JP5531862B2 - Terminal device, information presentation method, and information presentation program - Google Patents

Description

  The present invention relates to a terminal device, an information presentation method, and an information presentation program that can present information related to a conference when a video conference is performed.

  2. Description of the Related Art Video conference systems that transmit and receive image and audio data between a plurality of terminal devices connected to each other via a network have become widespread. In a video conference system, in order to establish a connection between terminal devices at the start of a conference, a certain terminal device requests an interconnection from another terminal device. In this case, a complicated operation may be required to specify a desired connection request destination from a large number of connectable terminals. Therefore, a system has been proposed in which information about conference terminals used in past conferences and conference participants is recorded as history information, and the conference terminals of connection destination candidates are presented with reference to the history information ( For example, Patent Document 1).

JP 2009-267968 A

  In the system of the above-mentioned Patent Document 1, a conference terminal that refers to history information, extracts a conference having a high degree of coincidence between a candidate who wants to join a new conference and a past conference participant, and is connected to the conference terminal Is presented as a connection destination candidate. However, past conference participants do not always participate in the conference using the terminals used in the past conference. For example, when a conference is held by connecting terminals normally used by individual users, it is possible to move to another user's seat nearby and join the conference with the other user's terminal together. It is possible. In that case, since it participates in a meeting with the terminal different from the own terminal which the user used in the past meeting, from the history information which the system of patent document 1 uses, an appropriate connection destination candidate is presented. I can't.

  An object of the present invention is to provide a terminal device, an information presentation method, and an information presentation program capable of appropriately presenting information regarding connection destination candidates when performing a video conference.

A terminal device according to a first aspect of the present invention is a terminal device capable of establishing a connection with another terminal device via a connection control device that controls connection of a plurality of terminal devices, and is a candidate for a participant Information acquisition means, user information storage means, registration candidate specification means, unregistered candidate specification means, candidate information transmission means, other terminal information acquisition means, and presentation means are provided. The participant candidate information acquisition unit acquires participant candidate information, which is information on at least one participant candidate who can participate in the conference using the terminal device, based on information input from the input unit. The user information storage means stores user information that is identification information of a plurality of registered users. The registration candidate specifying means, said one of the participants candidates at least one person, the participant candidate for pre-Symbol participant candidate information is registered as the user information in the user information storage unit is specified as registration candidate . The unregistered candidate specifying means calculates the number of participant candidates whose participant information is not registered as the user information in the user information storage means among the at least one candidate candidate. Specify the number of people. The candidate information transmitting means includes information indicating the user information of the registration candidate specified by the registration candidate specifying means and the number of the unregistered candidates specified by the unregistered candidate specifying means, as candidate information To the connection control device. The other terminal information acquisition means is specified by each of a plurality of other terminal devices other than the terminal device among the plurality of terminal devices connected to the connection control device, and transmitted to the connection control device The candidate information is acquired from the connection control device as other terminal candidate information. The presenting means, based on the other terminal candidate information acquired by the other terminal information acquiring means, as the information on the connection destination candidate, the user information of the registration candidate corresponding to each of the plurality of other terminal devices, and Information indicating the number of unregistered candidates is presented.

The user who intends to participate in the conference using the terminal device can grasp the user information of registration candidates and the number of unregistered candidates corresponding to each of a plurality of other terminal devices presented by the presentation unit. Therefore, for example, even when trying to join a conference using a different terminal device that the registration candidate used in the past, it is possible to correctly grasp which other terminal device this registration candidate will join the conference this time. can do. Furthermore, in addition to registration candidates in other terminal devices, the number of unregistered candidates can also be recognized. Therefore, a user who intends to start a conference using a terminal device can determine an appropriate connection destination from various information of current participant candidates of a plurality of other terminal devices.

The terminal device may further include a meeting history storage unit and a ranking unit. The conference history storage means includes registered users and non-registered users who participated in a conference using the terminal device in a past connection session, and registered users who participated in the conference using another connected terminal device. And the number of unregistered users are stored as self-history information and other history information, respectively. The ranking unit ranks the plurality of other terminal devices based on the degree of coincidence between the candidate information and the other terminal candidate information and the self-history information and the other history information stored in the conference history storage unit. Add. The presenting means presents information indicating user information of the registered candidates corresponding to each of the plurality of other terminal devices and information indicating the number of unregistered candidates in accordance with the ranking given by the ranking means. Also good.

In this case, the information indicating the registration candidate user information and the number of unregistered candidates corresponding to each of the plurality of other terminal devices is the current status (candidate information of the terminal device and other terminal candidate information of the other terminal device) and , The ranking is presented in accordance with the degree of coincidence with the history information in the past connection session. If a conference has been held with similar participants in the past, there is a higher possibility that the participant will hold the conference again. Therefore, the possibility that the user can determine an appropriate connection destination more quickly is increased by checking a plurality of other terminal devices from the higher rank.

  In the terminal device, the ranking unit may rank the matching degree between the candidate information and the self-history information in preference to the matching degree between the other terminal candidate information and the other history information. Good.

  The higher the degree of coincidence of the terminal device candidate information with the self-history information, the higher the possibility that another terminal device that is the connection destination in the conference will be the connection destination this time. Therefore, it is possible to rank more effectively by prioritizing the degree of coincidence between the candidate information and the self-history information over the degree of coincidence between the other terminal candidate information and the other history information. It is highly possible that a correct connection destination can be determined.

  In the terminal device, the presenting unit may display the registered candidate and the unregistered candidate corresponding to each of the plurality of other terminal devices on a display unit in a distinguishable manner.

  In this case, since the registration candidate and the unregistered candidate are displayed on the display unit in a distinguishable manner, the user can more easily visually determine an appropriate connection destination among a plurality of other terminal devices.

  The terminal device may further include login user specifying means for specifying, as a login user, a registered user who has logged into the connection control device using the terminal device among the plurality of registered users. In the terminal device, the presenting means is configured to distinguish the login user corresponding to each of the plurality of other terminal devices, the registration candidate that is not the login user, and the unregistered candidate in a manner that can distinguish the display means. May be displayed.

  In this case, a login user corresponding to any one of a plurality of other terminal devices can be distinguished from a registration candidate that is not a login user. The logged-in user is often the main person among the candidate participants of other terminal devices. Therefore, the user of the terminal device can determine an appropriate connection destination more easily.

