WO2022202955A1

WO2022202955A1 - Meeting recording processing device and security assurance method for meeting recording

Info

Publication number: WO2022202955A1
Application number: PCT/JP2022/013807
Authority: WO
Inventors: 貴之福谷
Original assignee: 日本電気株式会社
Priority date: 2021-03-26
Filing date: 2022-03-24
Publication date: 2022-09-29
Also published as: JPWO2022202955A1

Abstract

The present invention is a meeting recording processing device comprising: a table storage means that stores, in advance, a policy setting table for setting information about protection targets for information of meeting recording data for each meeting, and a rights management table for setting the viewable period of the meeting recording data that one or multiple registrants can view; and an image control means that, according to the protection targets in the policy setting table stored in the table storage means, executes a masking process on the meeting recording data generated by an imaging device, generates meeting recording data after the masking process, and permits or forbids the one or multiple registrants to read the meeting recording data after the mask process, according to the viewable period in the rights management table.

Description

CONFERENCE RECORDING PROCESSING DEVICE AND SECURITY ENSUREMENT METHOD IN CONFERENCE RECORDING

The present invention relates to a conference recording processing device and a method of ensuring security in conference recording, which can enhance the security of a Web conference held remotely via the Internet.

In recent years, as digitization advances, working styles in physically distant locations, such as telework and remote work, have increased rapidly, and along with this, the number of web conferences using web conferencing applications has increased.

Many applications having a recording function are used in Web conferences. This application has merits such as being able to share the conference record with non-participants at a later date and confirming the contents of the conference.
On the other hand, with this application, if you want to partially delete the slides related to corporate compliance displayed at the meeting, or the video recordings with personal information, you need to re-edit them, which is troublesome. There's a problem.

Patent Documents 1 and 2 are known as techniques related to the recording function of such a Web conference.
The recording apparatus disclosed in Patent Literature 1 includes acquisition means for acquiring viewing authority for each type of image included in media data received by a receiving means based on authority information specified for each meeting; and specifying means for specifying, for each meeting, a masked area of an image to be displayed on the display unit based on the obtained viewing authority.
In such a recording device, the data of the image displayed on the display unit of the conference device is recorded during the teleconference in a manner corresponding to the viewing authority of the viewer so that the data can be viewed after the teleconference ends.

Further, in the image processing apparatus disclosed in Patent Document 2, when an area to be hidden is selected by an operating means such as a mouse while viewing a photographed image displayed on a display, etc., the coordinates, shape, and characteristics of the selected area are displayed. It is stored in the feature storage means as feature information.
After that, image conversion means configured by a CPU (Central Processing Unit) or the like detects a concealment area in the captured image based on the feature information stored in the feature storage means, and executes concealment processing.

In such an image processing apparatus, in an image communication terminal such as a videophone, only the eyes are hidden/the state of the room is hidden from the other party/the face of a person who cannot be displayed or the license plate of the vehicle is hidden. and other image processing, and there is an advantage that it is not necessary to edit each frame.

JP 2014-197813 A JP-A-2004-56488

However, with the recording device shown in Patent Document 1, since the operator must manually specify the portions to be masked in advance, it is difficult to respond flexibly to real-time changes during the meeting. In addition, there is a problem that data leakage occurs when streaming data before masking is leaked.

In addition, the image processing apparatus disclosed in Patent Document 2 requires a prior operation such as selecting an area to be hidden using an operating means such as a mouse, which makes the operation cumbersome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and provides a simple method using a policy setting table and an authority management table that define objects to be protected. It is possible to prevent the careless leakage of recordings. Accordingly, a conference recording processing apparatus and a method for ensuring security in recording a conference are provided, which can enhance security in a Web conference or the like.

In order to solve the above problems, the present invention proposes the following means.
In the conference recording processing apparatus according to the first aspect of the present invention, a policy setting table for setting, in advance, information to be protected in the information included in the conference recording data of each conference, and a policy setting table that can be viewed by one or more registrants a table storage means for storing an authority management table for setting a perusal period of the conference recorded data; and the conference generated by the imaging device according to the protection object of the policy setting table stored in the table storage means. masking recorded data to generate masked recorded meeting data, and masking the masked meeting recording for the one or more registrants in accordance with the viewable period of the authority management table; and image control means for permitting or prohibiting viewing of data.

