduction section data creation step includes
In claim 1 including the step of performing a plurality of times a process of acquiring the time interval corresponding to the viewing rate or more audience rating for a particular audience rating from the viewership data by changing the size of the particular audience rating The method described. A summary generator for creating a video or audio summary,
Reproduction section data creating means for creating reproduction section data indicating a time section equal to or higher than the audience rating for each audience rating based on audience rating data including the audience rating for each hour of video or audio to be summarized ,
Based on the playback section data, summary time data creating means for creating summary time data indicating the total time of the time section for each audience rating,
A summary time length acquisition means for acquiring a required summary time length;
From the summary time length and that is the summarized time data and the request, the threshold value determining means for determining a threshold value of the audience rating for extracting the video or audio of the summary time length,
Generating means for acquiring a time section in which the audience rating exceeds the threshold from the reproduction section data, extracting video or audio of the time section, and generating a summary using the extracted video or audio ; Feature summary generator. The reproduction section data creating means performs a process of acquiring a time section corresponding to a viewer rating higher than the audience rating from the audience rating data for a specific audience rating by changing the size of the particular audience rating a plurality of times. The summary generation device according to claim 3 , wherein the reproduction section data is created by performing. The program which makes a computer perform each step in the method of Claim 1 or 2 . A computer-readable recording medium on which the program according to claim 5 is recorded.

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