  The input means may be an imaging means for acquiring face image data. The participant candidate information acquisition unit may acquire participant candidate information by extracting facial feature data from the face image data acquired by the imaging unit. The terminal device includes the facial feature data acquired as the candidate candidate information by the participant candidate information acquisition unit, and the facial features of the plurality of registered users stored as the user information in the user information storage unit. The information processing apparatus may further include a determination unit that determines whether or not the candidate participant is included in the plurality of registered users by collating with data. The registration candidate specifying unit specifies the registration candidate based on the determination result of the determination unit, and the unregistered candidate specifying unit calculates the number of the unregistered candidates based on the determination result of the determination unit. You may specify.

  In this case, since collation is automatically performed based on the face image data acquired by the imaging unit, the participant candidate does not bother to input his / her own information into the input unit. In addition, when the terminal device is a video conference terminal device having a function of transmitting and receiving video and audio data, since it originally includes an imaging unit, it is necessary to newly provide an input unit for information regarding candidate participants. Absent.

The information presentation method according to the second aspect of the present invention is capable of establishing a connection with another terminal device via a connection control device that controls the connection of the plurality of terminal devices , and identifying a plurality of registered users. It is the information presentation method performed in the terminal device provided with the user information storage means which memorize | stores the user information which is information. In the information presentation method, participant candidate information for acquiring participant candidate information that is information related to at least one participant candidate who can participate in a conference using the terminal device based on information input from an input unit an acquisition step, wherein among the participants candidates at least one person, before Symbol the participants candidate which is registered as the user information to the participant candidate information the user information storage unit, registration candidate particular be specified as registration candidate And the number of participant candidates for which the candidate candidate information is not registered as the user information in the user information storage means among the at least one participant candidate is not specified as the number of unregistered candidates a registration candidate specifying step, and the user information of the identified in the registration candidate specifying step the registered candidate, identified in the registered candidate specifying step A candidate information transmission step of transmitting information indicating the number of unregistered candidates to the connection control device as candidate information; and among the plurality of terminal devices connected to the connection control device, other than the terminal device The other terminal information acquisition step of acquiring the candidate information specified by each of a plurality of other terminal devices and transmitted to the connection control device from the connection control device as other terminal candidate information, and the other terminal information acquisition Based on the other terminal candidate information acquired in the step, the user information of the registration candidates corresponding to each of the plurality of other terminal devices and the number of unregistered candidates are indicated as information on connection destination candidates. A presentation step for presenting information.

A user who intends to participate in the conference using the terminal device can grasp the user information of registration candidates and the number of unregistered candidates corresponding to each of a plurality of other terminal devices presented in the presentation step. Therefore, for example, even when trying to join a conference using a different terminal device that the registration candidate used in the past, it is possible to correctly grasp which other terminal device this registration candidate will join the conference this time. can do. Furthermore, in addition to registration candidates in other terminal devices, the number of unregistered candidates can also be recognized. Therefore, a user who intends to start a conference using a terminal device can determine an appropriate connection destination from various information of current participant candidates of a plurality of other terminal devices.

The information presentation program according to the third aspect of the present invention can establish a connection with another terminal device via a connection control device that controls the connection of a plurality of terminal devices , and identifies a plurality of registered users. It is the information presentation program for terminal devices provided with the user information storage means which memorize | stores the user information which is information. The information presenting program acquires participant candidate information that is information on at least one participant candidate that can participate in the conference using the terminal device based on information input from the input unit. an acquisition step, wherein among the participants candidates at least one person, before Symbol the participants candidate which is registered as the user information to the participant candidate information the user information storage unit, registration candidate particular be specified as registration candidate And the number of participant candidates for which the candidate candidate information is not registered as the user information in the user information storage means among the at least one participant candidate is not specified as the number of unregistered candidates a registration candidate specifying step, and the user information of the identified in the registration candidate specifying step the registered candidate, especially in the unregistered candidate specifying step A candidate information transmission step of transmitting the information indicating the number of registered unregistered candidates to the connection control device as candidate information, and the terminal device among the plurality of terminal devices connected to the connection control device An other terminal information acquisition step of acquiring the candidate information specified by each of a plurality of other terminal devices other than and transmitted from the connection control device as other terminal candidate information; and Based on the other terminal candidate information acquired in the information acquisition step, the user information of the registration candidates corresponding to each of the plurality of other terminal devices and the number of unregistered candidates as information on connection destination candidates, An instruction for causing the controller of the terminal device to execute a presenting step of presenting information indicating.

When each step is executed by the controller of the terminal device according to the instruction of the information presentation program, the user who intends to participate in the conference at the terminal device can register each of the plurality of other terminal devices presented in the presentation step. User information and the number of unregistered candidates can be grasped. Therefore, for example, even when trying to join a conference using a different terminal device that the registration candidate used in the past, it is possible to correctly grasp which other terminal device this registration candidate will join the conference this time. can do. Furthermore, in addition to registration candidates in other terminal devices, the number of unregistered candidates can also be recognized. Therefore, a user who intends to start a conference using a terminal device can determine an appropriate connection destination from various information of current participant candidates of a plurality of other terminal devices.

1 is a configuration diagram of a video conference system 1. FIG. 3 is a block diagram showing an electrical configuration of a terminal device 30. FIG. It is explanatory drawing of the registrant database 311. FIG. It is explanatory drawing of the meeting history database 312. FIG. 3 is a block diagram showing an electrical configuration of a connection control device 20. FIG. 5 is an explanatory diagram of a presence information table 241. FIG. 10 is a flowchart of a connection destination candidate presentation process of the terminal device 30. It is a flowchart of the participant candidate specific process performed by a connection destination candidate presentation process. It is explanatory drawing of the meeting information rearranged in the process of ranking of another terminal device. It is explanatory drawing of the connection destination candidate display screen. 4 is a flowchart of main processing of the connection control device 20.

  Hereinafter, a video conference system 1 according to an embodiment of the present invention will be described with reference to the drawings. The drawings to be referred to are used for explaining the technical features that can be adopted by the present invention, and the configuration of the apparatus described, the flowchart of various processes, etc. are not intended to be limited thereto. It is merely an illustrative example.

  First, the schematic configuration of the video conference system 1 will be described with reference to FIG. The video conference system 1 includes a connection control device 20 and a plurality of terminal devices 30, all of which are connected to a network 2 (for example, the Internet). In FIG. 1, four terminal devices 31, 32, 33, and 34 are illustrated as the plurality of terminal devices 30, but the number of terminal devices 30 is not limited to four. Hereinafter, when a plurality of terminal devices 30 are collectively referred to and when any one of the plurality of terminal devices 30 is specified without being specified, it is referred to as a “terminal device 30”.