In the conference recording processing method for conference recording according to the second aspect of the present invention, a policy setting table for setting information to be protected in the information included in the conference recording data of each conference is set in advance, and one or more registrants storing an authority management table for setting a viewable period of the viewable recorded meeting data, and masking the recorded meeting data in accordance with the protection object of the stored policy setting table; and permits or prohibits the one or more registrants from viewing the masked conference recorded data in accordance with the permissible viewing period of the authority management table.

According to the present invention, it is possible to easily mask conference recordings and prevent inadvertent leakage of conference recordings by simple operations using a policy setting table and an authority management table that define protection targets. It is possible to enhance the security of the web conference.

1 is a schematic configuration diagram showing the minimum configuration of a conference recording processing apparatus according to the present invention; FIG. 1 is a system configuration diagram showing a conference recording processing device according to an embodiment; FIG. FIG. 10 is a diagram showing a policy setting table; FIG. It is a figure which shows an authority management table. FIG. 10 is a diagram illustrating an example of normal conference recording processing; It is a figure which shows an example of a process in the case of performing a mask process. It is a figure which shows the mask process which concerns on a modification.

A minimum configuration of a conference recording processing apparatus 10 according to the present invention will be described with reference to FIG.
This conference recording processing device 10 has table storage means 1 and image control means 2 .

The table storage means 1 predetermines the object to be protected in each meeting as a policy setting table A1, and predetermines the viewable period of conference recordings that can be viewed by registrants as an authority management table A2. The protection target indicates information to be masked among the information included in the recording data of the conference recording. Information to be masked includes, for example, a specific person's image, a specific person's voice, an image displayed in a meeting, and a predetermined range on the image. Registrants include, for example, the host who organizes the conference, participants, viewers of conference recordings, and the like.
Various data settings in the policy setting table A1 and the authority management table A2 in the table storage means 1 are executed by the authority of the administrator B. FIG. The administrator B has authority required for the setting processing of the policy setting table A1 and the authority management table A2. Administrator B may, for example, be the host of the conference.

The image control means 2 masks the recording of the meeting taken by the imaging device 3 according to the protection target of the policy setting table A1 stored in the table storage means 1, and the registrant according to the viewable period of the authority management table A2. to allow/prohibit viewing of masked meeting recordings.

In the conference recording processing apparatus 10 as described above, first, in the table storage means 1, a policy setting table A1 for setting a protection target in each conference and a conference recording that can be browsed by registrants are stored in advance. It stores an authority management table A2 for setting a period.
Thereafter, the image control means 2 masks the conference recording according to the protection object of the policy setting table A1 stored in the table storage means 1, and masks the registrants according to the viewable period of the authority management table A2. Allow/prevent viewing of meeting recordings.

As a result, the conference recording processing apparatus 10 can easily mask the conference recording by simple operations using the policy setting table A1 and the authority management table A2 that define the objects to be protected. Careless leakage can be prevented. As a result, it is possible to enhance security in a conference such as a web conference.

(embodiment)
Embodiments of the present invention will be described with reference to FIGS. 2 to 6. FIG.
The conference recording processing apparatus GA shown in the embodiment has table storage means G1 and image control means G2, as shown in FIG.

The table storage means G1 predetermines a policy setting table 500 for protection targets in each meeting, and predetermines an authority management table 510 for viewing periods of conference recordings that can be viewed by registrants. This will be described later with reference to FIGS. 3 and 4. FIG. Various types of data are stored in the policy setting table 500 and the authority management table 510 in the table storage means G1 under the authority of the administrator 30 and/or the conference host H. FIG.

The image control means G2 masks meeting recordings (including photographs and moving images) taken by the imaging devices 20 to 22 according to the protection target of the policy setting table 500 stored in the table storage means G1, and manages authority. The viewers 40 registered according to the viewable period of the table 510 are permitted/prohibited from viewing the masked conference recording.

