JP2014241016A - Index creation device, index creation system, index creation method and index creation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an index creation device, an index creation system, an index creation method and an index creation program capable of easily integrating a video into a learning material for compensating for the experience of fault handling.SOLUTION: An index creation device includes: a voice recognition part; a keyword extraction part; a time data extraction part; and an index creation part. A voice recognition part generates character string data by voice recognition from a video file including video data, voice data and time data. The keyword extraction part extracts a keyword from the character string data. A time data extraction part extracts the time data associated with the voice data being the base of the character string data from which the keyword has been extracted from the video file. An index creation part registers the keyword extracted as an index for searching the video data and the extracted time data in association in a database device.

Description

  Embodiments described herein relate generally to an index creation device, an index creation system, an index creation method, and an index creation program.

  When a failure occurs in the facility, the failure handling worker may take advantage of the knowledge and know-how he possesses and respond to the failure that has occurred. However, the failure handling worker may retire from the failure handling work. In addition, even facilities that have been operating stably up to now may have a higher frequency of failure as they age. Against this background, there is a need for a mechanism that complements the experience in handling failures so that even failure handling workers with little experience in handling failures can implement the failure handling appropriately and quickly.

  If a video obtained by photographing an actual work for handling a failure can be used as a learning material, a failure handling worker who has little experience for handling a failure can effectively supplement the experience for handling a failure (see, for example, Patent Document 1). .

JP 2008-84068 A

  However, in order to prepare a video as a learning material, it is necessary to edit the shot video, which requires a lot of costs (time and expense). For this reason, there is a problem that conventional devices cannot easily incorporate video into a learning material for supplementing the experience of handling a failure.

  The problem to be solved by the present invention is to provide an index creation device, an index creation system, an index creation method, and an index creation program capable of easily incorporating video into a learning material for supplementing the experience of dealing with a failure. It is to be.

  The index creation device of the embodiment includes a voice recognition unit, a keyword extraction unit, a time data extraction unit, and an index creation unit. The voice recognition unit acquires voice data from a video file including the video data and voice data associated with the time data and the time data, and generates character string data by voice recognition from the acquired voice data. To do. The keyword extraction unit extracts keywords from the character string data. The time data extraction unit extracts time data corresponding to the audio data that is the basis of the character string data from which the keyword is extracted from the video file. The index creation unit associates the keyword extracted as an index for searching the video data with the extracted time data and registers them in the database device.

  The index creation system of the embodiment includes a voice recognition unit, a keyword extraction unit, a time data extraction unit, and an index creation unit. The voice recognition unit acquires voice data from a video file including the video data and voice data associated with the time data and the time data, and generates character string data by voice recognition from the acquired voice data. To do. The keyword extraction unit extracts keywords from the character string data. The time data extraction unit extracts time data corresponding to the audio data that is the basis of the character string data from which the keyword is extracted from the video file. The index creation unit associates the keyword extracted as an index for searching the video data with the extracted time data and registers them in the database device.

  The index creation method of the embodiment includes a step of generating character string data, a step of extracting a keyword, a step of extracting time data, and a step of registering in a database device. In the step of generating character string data, the voice recognition unit acquires voice data from a video file including the video data and voice data associated with the time data, and the time data. Character string data is generated by voice recognition. In the step of extracting keywords, the keyword extraction unit extracts keywords from character string data. In the step of extracting time data, the time data extraction unit extracts time data corresponding to the audio data that is the basis of the character string data from which the keyword is extracted from the video file. In the step of registering in the database device, the index creating unit registers the keyword extracted as an index for searching the video data and the extracted time data in association with each other in the database device.

  The index creation program of the embodiment causes a computer to execute a procedure for generating character string data, a procedure for extracting a keyword, a procedure for extracting time data, and a procedure for registering in a database device. The procedure for generating character string data is as follows. The computer acquires audio data from a video file including video data and audio data associated with the time data, and time data, and the audio data is acquired from the acquired audio data. Character string data is generated by recognition. In the procedure for extracting keywords, the computer extracts keywords from character string data. In the procedure for extracting the time data, the computer extracts time data corresponding to the audio data that is the basis of the character string data from which the keyword is extracted from the video file. In the procedure of registering in the database device, the computer registers the keyword extracted as an index for searching the video data and the extracted time data in association with each other in the database device.