  The connection control device 20 is a device that performs control for connecting a plurality of terminal devices 30 connected to the connection control device 20 via the network 2 (hereinafter simply referred to as connection control). The connection control device 20 according to the present embodiment functions as a SIP server that establishes a session between a plurality of terminal devices 30 in accordance with Session Initiation Protocol (SIP). When the session is established, communication between the plurality of terminal devices 30 without using the connection control device 20 becomes possible. As will be described in detail later, the terminal device 30 of the present embodiment includes a camera 352, a display 322, a microphone 331, and a speaker 332 (see FIG. 2), and audio data and video data with other terminal devices 30. By transmitting and receiving, a video conference can be carried out.

  When a video conference is performed between a plurality of terminal devices 30, the user of one of the terminal devices 30 needs to specify which other terminal device 30 is to make a connection request via the connection control device 20. For this reason, each terminal device 30 connected to the connection control device 20 specifies information related to a user who can participate in the video conference using the terminal device 30 (hereinafter referred to as a participant candidate), and sends the information to the connection control device 20. Send. In addition, each terminal device 30 acquires information specified by each of the other terminal devices 30 from the connection control device 20, and displays information related to connection destination candidates. Therefore, the user of the terminal device 30 can easily determine which other terminal device 30 is to make a connection request by confirming information on the connection destination candidate. Details of processing by the terminal device 30 and the connection control device 20 will be described later.

  The configuration of the terminal device 30 will be described with reference to FIGS. In the present embodiment, a general-purpose notebook personal computer is employed as an example of the terminal device 30. As shown in FIG. 2, the terminal device 30 includes a CPU 300, a ROM 301, a RAM 302, an input / output (I / O) interface 304, an external communication interface (I / F) 305, a hard disk device (HDD) 310, and a video controller 321. , A display 322, a key controller 323, a keyboard 324, a microphone 331, a speaker 332, a CD-ROM drive 340, and a USB interface 350.

  The ROM 301, RAM 302, and I / O interface 304 are connected to the CPU 300. The external communication I / F 305, HDD 310, video controller 321, key controller 323, CD-ROM drive 340, and USB interface 350 are connected to the I / O interface 304. The display 322 is connected to the video controller 321. The keyboard 324 is connected to the key controller 323.

  The USB interface 350 is a controller that is connected to an external device via a universal serial bus. A mouse 351 and a camera 352 are connected to the USB interface 350 by USB cables. In this embodiment, a small and lightweight general-purpose camera (so-called WEB camera) that can output captured video data to the network 2 in real time is employed as the camera 352. The external communication I / F 305 is a controller that performs data transmission / reception via the network 2. In the present embodiment, the external communication I / F 305 transmits / receives audio data and video data to / from another terminal device 30 when a video conference is executed. Presence information to be described later is also transmitted / received to / from the connection control apparatus 20 via the external communication I / F 305.

  The CPU 300 controls the operation of the terminal device 30 by executing various programs stored in the ROM 301 and the HDD 310. The ROM 301 stores a program for operating the terminal device 30, an initial value, and the like. The RAM 302 temporarily stores data such as calculation results when the CPU 300 executes various processes. The HDD 310 is a large-capacity storage device. The HDD 310 stores various processing programs executed by the CPU 300, such as a connection destination candidate presentation processing program described later, and a database (details will be described later) used in the various processing. The HDD 310 also stores various data (for example, video data and audio data acquired from the camera 352 and the microphone 331, video data received from the other terminal device 30, and other data transmitted / received to / from the other terminal device 30). Audio data) is also stored.

  A CD-ROM 341 storing various processing programs executed by the CPU 300 can be inserted into the CD-ROM drive 340. In the terminal device 30, these programs are read from the CD-ROM drive 340 and set up in the HDD 310. Note that a program downloaded from an external device via the network 2 may be set up in the HDD 310.

  A registrant database 311 that is an example of a database stored in the HDD 310 will be described with reference to FIG. The registrant database 311 stores information on a plurality of registered users registered as users of the video conference system 1 for each registered user. Information regarding each registered user (hereinafter referred to as registered user information) includes, for example, a registrant ID, a name, and face feature data. The registrant ID is a unique number that identifies the registered user. The name is the name of the registered user. The face feature data may be any data that can be used in the face recognition process described later, and is, for example, data indicating the position of a feature point of a face such as a registered user's eyes, nose and mouth. Although FIG. 3 illustrates the registrant database 311 storing only registered user information for seven registered users, the number of registered user information stored is not limited to seven.

  A method for registering registered user information in the registrant database 311 is not particularly limited, and for example, the following method is used. In order to use the video conference system 1, the user performs a procedure for becoming a registered user. Specifically, personal information such as a name and the own face image data captured by the camera 352 are transmitted to the connection control device 20, and the connection control device 20 issues a registrant ID. In the connection control device 20, the registrant ID, the personal information transmitted from each terminal device 30, and the face feature data extracted from the face image data are associated with each other, and registrant management similar to the registrant database 311 in FIG. Registered in a database (not shown).

  Note that the facial feature data may be extracted by any known method. For example, a face area is detected by detecting a skin color area in the image, and facial feature points such as eyes, nose, and mouth are extracted from the face area, and the position information thereof is used as face feature data. For example, when the registrant management database is updated by the connection control device 20, the updated information is transmitted to each of the plurality of terminal devices 30, and the information transmitted by each terminal device 30 is registered. Thus, a registrant database 311 as shown in FIG. 3 is constructed.

  With reference to FIG. 4, a conference history database 312 which is another example of the database stored in the HDD 310 will be described. In the conference history database 312, information related to a plurality of video conference sessions held in the past using the terminal device 30 is stored for each session. Information on each session (hereinafter referred to as conference information) includes, for example, date and time, login ID, other participant ID, number of unregistered participants, connection destination login ID, connection destination other participant ID, and connection destination unregistered participant Includes numbers.

  The date and time indicate the date and time when the video conference was held. For example, the time when a session between the terminal device 30 and another terminal device 30 is established and the time when the session is disconnected are used. The login ID is a registrant ID of a registered user who logs into the terminal device 30 in the session (hereinafter referred to as a login user). The other participant ID is a registrant ID of a registered user other than the login user among the registered users who participated in the video conference using the terminal device 30 in the session. The number of unregistered participants is the number of participants other than registered users (hereinafter referred to as unregistered participants) who participated in the video conference using the terminal device 30 in the session.