FIG. 3 is a diagram showing an example of the policy setting table 500. As shown in FIG. As shown in FIG. 3, the policy setting table 500 includes a conference name 50 (X conference in this example), conference participants 51 (Mr. A policy consisting of a form of recording to be saved 52, a protection setting 53, and the like is set. The conference name 50 is information identifying each of a plurality of conferences. The conference participants 51 are also called registrants.
Recording modes 52 to be saved include original recording without mask processing, masked recording with mask processing (protection recording 1 and protection recording 2 in this example), and the like. As the protection setting 53, the face and voice of a specific person, and the location and character position of slide information are set as targets for mask processing.
The type of recording 52 indicates the type of conference recording with different protection settings 53 . The protection setting 53 indicates information to be hidden or covered among image information and audio information included in the recorded data. In other words, the protection setting 53 indicates information to be concealed from viewers among image information and audio information included in the recorded data. As the protection settings 53, for example, a specific person's image, a specific person's voice, a slide page displayed on the screen, a position range within the slide, and the like may be designated.
Although the policy setting table 500 in FIG. 3 shows information when the conference name 50 is the X conference, it is not limited to this example. The policy setting table 500 may include information on other conference names. Alternatively, the policy setting table 500 may be generated for each meeting.
Although the policy setting table 500 of FIG. 3 has information of the conference participants 51, it is not limited to this example. The policy setting table 500 may hold information on the protection setting 53 and identification information (recording form 52) of the recorded data corresponding to the protection setting 53 for a predetermined conference. In this way, the policy setting table 500 is set with the meeting name, recording identification information, and protection target information. At least one of an image of a specific person's face, a specific person's voice, and a predetermined slide position range is set as protection target information stored in the policy setting table 500 .

FIG. 4 is a diagram showing an example of the authority management table 510. As shown in FIG. In the authority management table 510, as shown in FIG. 4, a recorded conference viewing period 62 is set for each authority 61 with the conference participants 60 as registrants.
In the example of FIG. 4, Mr. A, Mr. B, Mr. C, and others (ANY) are set as the conference participants 60 . The authority 61 indicates the recording authority that the conference participants 60 can view. In this example, "A can view protected recording 1" and "B can view protected recording 2". , "Mr. C can view the normal recording without mask", and "Other people cannot view the recording". In other words, permissions 61 indicate the types of recordings 52 that conference participants 60 can view. The recording mode 52 is set in the policy setting table 500 in FIG. 3, for example. In this way, in the authority management table 510, for each registrant, a perusal period of recorded conference data after masking according to information to be protected is set.
Note that the authority management table 510 of FIG. 4 has, as the authority 61, information of the conference participants 60 who are not permitted to view, in addition to the information of the conference participants 60 who have the authority to view the normal recording and the protected videos 1 and 2. . However, it is not limited to this example. The authority management table 510 does not have to hold information on the conference participants 60 who are not viewable. In this case, for example, conference participants 60 who are not registered in the authority management table 510 cannot browse.
The authority management table 510 of FIG. 4 has information on conference participants 60, authorities 61, and permissible viewing periods 62, but may also have conference names. Alternatively, the authority management table 510 may be generated for each conference.

In addition, the imaging devices 20 to 22 may be provided with dedicated cameras at the place of the meeting, or may use cameras integrally built into terminals such as PCs (Personal Computers) 400, 410 and tablets 420 that serve as display devices. can be

Next, the image control means G2 of the conference recording processor GA will be described with reference to FIG. The image control means G2 incorporates components such as the web conference application 110, the data mask mechanism 120, the data deletion mechanism 130, the transfer processing mechanism 140, the authentication mechanism 150, the policy analysis mechanism 160, and the web conference client 450 into the host computer 100. equip.
Although not shown, the host computer 100 includes a CPU (Central Processing Unit), an IF (Interface), a communication module, a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), and the like. It is a computer with A communication module is hardware that controls communication with other devices. The CPU of the host computer 100 is provided with a Web conference application 110, a data mask mechanism 120, a data deletion mechanism 130, a transfer processing mechanism 140, an authentication mechanism 150, and a policy analysis mechanism 160 by executing stored programs.
The host computer 100 also has a recorded data storage unit 200 and an authentication data storage unit 300 . The recorded data storage unit 200 records, in real time, conference recording data captured by the imaging devices 20 to 22, and stores masked conference recording data obtained by masking the conference recording data. The authentication data storage unit 300 stores ID (Identification) data and the like regarding conference participants (A to D) and viewers 40 .