It is a block diagram which shows the structural example of the index creation system in this embodiment. It is a figure which shows the example of the keyword registered into the keyword database apparatus in this embodiment with a table | surface. It is a figure which shows the example of the video file registered into the video file database apparatus in this embodiment with a table | surface. It is a figure which shows the example of the keyword registered into the video file identification data and keyword memory | storage part in this embodiment by a table | surface. It is a figure which shows the example of the index data registered into the index database apparatus in this embodiment with a table | surface. It is a flowchart which shows the example of an operation | movement procedure of the index production apparatus in this embodiment.

  This embodiment will be described in detail with reference to the drawings. The index creation system associates an index for searching video data for failure handling, a video file (video data), and time data in association with each other and stores them as a database. Thereby, the index creation system can easily incorporate the video into the learning material for supplementing the experience of dealing with the failure.

  FIG. 1 is a block diagram showing a configuration example of an index creation system. The index creation system includes a keyword / video file input device 100, a keyword registration device 200, a keyword / database device 300, a video file registration device 400, a video file / database device 500, an index creation device 600, an index A database device 700 and a search keyword input device 1000 are provided. The index creation system may include at least one of a video file search device 800 (video file search unit) and a time chart creation device 900 (time chart creation unit).

  The keyword / video file input device 100 is a device for inputting a keyword as an index and a video file to the index creation system. The keyword / video file input apparatus 100 accepts an operation input for inputting a keyword as an index. The keyword as an index may be a keyword associated with time data for searching for video data included in the video file. For example, the keyword may be information (for example, a work item name) indicating a work item planned by the failure handling worker. The keyword / video file input device 100 outputs information indicating the keyword to the keyword registration device 200.

  The keyword / video file input device 100 receives a video file. The video file includes video data, audio data, and time data. This video data may be video data of a work taken when dealing with a failure. The voice data may be voice data in which a voice of a failure handling worker who handles a failure is recorded. This voice may include a voice in which the work item name is pronounced. The video data and audio data are associated with each other by time data. The keyword / video file input device 100 outputs the video file to the video file registration device 400.

  Note that the video file may include a time data group, a video data group, and an audio data group. That is, time data, video data, and audio data may be defined for each chapter by dividing the video file into a plurality of chapters.

  Information indicating a keyword is input to the keyword registration device 200 from the keyword / video file input device 100. The keyword registration device 200 transfers information indicating the keyword to the keyword / database device 300 for registration.

  The keyword database apparatus 300 receives information indicating a keyword from the keyword registration apparatus 200. The keyword database apparatus 300 stores information indicating keywords.

  FIG. 2 is a table showing examples of keywords registered in the keyword database device. The keyword database apparatus 300 may store information indicating keywords in a table format (table format). In FIG. 2, keyword A, keyword B, and keyword C are registered in the table data. Here, the registered keyword may be a work item name or a trouble handling worker name.

  Returning to FIG. 1, the description of the configuration example of the index creation system will be continued. A video file is input to the video file registration device 400 from the keyword / video file input device 100. The video file registration apparatus 400 adds video file identification data (for example, video information name) to the video file. The video file registration device 400 transfers the video file identification data and the video file to the video file / database device 500 for registration. The video file registration device 400 outputs the video file identification data to the index creation device 600.

  Video file identification data and a video file are input from the video file registration apparatus 400 to the video file database apparatus 500. The video file database apparatus 500 stores video file identification data and video files in association with each other.

  FIG. 3 shows a table of examples of video files registered in the video file database apparatus. The video file database apparatus 500 may store the video file identification data and the video file in association with each other in a table format (table format).

  In FIG. 3, a video data group V1, an audio data group S1, and a time data group T1 are associated with the video file identification data F1. The video file identification data F2 is associated with a video data group V2, an audio data group S2, and a time data group T2. The video file identification data F3 is associated with a video data group V3, an audio data group S3, and a time data group T3.

  Returning to FIG. 1, the description of the configuration example of the index creation system will be continued. The index creation device 600 generates character string data by voice recognition from audio data associated with video data included in the video file, and a keyword as an index for searching video data from the generated character string data To extract. The index creation device 600 associates the keyword as an index, video file identification data, and time data with each other and registers them in the index database device 700.

  The index creation device 600 includes a voice recognition unit 610, a character string data storage unit 620, a keyword extraction unit 630, a video file identification data / keyword storage unit 640, a time data extraction unit 650, and an index creation unit 660. Have.