  The connection destination login ID is a registrant ID of a login user of another terminal device 30 (hereinafter referred to as a connection destination terminal device 30) that is a connection destination in the session. The connection destination and other participant IDs are registrant IDs of registered users other than the login user of the connection destination terminal device 30 among the registered users who participated in the video conference using the connection destination terminal device 30 in the session. The number of connection destination unregistered participants is the number of unregistered participants who participated in the video conference using the connection destination terminal device 30 in the session.

  The method for registering conference information in the conference history database 312 is not particularly limited. For example, when the session is disconnected, new conference information may be generated and registered based on the date and time and presence information (details will be described later) acquired before the session is established. 4 illustrates the conference history database 312 in which only seven conference information for seven sessions are stored, the number of conference information stored is not limited to seven. .

  The configuration of the connection control device 20 will be described with reference to FIGS. 5 and 6. As shown in FIG. 5, the connection control device 20 includes a CPU 21, a ROM 22, a RAM 23, an HDD 24, an input driver 25, a display driver 26, a CD-ROM drive 28, and an external communication I / F 27 connected to each other via a bus. It has. An input unit 251 such as a keyboard is connected to the input driver 25. A display 261 is connected to the display driver 26.

  The CPU 21 controls the operation of the connection control device 20 by executing various programs stored in the ROM 22 and the HDD 24. The ROM 22 stores a program for operating the connection control device 20, an initial value, and the like. The RAM 23 temporarily stores data such as calculation results when the CPU 21 executes various processes. The HDD 24 is a large capacity storage device. The HDD 24 stores various processing programs executed by the CPU 22, such as a main processing program described later, and data used in various processing. A CD-ROM 281 storing various processing programs executed by the CPU 21 can be inserted into the CD-ROM drive 28. In the connection control device 20, these programs are read from the CD-ROM drive 281 and set up in the HDD 24. Note that a program downloaded from an external device via the network 2 may be set up in the HDD 24.

  Data stored in the HDD 24 will be described. Although not shown, the HDD 24 stores a registrant management database similar to the registrant database 311 of FIG. 3 as described above. The registrant management database may include information not included in the aforementioned registered user information, such as a registered user password. Although not shown in the figure, in order to function as a SIP server, the connection control device 20 has the SIP URI, IP address, and IP address of all the terminal devices 30 connected to the connection control device 20 via the network 2. Correspondence information of the registered user ID of the login user is stored in a management table prepared in the HDD 24.

  Further, the HDD 24 stores a presence information table 241 illustrated in FIG. The presence information table 241 includes information on candidate participants in each terminal device 30 (hereinafter referred to as presence information) and acquisition date / time for all of the terminal devices 30 connected to the connection control device 20 via the network 2. It is a table to store. Each presence information includes, for example, a login ID, other registrant ID, and the number of unregistered participant candidates.

  The login ID is a login ID in the terminal device 30. The other registrant ID is a registrant ID of a registered user other than the login user among the participant candidates in the terminal device 30. The number of unregistered participant candidates is the number of participant candidates other than the registered user among the participant candidates in the terminal device 30. The acquisition date / time is the date / time when the connection control device 20 acquires (receives) the presence information transmitted from the terminal device 30.

  Although details of the processing will be described later, the presence information is acquired by each terminal device 30 and transmitted to the connection control device 20 after the terminal device 30 is connected to the connection control device 20 via the network 2 and the login process is successful. The presence date and time are stored in the presence information table 241. When the terminal device 30 logs out of the connection control device 20, the presence information and the acquisition date / time are deleted from the presence information table 241. Although FIG. 6 illustrates the presence information table 241 including only four pieces of presence information, the number of pieces of presence information stored is not limited to four.

  Below, with reference to FIGS. 7-10, the connection destination candidate presentation process performed with the terminal device 30 is demonstrated. The connection destination candidate presentation processing is started when the connection destination candidate presentation program stored in the HDD 310 is activated in the terminal device 30 and is executed by the CPU 300 executing this program. In the following, for the sake of convenience, it is assumed that the connection destination candidate presentation process is performed in the terminal device 31 shown in FIG. 1, and that the other terminal devices 32, 33, and 34 are already connected to the connection control device 20. To do.

  As shown in FIG. 7, when the connection destination candidate presentation process is started, an initialization process is performed (S1). In the initialization process, for example, the value n of the number counter stored in the RAM 302 is set to zero and the work area is cleared. The number counter is a counter for counting the number of unregistered participant candidates.

  Subsequently, a login request is made to the connection control device 20 (S2). The terminal device 31 transmits to the connection control device 20 at least the self ID input by the user from the keyboard 324 on the terminal device 31, and the SIP URI and IP address of the terminal device 31. The transmitted information is also stored in the RAM 302 of the terminal device 31. The connection control device 20 performs an authentication process for determining whether or not the user is a registered user based on the user ID transmitted from the terminal device 31.

  Based on the authentication result transmitted from the connection control device 20, it is determined whether or not the user has been authenticated as a registered user (S3). When it is not authenticated (S3: NO), the connection destination candidate presentation process ends. When the user is authenticated as a registered user (S3: YES), the camera 352 is activated and imaging is started (S4). Participant candidate identification processing is performed using the acquired video (S10 and FIG. 8).

  The participant candidate specifying process will be described with reference to FIG. In the present embodiment, face recognition processing is used to specify candidate participants. In the participant candidate specifying process, a face recognition engine separately stored in the HDD 310 is activated and used. As shown in FIG. 8, first, a face area in the acquired video is detected, feature points are extracted from the detected face area, and face feature data is generated (S11). When a plurality of face areas are detected in the video, one face area is selected and processed. The case where a plurality of face areas are detected is a case where a plurality of users gathered and photographed to participate in a video conference using the terminal device 31.

  It is determined whether or not the created face feature data belongs to the logged-in user (S12). Specifically, the facial feature data stored in the registrant database 311 in association with the ID stored in the RAM 302 in step S2 is acquired and compared with the facial feature data to be processed to determine the similarity between the two. It is done. When the similarity is equal to or greater than a predetermined threshold, it is determined that the two face feature data belong to the same person, that is, the person to be processed in the video is a login user (S12: YES). In this case, the user ID stored in the RAM 302 in step S2 is specified as the login ID and stored in the RAM 302 (S13). The process proceeds to step S17.

  When it is determined that the person to be processed is not a logged-in user (S12: NO), the facial feature data of registered users other than the logged-in user are sequentially acquired and compared with the facial feature data to be processed. If there is a registered user's face feature data whose similarity is equal to or greater than a predetermined threshold, it is determined that the person to be processed in the video is one of the registered users (S14: YES). In this case, the registrant ID stored in the registrant database 311 in association with the face feature data is specified as the other registrant ID and stored in the RAM 302 (S15). The process proceeds to step S17.