Note that the recorded data storage unit 200 and the authentication data storage unit 300 are set in, for example, an internal area of the host computer 100 or an externally attached external area.
Further, in the following description, the recorded data recorded in the recorded data storage unit 200 is indicated by reference numeral 200A, and the authentication data recorded in the authentication data storage unit 300 is indicated by reference numeral 300A. In addition, the authentication data 300A includes a public document such as a driver's license that identifies an individual, and passwords set by the participants (Mr. A to D) and the reader 40 corresponding to the official document. The authentication data 300A may hold image data of official documents, electronic signatures, and the like. The authentication data 300A holds, for example, each registrant (conference participant, viewer, etc.) in association with an ID and a set password.

When receiving a notification from the conference host H, the Web conference application 110 captures the conference recording taken by the target imaging devices 20 to 22 into the recorded data storage unit 200 of the host computer 100 and stores it as image data 200A. .
The data masking mechanism 120 partially masks the corresponding portion of the recorded data 200A based on the analysis result of the policy analyzing mechanism 160 (described later) referring to the policy setting table 500, thereby masking the data of the corresponding portion. Browsing is prohibited.
The data masking mechanism 120 uses artificial intelligence (AI) technology such as voice recognition, image recognition, and natural language processing to recognize the faces and voices of pre-registered conference participants from captured images. By doing so, mask processing is applied to the corresponding portion that will be the policy in the recording.

The data deletion mechanism 130 deletes the video data for which the viewable period 62 (see FIG. 4) of the authority management table 510 has ended. The data deletion mechanism 130 deletes the recorded data of each conference recording stored in the recorded data storage unit 200 based on the viewable period 62 .
The transfer processing mechanism 140 performs masking processing and decoding on the recorded data according to the viewing authority (policy setting table 500 and authority management table 510) shown in FIGS. Then, the recorded data is transferred to the viewer 40 who requested the data. For example, the transfer processing mechanism 140 encrypts the recorded data and transmits the encrypted recorded data to the terminal device of the viewer 40 .

The authentication mechanism 150 refers to the authority management table 510 (see FIG. 4) through the web conference client 450 when the viewer 40 requests viewing of the recorded meeting, and also refers to the authentication stored in the authentication data storage unit 300. Authentication is performed based on the data 300A, and the authority of the viewer 40 is confirmed.
The policy analysis mechanism 160 refers to the policy setting table 500 (see FIG. 3), notifies the data mask mechanism 120 of the masked portion of the recorded data, and puts the data mask mechanism 120 on standby for mask processing.

The Web conference client 450 includes conference terminals (

PCs

400, 410 and tablet 420) and their imaging devices 20 to 22, and also has a function as a server for transmitting data to the host computer 100. FIG.
The Web conference client 450 uses a scrambled data decoding format that is difficult to restore even if it is intercepted from the outside.
The web conference client 450 is, for example, a computer having a configuration such as a CPU, IF, communication module, ROM, RAM, and HDD. The CPU of the web conference client 450 has the functions of the web conference client 450 by executing a stored program.

<<Explanation of operation of the embodiment>>
Next, the operation of the conference recording processing device GA shown in FIG. 2 will be described in order.
In the conference recording processing device GA, first, the conference host H sends the web conference application 110 in the host computer 100 via the conference terminals (

PCs

400, 410 and tablet 420) equipped with the web conference client 450, "Web conference Operation starts by setting "start". That is, the conference host H instructs the web conference application 110 of the host computer 100 to "start the web conference" by operating the conference terminal.