  Video file identification data is input from the video file registration device 400 to the voice recognition unit 610. The audio recognition unit 610 acquires audio data (see FIG. 3) included in the video file indicated by the video file identification data from the video file / database device 500. The voice recognition unit 610 extracts a character string from the acquired voice data by voice recognition. The voice recognition unit 610 generates character string data (for example, a word or a phrase) based on the extracted character string. The voice recognition unit 610 stores the generated character string data in the character string data storage unit 620.

  The character string data generated by the voice recognition unit 610 is input from the voice recognition unit 610 to the character string data storage unit 620. The character string data storage unit 620 stores the character string data generated by the voice recognition unit 610.

  The keyword extraction unit 630 acquires video file identification data indicating a video file including the audio data acquired by the audio recognition unit 610 from the video file / database device 500. In addition, the keyword extraction unit 630 acquires the character string data generated by the voice recognition unit 610 from the character string data storage unit 620. Also, the keyword extraction unit 630 acquires information indicating the keyword from the keyword / database apparatus 300.

  The keyword extraction unit 630 extracts the keyword registered in the keyword / database device 300 from the character string data registered in the character string data storage unit 620 as an index for searching video data. The keyword extraction unit 630 associates the video file identification data with the keyword extracted as an index and registers them in the video file identification data / keyword storage unit 640.

  Video file identification data and the extracted keyword are input from the keyword extraction unit 630 to the video file identification data / keyword storage unit 640. The video file identification data / keyword storage unit 640 stores the video file identification data and the extracted keyword in association with each other.

  FIG. 4 shows a table showing examples of keywords registered in the video file identification data / keyword storage unit. The video file identification data / keyword storage unit 640 may store the video file identification data and the extracted keyword in association with each other in a table format (table format). Here, a plurality of keywords may be associated with the video file identification data.

  In FIG. 4, the keyword A and the keyword B are associated with the video file identification data F1. This indicates that the video data included in the video file indicated by the video file identification data F1 includes videos corresponding to the keyword A and the keyword B. Further, the keyword C is associated with the video file identification data F2. This indicates that the video data included in the video file indicated by the video file identification data F2 includes a video corresponding to the keyword C.

  Returning to FIG. 1, the description of the configuration example of the index creation system will be continued. The time data extraction unit 650 acquires the video file identification data and the keyword extracted as an index from the video file identification data / keyword storage unit 640. The time data extraction unit 650 specifies audio data including the extracted keyword from the audio data group included in the video file indicated by the video file identification data. Further, the time data extraction unit 650 extracts time data associated with the specified voice data, that is, time data corresponding to the voice data that is the basis of the character string data from which the keyword is extracted. The time data extraction unit 650 outputs the video file identification data, the keyword extracted as an index, and the extracted time data to the index creation unit 660.

  The index creation unit 660 receives video file identification data, a keyword extracted as an index, and extracted time data from the time data extraction unit 650. The index creating unit 660 associates the video file identification data, the keyword extracted as an index, and the extracted time data with each other and registers them in the index database apparatus 700.

  Note that the video file identification data may not be registered in the index database device 700 when the video file does not need to be identified (for example, when there is one video file).

  The index database device 700 receives video file identification data, keywords extracted as indexes, and extracted time data from the index creation unit 660 of the index creation device 600. The index database device 700 associates the video file identification data, the keyword extracted as an index, and the extracted time data, and stores them as index data.

  FIG. 5 is a table showing an example of index data registered in the index database device. The index database apparatus 700 may store the video file identification data, the keyword extracted as an index, and the extracted time data in association with each other in a table format (table format).

  In FIG. 5, the keyword A, the video file identification data F1, and the extracted time data t11 are associated with each other. This means that the video corresponding to the keyword A is included in the chapter corresponding to the time data t11 in the video data group V1 (see FIG. 3) included in the video file indicated by the video file identification data F1. Show.

  In FIG. 5, the keyword B, the video file identification data F1, and the extracted time data t12 are associated with each other. This means that the video corresponding to the keyword B is included in the chapter corresponding to the time data t12 in the video data group V1 (see FIG. 3) included in the video file indicated by the video file identification data F1. Show.

  In FIG. 5, the keyword C, the video file identification data F2, and the extracted time data t21 are associated with each other. This means that the video corresponding to the keyword C is included in the chapter corresponding to the time data t21 in the video data group V2 (see FIG. 3) included in the video file indicated by the video file identification data F2. Show.