  On the other hand, if the similarity between the face feature data to be processed and the face feature data of a registered user other than the logged-in user is less than a predetermined threshold, the person in the video is not a registered user but an unregistered participant candidate. It is determined that there is (S14: NO). In this case, 1 is added to the value n of the number counter stored in the RAM 302 (S16). The process proceeds to step S17. It is determined whether the face recognition processing for all persons included in the video is completed (S17). If it is not completed (S17: NO), the process returns to step S11, an unprocessed face area is newly selected, and the same process as described above is performed (S11 to S16). When the face recognition processing for all persons included in the video is completed (S17: YES), the CPU 301 ends the participant candidate identification processing shown in FIG. 8, and returns to the connection destination candidate presentation processing shown in FIG.

  As shown in FIG. 7, after the participant candidate specifying process, presence information of the terminal device 31 is generated (S21). Specifically, presence information is obtained from the login ID stored in the RAM 302 in step S13, the other registrant ID stored in the RAM 302 in step S15, and the value n of the number counter, that is, the number of unregistered participant candidates. Generated and stored in the RAM 302. The generated presence information is transmitted to the connection control device 20 (S22). Since the same processing is performed in each of the other terminal devices 32 to 34 logged in to the connection control device 20, the presence information table 241 of the connection control device 20 includes a plurality of terminal devices 31 to 34 being connected. Presence information is stored (see FIG. 6).

  Presence information of the other terminal devices 32 to 34 connected to the connection control device 20 is acquired from the connection control device 20 together with the respective acquisition dates and times (S23). Specifically, a request for transmitting the presence information of the other terminal device 30 is transmitted to the connection control device 20 from the terminal device 31 together with the login ID. In response thereto, the presence information and the acquisition date and time of the other terminal devices 32 to 34 transmitted from the connection control device 20 are received by the terminal device 30 and stored in the RAM 302. The other terminal devices 32 to 34 are connection destination candidates for the terminal device 31.

  Based on the conference information in the conference history database 312, the presence information of the terminal device 31 generated in step S21, and the presence information of the other terminal devices 32-34 acquired in step S23, the other terminal devices 32-34. Is ranked (S24). The ranks of the terminal devices 32 to 34 are determined according to the degree of coincidence between the current situation (participant candidates of the terminal device 31 and participant candidates of the other terminal devices 32 to 34) and conference information that is a history of past sessions. Is done.

  Below, seven pieces of conference information shown in FIG. 4 are registered in the conference history database 312, and the login ID, other registrant IDs, and the number of unregistered participant candidates included in the presence information of the terminal devices 31 to 34 are as follows. Are “10999”, “none”, “1”, “10735”, “none”, “1”, “11100”, “13152”, “3”, “13152”, “none”, respectively. An example of a ranking method in the case of “0” will be described. In this case, for the terminal device 31, the registered user whose registrant ID is “10999” is the login user, there is no other registered user, and there is one unregistered participant candidate. First, the conference information in the conference history database 312 is sorted in the order of closeness to the presence information of the terminal device 31 in the priority order of the login ID, other participant IDs, and the number of unregistered participants. When there are a plurality of pieces of conference information having the same login ID, other participant IDs, and the number of unregistered participants, these conference information are sorted in order of date and time.

  When sorting is performed under the above-described conditions, the seven pieces of conference information shown in FIG. 4 are rearranged in the order shown in FIG. In the table, the conference information located at the top indicates that the conference information is closer to the presence information of the terminal device 31. Specifically, out of the six conference information having the same login ID (10999), the other two conference information of the session in which only the registered user who has no other participant ID and the registrant ID is “10999” participated is the highest. Lined up. Among these two pieces of conference information, the conference information of the session on June 18, 2010, in which the difference between the number of unregistered participants (1, 3) and the number of unregistered participant candidates (1) of the terminal device 31 is smaller Becomes the top. Next, the conference IDs that match the login ID but include one other participant ID each include the number of unregistered participants (1, 2, 4) and the number of unregistered participant candidates (1). Are arranged in order from the smallest. Next, the conference information that has the same login ID but includes two other participant IDs is arranged, and finally, the conference information that does not match the login ID is arranged.

  After the meeting information is rearranged as shown in FIG. 9, the presence information of the terminal devices 32 to 34 that are connection destination candidates is ranked in the order closer to the higher-level meeting information. First, presence information that completely or partially matches the rearranged top-level meeting information is searched. Specifically, the connection destination login ID, the connection destination other participant ID, and the connection destination unregistered participant number of the conference information are respectively the presence information login ID, other registrant ID, and the number of unregistered participant candidates. To be compared. When all three items match, it is determined as “complete match”, when only one item or two items out of the three items match, “partial match”, and when one item does not match, “no match”. None of the presence information of the terminal devices 32 to 34 is in agreement with the highest level conference information. Similarly, the presence information of the terminal devices 32 to 34 does not match with the second conference information.

  Since the connection destination login ID, the connection destination other participant ID, and the connection destination unregistered number of participants in the third conference information are “11100”, “13152”, and “3”, respectively, the login ID of the terminal device 33 , Other registrant IDs, and the number of unregistered participant candidates completely match. Therefore, the terminal device 33 is ranked as the highest connection destination candidate. Similarly, meeting information is sequentially compared with presence information. The connection destination login ID, connection destination other participant ID, and connection destination unregistered number of participants in the fifth conference information are “10735”, “none”, and “2”, respectively, and the login ID of the terminal device 32, The other registrant ID and the number of unregistered participant candidates are “10735”, “none”, and “1”, respectively. Therefore, the terminal device 32 is ranked as the second connection destination candidate, and the terminal device 34 is ranked as the third connection destination candidate.

  In this ranking method, the conference information is arranged in the order close to the presence information of the terminal device 31 and corresponds to the presence information having a high degree of coincidence with the conference information at the higher level among the other terminal devices 32-34. The higher ranking is given. That is, the degree of coincidence between the presence information of the terminal device 31 and the information of the terminal device 31 in the conference information is prioritized over the degree of coincidence of the presence information of the other terminal devices 32 to 34 and the connection destination information in the conference information. And ranking is done. The higher the degree of coincidence between the presence information of the terminal device 31 and the information of the terminal device 31 in the conference information, the higher the possibility that the other terminal device 30 that is the connection destination in the conference will be the connection destination this time. Therefore, by ranking in this way, more effective ranking can be performed, and there is a high possibility that the user of the terminal device 31 can determine an appropriate connection destination more quickly.