At that time, the conference host H sets the content of the main conference to be recorded, and issues an instruction on the premise that the content of the conference will be streamed and distributed as recorded conference data at a later date. That is, the conference host H instructs the Web conference application 110 to set the recording of the conference by operating the conference terminal.
At this time, when setting up the Web conference, the conference host H sets "Web conference start" from the Web conference client 450 to the Web conference application 110, and at the same time, registers it in the policy setting table 500 and the authority management table 510. Make settings for "participation registration" for conference participants who will be The conference host H registers at least one or more participants in the web conference application 110 by operating the conference terminal.

Then, the policy analysis mechanism 160 in the host computer 100 receives the setting instruction of “Web conference start” from the Web conference client 450, refers to the policy setting table 500, and uses the data mask mechanism to mask the conference recording data. 120 and stand by for processing. The policy analysis mechanism 160 refers to the policy setting table 500 based on the conference participant information and acquires one or more protection settings 53 . The policy analyzing mechanism 160 notifies the data masking mechanism 120 of information to be masked indicated by each protection setting 53 .
Here, as described above, the policy setting table 500 includes descriptions of specific voices, slides (locations, characters), persons, and the like. For this reason, the data masking mechanism 120 is equipped with AI technology functions such as voice recognition technology, image recognition technology, natural language processing, etc., in order to apply this policy and extract the relevant portion of the mask processing from the meeting recording. there is

Then, the host computer 100 that has undergone the preparation stage as described above holds a Web conference at a predetermined conference holding time.
In parallel with this, the participants (Mr. A and Ms. B in FIG. 2) connect to the host computer 100 from the conference terminals (

PCs

400, 410 and tablet 420) having the Web conference client 450, and participate in the established conference. participate. A participant transitions to a participation state by operating the Web conference client 450 activated on the conference terminal.
Although the

PCs

400, 410 and tablet 420 are used as terminals for participating in the conference, any device that can participate in the conference via the Web conference application 110, such as a mobile phone or a terminal that can be viewed with a Web browser, can be used. The types of terminals participating in the conference are not limited.

After that, the conference host H who has received the conference notifies the Web conference application 110 in the host computer 100 of a recording start instruction from the conference terminals 400 to 420 . The conference host H instructs the Web conference application 110 to start recording by operating the Web conference client 450 .
The Web conference application 110 that has received the notification starts recording the recorded data 200A in the recorded data storage unit 200 of the peripheral device such as the memory storage area of the host computer 100 and the external storage.
In addition, when the Web conference application 110 receives a recording end instruction from the conference host H or a participant during the Web conference or at the end of the Web conference, after finishing the recording of the Web conference, the data masking mechanism 120 masking and jamming processing of the recorded data 200A.
Note that the data masking mechanism 120 may perform masking and jamming processing on the recorded data during the web conference or at the end of the web conference.
The data masking mechanism 120 refers to the policy setting table 500 and acquires one or more recording types 52 of the target conference name 50 and protection settings 53 for the recording types 52 . The data masking mechanism 120 acquires masking target information indicated by the protection settings 53 for each of the recording modes 52 . The protection setting 53 includes, for example, image information of a specific person's face, specific person's voice information, and image information of a predetermined coordinate range on a predetermined page or slide displayed in a conference.
The data masking mechanism 120 recognizes facial images of pre-registered conference participants or voices of conference participants from recorded data by at least one of artificial intelligence techniques such as speech recognition, image recognition, and natural language processing. do. The data masking mechanism 120 analyzes recorded conference data using functions of AI technology such as voice recognition technology, image recognition technology, and natural language processing. The data masking mechanism 120 identifies person image information, audio information, slide image information, and the like included in the recorded data based on the analysis result. The data masking mechanism 120 identifies image information and audio information to be masked from the identified information.
For example, the feature amount of the face image of each person is stored in advance in the host computer 100 . The data masking mechanism 120 analyzes the image information of each person included in the recorded data, and extracts the feature amount of each person's face. The data masking mechanism 120 identifies the person based on the extracted facial feature amount of each person and the prestored facial feature amount of each person, and specifies the image of the person specified by the protection setting 53 .
For example, the feature amount of each person's voice is stored in advance in the host computer 100 . For example, the data masking mechanism 120 analyzes the voice information of each person included in the recorded data, and extracts the feature amount of each person's voice. The data masking mechanism 120 identifies the person based on the extracted feature amount of the voice of each person and the prestored feature amount of the voice of each person, and determines the voice of the person specified by the protection setting 53 .
Further, for example, the data masking mechanism 120 identifies the image of the slide of the predetermined page designated by the protection setting 53 and the image of the position range on the slide among the image information of the recorded data.
The data masking mechanism 120 deletes the image or audio information to be masked specified as the protection setting 53 or replaces it with other information. For example, the data masking mechanism 120 replaces image information specified as a mask target with predetermined image information. The data masking mechanism 120 deletes the audio information specified as the masking target. Alternatively, the data masking mechanism 120 may scramble the specified image information or audio information. As a result, data processing (masking) is performed so that the information to be masked in the recorded data cannot be viewed by the viewer.