  Returning to FIG. 1, the description of the configuration example of the index creation system will be continued. The search keyword input device 1000 accepts an operation input for inputting a keyword (search keyword) as an index. The keyword as an index may be a keyword associated with time data for searching for video data included in the video file. For example, the keyword may be information (for example, a work item name) indicating a work item planned by the failure handling worker. The search keyword input device 1000 outputs information indicating the keyword as an index to the video file search device 800 and the time chart creation device 900.

The video file search apparatus 800 includes a video file identification data time extraction unit 810 and a video file search unit 820.
Information indicating a keyword as an index is input to the video file identification data time extraction unit 810 from the search keyword input device 1000. The video file identification data time extraction unit 810 acquires the video file identification data and time data (see FIG. 5) associated with the keyword as an index from the index database device 700. The video file identification data time extraction unit 810 outputs the acquired video file identification data and time data to the video file search unit 820.

  Video file identification data and time data are input from the video file identification data time extraction unit 810 to the video file search unit 820. The video file search unit 820 searches for video files based on the video file identification data and the time data. For example, when the keyword A is an index (search keyword), the video file search unit 820 searches for a video file associated with the time data t11 (see FIG. 5).

  The video file search unit 820 displays the video data included in the searched video file based on the time data. As a result, the video file search unit 820 can allow the failure handling worker to view the video in which the failure handling work is taken in a short time. Here, the video file search unit 820 may skip and playback the video for each chapter based on the time data.

  Note that the video file search unit 820 may display all the chapters of the video data based only on the video file identification data (for example, video information name) when the playback time of the video is less than the predetermined time. .

The time chart creation device 900 includes a video file identification data extraction unit 910, a keyword / time extraction unit 920, and a time chart creation unit 930.
Information indicating a keyword as an index is input to the video file identification data extraction unit 910 from the search keyword input device 1000. The video file identification data extraction unit 910 acquires the video file identification data (see FIG. 5) associated with the keyword as an index from the index database device 700. The video file identification data extraction unit 910 outputs the acquired video file identification data to the keyword / time extraction unit 920.

  The keyword / time extraction unit 920 receives the video file identification data from the video file identification data extraction unit 910. The keyword / time extraction unit 920 acquires a list of keywords associated with the video file identification data from the index database device 700 in which the extracted keywords are registered. For example, the keyword / time extraction unit 920 acquires the keyword A and the keyword B (see FIG. 5) associated with the video file identification data F1 from the index database device 700.

  The keyword / time extraction unit 920 acquires a list of time data associated with the video file identification data for each keyword from the index / database apparatus 700 in which the extracted time data is registered. For example, the keyword / time extraction unit 920 acquires time data t11 (see FIG. 5) associated with the video file identification data F1 from the index database apparatus 700 in association with the keyword A. Further, the keyword / time extraction unit 920 acquires time data t12 (see FIG. 5) associated with the video file identification data F1 from the index database apparatus 700 in association with the keyword B. The keyword / time extracting unit 920 outputs information indicating the acquired keyword list and the acquired time data list to the time chart creating unit 930.

  Information indicating a list of acquired keywords and a list of acquired time data are input from the keyword / time extraction unit 920 to the time chart creation unit 930. The time chart creation unit 930 creates a time chart based on the information indicating the acquired keyword and the acquired time data. This time chart may be, for example, a chart showing the order of work corresponding to failures on a time axis. That is, the time chart creation unit 930 may arrange and display a list of acquired keywords (for example, work item names) in order of time of the acquired time data.

Next, an example of the operation procedure of the index creation device will be described.
FIG. 6 is a flowchart illustrating an example of an operation procedure of the index creating apparatus.
(Step S <b> 1) The voice recognition unit 610 of the index creation device 600 acquires video file identification data from the video file database device 500. The voice recognition unit 610 accesses the video file / database apparatus 500 and acquires voice data from the video file indicated by the video file identification data.

(Step S2) The voice recognition unit 610 generates character string data from the acquired voice data by voice recognition.
(Step S <b> 3) The voice recognition unit 610 registers the generated character string data in the character string data storage unit 620.

  (Step S <b> 4) The keyword extraction unit 630 extracts a keyword registered in the keyword / database device 300 from the character string data registered in the character string data storage unit 620.

  (Step S <b> 5) The keyword extraction unit 630 registers the video file identification data registered in the video file / database device 500 and the extracted keyword in the video file identification data / keyword storage unit 640 in association with each other.