  By the way, in the above ranking method, the presence information of any one of the connection destination candidate terminal devices 32 to 34 partially matches the higher-order conference information in the rearranged order, and another presence It may happen that the information exactly matches the conference information at a lower level. Therefore, instead of the above-described ranking method, for example, the ranking may be determined as follows. First, the ranking of the conference information rearranged based on the presence information of the terminal device 31 is directly used as a score. Presence information of the terminal devices 32 to 34 is ranked in the order of complete match, partial match, and mismatch, and 1 point, 2 points, and 3 points are given in order from the top. If there are a plurality of partially matching presence information, priority is given in the order of login ID match, other registrant ID match, and unregistered participant candidate count. The lower the total score of the conference information score and the presence information score, the higher the ranking.

  For example, as described above, the third conference information and the presence information of the terminal device 33 completely match, the fifth conference information and the presence information of the terminal device 32 partially match (two items match), It is assumed that the connection destination login ID of the first meeting information partially matches the login ID of the terminal device 34 (one item matches). In this case, in the terminal devices 32 and 34, the terminal device 32 in which the two items of the first priority and the second priority match is higher than the terminal device 34. Therefore, the total points are 7 points for the terminal device 32 (= 5 points + 2 points), 4 points for the terminal device 33 (= 3 points + 1 point), and 4 points for the terminal device 34 (= 1 point + 3 points). The terminal devices 33 and 34 are the same, but in this case, the terminal device 34 corresponding to the conference information closer to the presence information of the terminal device 31 may be given priority. Accordingly, the terminal device 34 is ranked highest, the terminal device 33 is ranked second, and the terminal device 32 is ranked third.

  As shown in FIG. 7, after ranking of the connection destination candidate terminal devices 32 to 34 is performed (S24), a screen presenting candidate candidate information corresponding to each of the terminal devices 31 to 34 is displayed. It is displayed at 322 (S25). With reference to FIG. 10, the connection destination candidate display screen 10 as an example of the display screen at this time will be described. As shown in FIG. 10, on the connection destination candidate display screen 10, information regarding the terminal device 31 and a plurality of terminal devices 30 that can be connected to the terminal device 31 is displayed on the connection control device 20 as online Are displayed separately for the offline terminal device 30. Note that since the offline terminal device 30 is not connected to the connection control device 20, a connection request cannot be made and it cannot be a connection destination candidate. Therefore, the offline terminal device 30 may not be displayed.

  On the connection destination candidate display screen 10, among the online terminal devices 31 to 34, the terminal devices 32 to 34 that are connection destination candidates are displayed according to the order determined in step S24. For example, when ranking is given from the top in the order of the terminal devices 33, 32, and 34, information on the candidate participants of the terminal devices 33, 32, and 34 is displayed in order from the left side of the connection destination candidate display screen 10. As described above, the ranks of the terminal devices 32 to 34 are determined based on the current situation (participant candidates of the terminal device 31 and participant candidates of the other terminal devices 32 to 34), conference information that is a history of past sessions, and the like. It is determined according to the degree of coincidence. If a conference has been held with similar participants in the past, there is a higher possibility that the participant will hold the conference again. Therefore, by confirming the participant candidates of the terminal devices 32 to 34 from the higher rank, the user of the terminal device 31 is more likely to be able to determine an appropriate connection destination more quickly. In the present embodiment, information on the candidate participants of the terminal device 31 is also displayed on the right side of the information on the connection destination candidates, but the information on the terminal device 31 may not be displayed.

  As described above, there are three types of participant candidates: login users, other registered users, and unregistered participant candidates. Therefore, in the present embodiment, information on the login user, other registered users, and unregistered participant candidates is described below based on the presence information of the other terminal devices 32 to 34 acquired in step S23. They are displayed in a distinguishable manner.

  All participant candidates are displayed with a person icon, but the login user and other registered users are displayed with a person icon larger than the unregistered participant candidate. The names stored in the registrant database 311 (see FIG. 3) in association with the registrant ID are displayed together on the right side of the login user and other registered user person icons. The person icon and the name are distinguished between the login user and other registered users, for example, by being displayed in different colors. As shown in FIG. 10, it may be distinguished by a method such as underlining only the name of the login user. Since the logged-in user is often the main person among the participant candidates of each of the terminal devices 32 to 34, the user of the terminal device 31 can easily determine an appropriate connection destination by making such a distinction. Can do.

  Among the participant candidates, the login user is arranged at the uppermost position, other registered users are arranged below it, and unregistered participant candidates are arranged further below. When there are a plurality of unregistered candidates, person icons smaller than registered users are arranged side by side. The names of unregistered participant candidates are unknown and are not displayed. Thus, since the registered user and the unregistered participant candidate are displayed in a distinguishable manner on the connection destination candidate display screen 10, the user can select an appropriate connection among the terminal devices 32 to 34 as connection destination candidates. The tip can be more easily visually identified.

  By the way, in the video conference system 1 of this embodiment, the terminal device 30 which a registered user usually uses is roughly determined, and the terminal device 30 can be used to log in to the connection control device 20 with its own registrant ID. Assumed. However, for example, a registered user “FFF” having a registrant ID “13152” performs login processing at the terminal device 34 and then uses the terminal device 33 to register with the login user “CCC” of the terminal device 33. Suppose you want to join a video conference with three potential participants. In this case, in the terminal device 34, the registered user “FFF” is specified as the login user by the face recognition process immediately after the login, and presence information including the registrant ID “13152” as the login ID is transmitted to the connection control device 20. Furthermore, presence information including the registrant ID “13152” of the registered user “FFF” as the other registrant ID is also transmitted from the terminal device 33 to the connection control device 20 by the same processing.

  Therefore, when the connection destination candidate presentation process is subsequently performed in the terminal device 31, the terminal device 31 includes the same registered user “FFF” information in the presence information of both the terminal devices 33 and 34. . In this case, “FFF” is displayed as the other registered user and logged-in user on the different terminal devices 33 and 34, respectively (the left end and the third participant candidate information from the left in FIG. 10). Person icon). In this case, the acquisition date and time acquired together with the presence information in step S23 are compared. The registered user “FFF” is considered to participate in the conference among the terminal devices 33 and 34 corresponding to the newer presence information. Therefore, for example, the terminal device 33 that is actually considered to be used by the registered user “FFF” can be easily recognized by displaying the person icon corresponding to the older presence information lightly or blinking. You can also

  Thus, after the screen for presenting the candidate candidate information corresponding to each of the terminal devices 31 to 34 is displayed on the display 322 (S25), the connection destination candidate presentation process shown in FIG. 7 ends. Although detailed description is omitted, after the connection destination candidate presentation process, the connection destination is determined by the participant candidate of the terminal device 31 with reference to the information of the candidate participants of the terminal devices 32 to 34, and connection control is performed. A connection request to the connection destination is transmitted to the device 20. When the session is established, audio data and video data are transmitted and received between the terminal device 31 and the other terminal device 30 to which the terminal device 31 is connected, whereby a video conference is performed. These processes are performed by the CPU 300 executing a program separately stored in the HDD 310.