Then, the data masking mechanism 120 causes the recorded data storage unit 200 to store the recorded data 200A after the masking and jamming processing as masked conference recording. After that, when the masked meeting recording is stored in the recorded data storage unit 200, the viewer 40 sends the recording to the Web conference application 110 through the terminal (

PC

400, 410, tablet 420, etc.) equipped with the Web conference client 450. Streaming playback of data 200A can be requested.
Then, when the viewer 40 issues a conference image viewing request, the Web conference client 450 refers to the authority management table 510 through the authentication mechanism 150 , and based on the authentication data 300 A in the authentication data storage unit 300 . , and thereby the authority of the viewer 40 is confirmed.
The Web conference client 450 outputs to the host computer 100 a viewing request (viewing application) for the conference image (recorded data of the conference recording). The viewing request includes an ID that identifies the requesting viewer 40 and authentication information. The requesting viewer 40 may be, for example, a conference host, a conference participant, a person not participating in the conference, or the like.
The authentication mechanism 150 of the host computer refers to the authority management table 510 based on the received browsing request, and determines whether or not the browseable period applies. Specifically, the authentication mechanism 150 refers to the authority management table 510, acquires the permissible perusal period of the viewer, and determines whether or not it is included in the permissible perusal period. If it is included in the perusal period, the authentication mechanism 150 refers to the authentication data 300A based on the authentication information included in the perusal request, and performs the perusal authentication process. If the authentication succeeds, the authentication mechanism 150 determines that the viewer can view the recorded data.
Note that, in the above example, the authentication mechanism 150 performs the authentication process for the viewer when the viewer is included in the permissible viewing period. However, it is not limited to this example. The authentication mechanism 150 may determine whether or not it is included in the perusal period when the authentication is successful.

Furthermore, the authenticated Web conference client 450 can partially change the masking process generated by the masking mechanism 120 according to the authority of the viewer 40 .
Specifically, in the Web conference client 450, masking processing is performed for each participant (indicated by reference numeral 51) set in the policy setting table 500 (see FIG. 3), and the authority management table 510 (see FIG. 4) is masked. Based on the viewing authority of the participant (indicated by reference numeral 60) set in , decoding via the transfer processing mechanism 140 can be performed for a specific viewer 40, and the recorded data of the masked conference recording can be transferred. do.