  (Step S6) The time data extraction unit 650 extracts keywords from the video file (see FIG. 3) indicated by the video file identification data (see FIG. 4) registered in the video file identification data / keyword storage unit 640. The time data associated with the voice data is extracted.

  (Step S7) The index creation device 600 associates the extracted keyword with the extracted time data (see FIG. 5), and registers them in the index database device 700.

  As described above, the index creating apparatus 600 according to the embodiment has a video file (for example, FIG. 3) including video data and audio data associated with time data (for example, shooting time data) and time data. A voice recognition unit 610 that acquires voice data from the acquired voice data and generates character string data by voice recognition from the acquired voice data, and a keyword extraction unit that extracts a keyword (for example, see FIG. 4) from the character string data 630, the time data corresponding to the voice data that is the basis of the character string data from which the keyword was extracted, and extracted from the video file as a time data extraction unit 650 and an index for searching the video data The keywords are associated with the extracted time data (see, for example, FIG. 5), and the index database It provided with indexing unit 660 to register the scan unit 700, a.

  In addition, the index creation system of the embodiment acquires audio data from a video file including video data and audio data associated with time data, and time data, and performs audio recognition from the acquired audio data. A voice recognition unit 610 that generates character string data, a keyword extraction unit 630 that extracts a keyword from character string data, and time data corresponding to the voice data that is the basis of the character string data from which the keyword is extracted, A time data extraction unit 650 that extracts from a file, a keyword extracted as an index for searching video data, and an extracted time data are associated with each other, and an index creation unit 660 that registers them in the index database device 700. And comprising.

  Further, the index creation method of the embodiment is an index creation method in the index creation device 600 (see FIG. 1), in which the voice recognition unit 610 includes video data and voice data associated with each other based on time data, Audio data is acquired from a video file including time data, character string data is generated from the acquired audio data by voice recognition, and a keyword extraction unit 630 extracts keywords from the character string data; A step in which the time data extraction unit 650 extracts time data corresponding to the audio data that is the basis of the character string data from which the keyword has been extracted from the video file; and the index creation unit 660 searches for the video data. Keywords extracted as an index of, extracted time data, Association, and a step of indexing database device 700.

  Further, the index creation program of the embodiment includes a video file including video data and audio data associated with the computer of the index creation device 600 (see FIG. 1) based on time data, and time data. Acquire voice data, generate character string data by voice recognition from the acquired voice data, extract a keyword from the character string data, and voice data that is the basis of the character string data from which the keyword was extracted The procedure for extracting the corresponding time data from the video file, the keyword extracted as an index for searching the video data, and the extracted time data are associated with each other and registered in the index database apparatus 700. And execute the procedure.

  With this configuration, the voice recognition unit 610 generates character string data from the acquired voice data by voice recognition. The keyword extraction unit 630 extracts keywords from character string data. That is, the keyword extraction unit 630 can extract keywords as indexes with a small amount of processing and cost compared to a case where keywords are extracted by video analysis from a video file with a large amount of data. In addition, the keyword extraction unit 630 can extract a keyword as an index in a short time compared to the case where the failure handling worker browses the video file from the beginning to the end.

  As a result, the index creation apparatus, index creation system, index creation method, and index creation program of the embodiment can easily incorporate the video into the learning material for supplementing the failure handling experience. Here, the index creation apparatus, index creation system, index creation method, and index creation program of the embodiment do not need to edit the captured video.

The keyword extraction unit 630 may extract a predetermined keyword (for example, see FIG. 2) from the character string data.
Thereby, the index creation apparatus, index creation system, index creation method, and index creation program of the embodiment do not extract keywords (extra keywords) that are not necessary for the learning material.

The keyword extraction unit 630 may extract a work item name as a keyword from character string data generated from audio data associated with video data in which a work corresponding to the work item name is captured.
As a result, the index creation apparatus, index creation system, index creation method, and index creation program of the embodiment can easily incorporate the video of the work taken into the learning material for supplementing the experience of handling the failure. it can.

The index creation system of the embodiment further includes a video file search unit 820 that searches for video data based on the extracted keyword and the extracted time data.
With this configuration, the video file search unit 820 searches for video data based on the extracted keyword and the extracted time data.
Thereby, the index creation system of an embodiment can display a picture based on searched picture data. Further, the index creation system according to the embodiment allows the failure handling worker to easily grasp the status of the failure handling work performed in the past. In addition, since the index creation system of the embodiment extracts keywords (for example, work item names) by voice recognition and converts them into character string data (text data), the database administrator browses the video file from the beginning to the end. Even without this, it is possible to create a database that records work for handling failures in a short time.