  Next, a main process of the connection control device 20 will be briefly described with reference to FIG. The main process is started when the power of the connection control device 20 is turned on, and is performed by the CPU 21 executing this program while the power is on. It is determined whether or not there is a login request from any of the terminal devices 30 via the network 2 (S31). When there is a login request (S31: YES), as described above, a registrant management database (not shown) is referred to, and an authentication process for determining whether or not the ID received together with the login request is a registrant ID. The authentication result is transmitted to the terminal device 30 (S32). If the received ID is a registrant ID, the correspondence information of the SIP URI of the terminal device 30, the IP address, and the registrant ID of the login user is newly stored in the management table of the HDD 24. The process returns to step S31.

  If a login request has not been made (S31: NO), it is determined whether presence information from any of the terminal devices 30 has been received (S33). When the presence information is received (S33: YES), the presence information and its acquisition (reception) date and time are newly stored in the presence information table 241 (see FIG. 6) of the HDD 24 (S34). The process returns to step S31. Presence information is not received (S33: NO), and when transmission of presence information is requested from any of the terminal devices 30 (S35: YES), other connection is being made to the requesting terminal device 30. Presence information of all the terminal devices 30 is transmitted together with the acquisition date and time (S36). Specifically, based on the login ID of the requesting terminal device 30, the information on the other connected terminal device 30 among the information stored in the presence information table 241 is specified and transmitted. The process returns to step S31.

  If transmission of presence information is not requested (S35: NO), other processing according to the received information is performed (S37). For example, when a connection request from one of the terminal devices 30 to another terminal device 30 is received, control is performed to call another terminal device 30 in accordance with SIP and establish a session. Further, when there is a logout request from any of the terminal devices 30, processing such as disconnecting the session and deleting information related to the disconnected terminal device 30 from the management table and the presence information table is performed. After the other processes are performed, the process returns to step S31.

  As described above, when the registered user logs in to the connection control device 20 using his / her registrant ID, the terminal device 30 of the present embodiment has at least one person who can participate in the video conference using the terminal device 30. The participant candidate's face is imaged by the camera 352. Then, the facial feature data is obtained from the obtained video, and the facial feature data is collated with the facial feature data of the registered user registered in the registrant database 311 to perform face recognition processing, and at least one participant Among candidates, registered users (logged-in users and other registered users) and the number of unregistered participant candidates are specified. Presence information including the registrant ID (login ID and other registrant ID) of the identified registered user and the number of unregistered participants is transmitted to the connection control device 20.

  Further, the terminal device 30 acquires presence information transmitted from the other terminal device 30 and stored in the connection control device 20 in the same manner from the connection control device 20. Then, based on the acquired presence information of the other terminal device 30, information indicating registered users (logged-in users and other registered users) among the participant candidates of the other terminal device 30 and the number of unregistered participant candidates. (Person icon and name) are displayed on the display 322 as information of connection destination candidates.

  Therefore, a user who intends to start a conference using the terminal device 30 easily grasps the registered users and the number of unregistered participant candidates corresponding to each of the other terminal devices 30 displayed on the display 322. be able to. Therefore, for example, even if another registered user intends to participate in the conference using the terminal device 30 that is normally used or another terminal device 30 that has been used in the past, It is possible to correctly grasp whether the terminal device 30 intends to participate in the conference. Furthermore, among the participant candidates of the other terminal devices 30, in addition to the registered user, the number of unregistered participant candidates can also be recognized. Therefore, a user who intends to start a conference using the terminal device 30 can determine an appropriate connection destination from various information of current participant candidates of a plurality of other terminal devices 30.

  In the above embodiment, the camera 352 corresponds to the “input unit” and “imaging unit” of the present invention. The CPU 300 that generates the facial feature data in step S11 in FIG. 8 corresponds to “participant candidate information acquisition unit”. The HDD 310 that stores the registrant database 311 corresponds to a “user information storage unit”. The CPU 300 that determines whether or not the participant candidate is a registered user in steps S12 and S14 corresponds to “determination means”. The CPU 300 that specifies the login ID and other registrant IDs in steps S13 and S15 corresponds to “registration candidate specifying means”. The CPU 300 that specifies the login ID in step S13 corresponds to a “login user specifying unit”. The CPU 300 that specifies the number of unregistered participant candidates in step S16 corresponds to “unregistered candidate specifying means”.

  The CPU 300 that transmits the presence information to the connection control device 20 in step S22 of FIG. 7 corresponds to “candidate information transmission means”. The CPU 300 that acquires the presence information of the other terminal device 30 from the connection control device 20 in step S23 corresponds to “another terminal information acquisition unit”. The CPU 300 that displays the connection destination candidate display screen 10 on the display 322 as the “display unit” in step S25 corresponds to the “presentation unit”. The HDD 310 that stores the conference history database 312 corresponds to “conference history storage means”. In step S24, the CPU 300 that ranks the other terminal devices 30 corresponds to “ranking means”.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the embodiment, the terminal device 30 and the connection control device 20 are a general-purpose personal computer and a SIP server, respectively. A dedicated video conference terminal that supports the H.323 function and a multipoint connection control device may be used.

  In the embodiment, the participant candidate specifying process is performed using a face recognition process. In this case, face feature data is automatically generated based on the image data acquired by the camera 352 and collation is performed, so that the participant candidate does not bother to input his / her own information into any input means. Further, since the terminal device 30 is assumed to be used for a video conference, the camera 30 is originally provided. Therefore, it is not necessary to newly provide a means for inputting information regarding candidate participants. However, a method other than the face recognition process may be used as long as information on the candidate participants can be acquired and the number of registered users and the number of unregistered participant candidates can be specified. For example, recognition processing using other biological information (fingerprint, iris) may be performed instead of the facial feature data. The identification code of each participant candidate stored in the ID card may be read with a card reader to perform a verification process with a registered user.