FIG. 5A is a diagram illustrating an example of normal recording processing. For example, FIG. 5A shows an example in which, in normal recording, conference recording data D3 is created by subjecting conference recording recording data D1 to normal noise composite data processing D2. In this example, since mask processing is not performed on the recording data D3 of the created conference recording, the conference participants, slides (locations, characters), etc. that should be hidden can be viewed, and security is not maintained. Recorded data D3 of conference recording in FIG. 5A shows recorded data (normal recording, original) when masking processing is not performed. For example, in the case of the policy setting table 500 in FIG. 3, the recorded data is viewable by the participant C.
FIG. 5B is a diagram illustrating an example of processing when mask processing is performed. When mask processing is performed, according to FIG. 5B, noise composite data processing D5 including mask processing is performed on the recording data D4 of the conference recording, so that specific conference participants and slides (places, characters) are masked. Recorded data D6 of the recorded conference is created. An example is shown in which security is greatly improved by performing masking processing based on the protection settings 53 .
Note that FIGS. 5A and 5B illustrate a case where noise compound data processing is performed on photographed image data generated by an imaging device. However, it is not limited to this example. Noise composite data processing may be omitted.

The masking processing in the transfer processing mechanism 140 is performed by transferring one stream after decoding processing using a combination of encrypted code and non-encrypted code, transferring the field to be scrambled by detecting the field to be scrambled by the scrambler, and so on. Any technique may be used as long as the field can be restored and transferred. Therefore, the transfer processing in the transfer processing mechanism 140 is not bound by a predetermined transfer method.
In addition, the data deletion mechanism 130 under the Web conference application 110 makes it possible to delete the recorded data 200A when the viewing period of the authority management table 510 has expired.

In the conference recording processing apparatus GA of the present embodiment described in detail above, first, in the table storage means G1, the information to be protected in the information contained in the conference recording data of each conference is stored as the policy setting table 500 in advance. At the same time, an authority management table 510 is defined for the viewable period of recorded conference data that can be viewed by one or more registrants.
After that, the host computer 100 serving as the image control means G2 performs mask processing on the recorded conference data generated by the imaging device according to the protection target of the policy setting table 500 stored in the table storage means G1. Generate conference recording data after mask processing. In addition, the host computer 100 permits or prohibits one or more registrants from viewing the masked conference recording according to the permissible viewing period of the authority management table 510 .

As a result, in the conference recording processing apparatus GA, it is possible to easily mask conference recordings by simple operations using the policy setting table 500 and the authority management table 510 that define the objects to be protected, and to mask the conference recordings. Inadvertent leakage can be prevented, thereby enhancing security in a conference such as a web conference.
The conference recording processing apparatus GA can hold in advance a plurality of patterns of protection target settings with different confidential target information. In addition, the conference recording processing device GA can hold a person who can view and a viewing period for a plurality of patterns of recorded data with different information to be concealed. In this way, by storing the policy setting table 500 and the authority management table 510 in advance, it is possible to generate a plurality of patterns of recorded data with different information to be concealed, and at the same time, it is possible to generate viewing rights and viewing periods for the plurality of patterns of recorded data. can be controlled. In addition, the object of concealment and the degree of concealment can be varied according to the recorded data.
In addition, by specifying information to be concealed as protection settings in advance, each recorded data can be generated according to the protection settings without requiring manual editing of the recorded data after the recording data is generated. Furthermore, viewers and viewing periods for recorded data according to protection settings can be specified in advance in correspondence with protection settings.

In addition, in the conference recording processing device GA, it is possible to prevent information leakage from recorded data and protect compliance and personal information by displaying only the information according to the authority of the user in the Web conference. .
Further, in the conference recording processing apparatus GA, the host computer 100 can automatically generate recorded data with privacy protection without the need for editing, and can delete the recorded data at an appropriate timing. In other words, the conference recording processing apparatus GA can delete recorded data for which the viewable time limit has passed by referring to the authority management table 510 set in advance.
Further, in the conference recording processing apparatus GA, operation rules of the Web conference are set in the policy setting table 500 in advance as a policy. This makes it possible to appropriately change information that can be disclosed and information that cannot be disclosed even in the same meeting, based on user authority (administrator authority).

(Other embodiments)
In the above embodiment, the host computer 100, which is the image control means G2, allows the participants 60 (see FIG. 4) set in the authority management table 510 to view the conference recording. However, it is not limited to this. An extension in which the host computer 100 performs mask processing according to the protection target of the policy setting table 500 on the conference image within a predetermined time (delay time), and then reproduces and outputs the conference image almost in real time. A function may be provided.