The index creation system of the embodiment further includes a time chart creation unit 930 that creates a time chart based on the extracted keywords and the extracted time data.
With this configuration, the time chart creation unit 930 creates a time chart based on the extracted keywords and the extracted time data.
As a result, the index creation system of the embodiment can make it possible for the failure handling worker to easily grasp the procedure of the failure countermeasure work by the time chart. Further, the index creation system according to the embodiment can allow the failure handling worker to grasp the progress of the work even if the failure handling worker does not browse the video file from the beginning to the end.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  For example, the index creation process described above may be executed by a cloud system. At least a part of each device included in the index creation system of the above embodiment may constitute a cloud system.

  The program for realizing the apparatus and system described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed, thereby executing the execution process. You may go. Here, the “computer system” may include an OS and hardware such as peripheral devices.

  Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

Further, the “computer-readable recording medium” refers to a volatile memory (for example, DRAM (Dynamic) in a computer system serving as a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. Random Access Memory)) that holds a program for a certain period of time is also included.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above.
Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 100 ... Keyword / video file input device, 200 ... Keyword registration device, 300 ... Keyword / database device, 400 ... Video file registration device, 500 ... Video file / database device, 600 ... Index creation device, 610 ... Voice recognition part, 620 ... Character string data storage unit, 630 ... Keyword extraction unit, 640 ... Video file identification data / keyword storage unit, 650 ... Time data extraction unit, 660 ... Index creation unit, 700 ... Index database unit, 800 ... Video file search device 810 ... Video file identification data time extraction unit, 820 ... Video file search unit, 900 ... Time chart creation device, 910 ... Video file identification data extraction unit, 920 ... Keyword / time extraction unit, 930 ... Time chart creation unit, 1000 Search keyword input device

Claims (8)

Audio that acquires the audio data from a video file including video data and audio data associated with the time data and the time data, and generates character string data from the acquired audio data by audio recognition A recognition unit;
A keyword extraction unit for extracting a keyword from the character string data;
A time data extraction unit that extracts the time data corresponding to the audio data that is the basis of the character string data from which the keyword has been extracted from the video file;
An index creating unit that registers the keyword extracted as an index for searching the video data and the extracted time data in association with each other in a database device;
An index creation device comprising:   The index creating apparatus according to claim 1, wherein the keyword extracting unit extracts the predetermined keyword from the character string data.   The keyword extraction unit extracts the work item name as the keyword from the character string data generated from the audio data associated with the video data in which the work corresponding to the work item name is photographed. The index creation device according to claim 1 or 2. Audio that acquires the audio data from a video file including video data and audio data associated with the time data and the time data, and generates character string data from the acquired audio data by audio recognition A recognition unit;
A keyword extraction unit for extracting a keyword from the character string data;
A time data extraction unit that extracts the time data corresponding to the audio data that is the basis of the character string data from which the keyword has been extracted from the video file;
An index creating unit that registers the keyword extracted as an index for searching the video data and the extracted time data in association with each other in a database device;
An index creation system comprising: The index creation system according to claim 4, further comprising: a video file search unit that searches the video data based on the extracted keyword and the extracted time data. The index creation system according to claim 4 or 5, further comprising: a time chart creation unit that creates a time chart based on the extracted keyword and the extracted time data. An index creation method in an index creation device,
A voice recognition unit acquires the voice data from a video file including video data and voice data associated with each other based on time data, and the time data, and performs character recognition by voice recognition from the acquired voice data. Generating data; and
A keyword extracting unit extracting a keyword from the character string data;
A time data extraction unit that extracts the time data corresponding to the audio data that is the basis of the character string data from which the keyword has been extracted from the video file;
An index creation unit associating the keyword extracted as an index for searching the video data with the extracted time data and registering the same in a database device;
An index creation method characterized by comprising: On the computer,
A procedure for acquiring the audio data from a video file including the video data and audio data associated with the time data and the time data, and generating character string data by audio recognition from the acquired audio data When,
A procedure for extracting a keyword from the character string data;
A procedure for extracting the time data corresponding to the audio data that is the basis of the character string data from which the keyword has been extracted from the video file;
A procedure for registering the keyword extracted as an index for searching the video data and the extracted time data in association with each other in a database device;
Indexing program for running.

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