Specifically, in the host computer 100, as shown in FIG. 6, noise composite data processing D8 including mask processing is performed on the recording data D7 of the conference recording, and after a delay time associated with this processing, specific conference participants , the recorded data D9 of the conference recording in which the slides (places, characters) are masked may be output and reproduced.
For example, the host computer 100 performs jamming processing and noise compositing processing on the captured image data to generate recorded data D8 that is not masked. The host computer 100 performs noise composition processing including jamming processing and masking processing on the photographed image data in parallel with the generation processing of the recorded data D8 to generate masked recorded data D9.
The host computer 100 outputs and reproduces the recorded data D8 and the recorded data D9 after the time (delay time) required for jamming processing, noise compounding processing, masking processing, and the like.
In this manner, the host computer 100 performs mask processing on the recorded data based on the policy setting table 500 within a predetermined delay time to generate masked recorded data, and then reproduces the masked image data. output for
As a result, in this embodiment, for example, if there are participants with different authorizations to be displayed during an online conference such as a web conference, the conference will be delayed by the processing time of the transfer mechanism, but according to the viewing authorization of the participants. It is possible to display the recorded data.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are included within the scope of the present invention.

This application claims priority based on Japanese Patent Application No. 2021-053701 filed in Japan on March 26, 2021, and the entire disclosure thereof is incorporated herein.

1 table storage means 2 image control means 10 conference recording processing device 20 imaging device 21 imaging device 22 imaging device 30 administrator 40 viewer 100 host computer 110 web conference application 120 data mask mechanism 130 data deletion mechanism 140 transfer processing mechanism 150 authentication mechanism 160 policy analysis mechanism 200 recorded data storage unit 200A recorded data 300 authentication data storage unit

300A authentication data

400, 410 PC (conference terminal)
420 tablet (conference terminal)
450 Web conference client 500 Policy setting table 510 Authority management table A1 Policy setting table A2 Authority management table B Administrator GA Conference recording processor G1 Table storage means G2 Image control means

Claims

A policy setting table for setting, in advance, information to be protected in the information contained in the recorded meeting data of each meeting, and an authority management table for setting the viewing period of the recorded meeting data that can be viewed by one or more registrants. a table storage means for storing and
masking the conference recording data generated by the imaging device according to the protection target of the policy setting table stored in the table storage means to generate masked conference recording data; image control means for permitting or prohibiting the one or more registrants from viewing the masked conference recorded data in accordance with the permissible viewing period of the authority management table;
A conference recording processing device comprising:
　The conference recording processing apparatus according to claim 1, wherein the policy setting table is set with a conference name, recording identification information, and the protection target information.
3. A conference recording according to claim 2, wherein at least one of a specific person's face image, a specific person's voice, and a predetermined slide position range is set as the protection target information stored in the policy setting table. processing equipment.
4. The authorization management table according to any one of claims 1 to 3, wherein for each registrant, the viewable period of the masked conference recorded data according to the information to be protected is set. Conference recording processor.
The conference recording processing device according to any one of claims 1 to 4, wherein various data settings in the policy setting table and the authority management table are executed by the authority of an administrator.
The image control means uses at least one of artificial intelligence technology such as voice recognition, image recognition, and natural language processing to extract, from the recorded conference data, facial images of conference participants registered in advance, or images of the conference participants. 6. The conference recording processing device according to any one of claims 1 to 5, which recognizes voice.
The image control means performs the mask processing based on the policy setting table on the conference recorded data within a predetermined delay time to generate the masked conference recorded data, and then generates the masked conference image. 7. The conference recording processing device according to any one of claims 1 to 6, which outputs data for reproduction.
A policy setting table for setting, in advance, information to be protected in the information contained in the recorded meeting data of each meeting, and an authority management table for setting the viewing period of the recorded meeting data that can be viewed by one or more registrants. remember the
masking the recorded conference data according to the protection object of the stored policy setting table to generate masked recorded conference data; Alternatively, the conference recording processing method permits or prohibits viewing of the masked conference recording data for a plurality of registrants.