  Registrant database 311 may not be stored in terminal device 30. In the case of the verification process using the above-described ID card, the registrant ID, name, and identification code need only be stored in the registrant management database of the connection control device 20 in association with each other. Then, the terminal device 30 transmits the acquired identification code to the connection control device 20, and the connection control device 20 performs a collation process with the identification code of the registered user. The terminal device 30 can specify the registered user and the number of unregistered participant candidates by acquiring the result from the connection control device 20.

  In the embodiment, the connection destination candidate terminal devices 32 to 34 are ranked and the registered users and the number of unregistered candidates are displayed according to the determined order. However, the connection destination candidate terminal devices 32 to 34 are displayed. If each registered user and the number of unregistered candidates are presented, ranking may not be performed. Further, it is not necessary to distinguish between a login user and other registered users. The display mode of the person icon shown in the embodiment is an example, and other modes may be used. The name of the registered user and the number of unregistered participant candidates may be displayed in text without using the person icon. The name of the registered user and the number of unregistered participant candidates may be presented by voice instead of display.

20 connection control device 30 terminal device 300 CPU
310 HDD
322 Display 351 Camera

Claims (8)

A terminal device capable of establishing a connection with another terminal device via a connection control device that controls connection of a plurality of terminal devices,
Participant candidate information acquisition means for acquiring participant candidate information that is information related to at least one participant candidate that can participate in the conference using the terminal device based on information input from the input means;
User information storage means for storing user information which is identification information of a plurality of registered users;
Among the participants candidates of said at least one person, the participant candidate for pre-Symbol participant candidate information is registered as the user information in the user information storage means, a registration candidate specifying means for specifying a registration candidate,
Unregistered candidate specification that specifies, as the number of unregistered candidates, the number of participant candidates for which the candidate candidate information is not registered as the user information in the user information storage means among the at least one participant candidate Means,
Information indicating the user information of the registration candidate specified by the registration candidate specifying unit and the number of the unregistered candidates specified by the unregistered candidate specifying unit is transmitted as candidate information to the connection control device. Candidate information transmitting means to perform,
Among the plurality of terminal devices connected to the connection control device, the candidate information specified by each of a plurality of other terminal devices other than the terminal device and transmitted to the connection control device is used as another terminal candidate. Other terminal information acquisition means for acquiring from the connection control device as information,
Based on the other terminal candidate information acquired by the other terminal information acquisition means, as the information on the connection destination candidate, the user information of the registration candidate corresponding to each of the plurality of other terminal devices and the unregistered candidate A terminal device comprising presentation means for presenting information indicating the number of persons. The number of registered users and non-registered users who participated in the conference using the terminal device in the past connection session, and the number of registered users and non-registered users who participated in the conference using the other terminal device of the connection destination , A meeting history storage means for storing each as self-history information and other history information,
Ranking means for ranking the plurality of other terminal devices based on the degree of coincidence between the candidate information and the other terminal candidate information and the self-history information and the other history information stored in the conference history storage means; Further comprising
The presenting means presents information indicating the user information of the registration candidates and the number of unregistered candidates corresponding to each of the plurality of other terminal devices according to the order given by the ordering means. The terminal device according to claim 1.   The ranking means assigns the ranking in preference to the matching degree between the candidate information and the self-history information over the matching degree between the other terminal candidate information and the other history information. The terminal device according to 2.   4. The display unit according to claim 1, wherein the presenting unit causes the display unit to display the registered candidate and the unregistered candidate corresponding to each of the plurality of other terminal devices in a distinguishable manner. The terminal device described. A log-in user specifying means for specifying, as a log-in user, a registered user who has logged in to the connection control device using the terminal device among the plurality of registered users;
The presenting means causes the display means to display the login user corresponding to each of the plurality of other terminal devices, the registration candidate that is not the login user, and the unregistered candidate in a distinguishable manner. The terminal device according to claim 4, characterized in that: The input means is imaging means for acquiring face image data,
The participant candidate information acquisition means acquires the participant candidate information by extracting facial feature data from the face image data acquired by the imaging means,
Collating the facial feature data acquired as the candidate candidate information by the participant candidate information acquisition unit with the facial feature data of the plurality of registered users stored as the user information in the user information storage unit. And further comprising determination means for determining whether the participant candidate is included in the plurality of registered users,
The registration candidate specifying unit specifies the registration candidate based on the determination result of the determination unit,
6. The terminal device according to claim 1, wherein the unregistered candidate specifying unit specifies the number of the unregistered candidates based on a determination result of the determining unit. It is possible to establish a connection with another terminal device via a connection control device that controls the connection of a plurality of terminal devices, and includes user information storage means for storing user information that is identification information of a plurality of registered users. An information presentation method performed in a terminal device,
Participant candidate information acquisition step of acquiring participant candidate information that is information related to at least one participant candidate who can participate in the conference using the terminal device based on information input from the input unit;
Among the participants candidates of said at least one person, the participant candidate for pre-Symbol participant candidate information is registered as the user information in the user information storage means, a registration candidate specifying step of specifying a registration candidate,
Unregistered candidate specification that specifies, as the number of unregistered candidates, the number of participant candidates for which the candidate candidate information is not registered as the user information in the user information storage means among the at least one participant candidate Steps,
Information indicating the user information of the registration candidate specified in the registration candidate specifying step and the number of unregistered candidates specified in the unregistered candidate specifying step is transmitted as candidate information to the connection control device. A candidate information sending step,
Among the plurality of terminal devices connected to the connection control device, the candidate information specified by each of a plurality of other terminal devices other than the terminal device and transmitted to the connection control device is used as another terminal candidate. Other terminal information acquisition step to acquire from the connection control device as information,
Based on the other terminal candidate information acquired in the other terminal information acquisition step, as information on a connection destination candidate, the user information of the registration candidate corresponding to each of the plurality of other terminal devices and the unregistered candidate A presentation step for presenting information indicating the number of persons. It is possible to establish a connection with another terminal device via a connection control device that controls the connection of a plurality of terminal devices, and includes user information storage means for storing user information that is identification information of a plurality of registered users. An information presentation program for a terminal device,
Participant candidate information acquisition step of acquiring participant candidate information that is information related to at least one participant candidate who can participate in the conference using the terminal device based on information input from the input unit;
Among the participants candidates of said at least one person, the participant candidate for pre-Symbol participant candidate information is registered as the user information in the user information storage means, a registration candidate specifying step of specifying a registration candidate,
Unregistered candidate specification that specifies, as the number of unregistered candidates, the number of participant candidates for which the candidate candidate information is not registered as the user information in the user information storage means among the at least one participant candidate Steps,
Information indicating the user information of the registration candidate specified in the registration candidate specifying step and the number of unregistered candidates specified in the unregistered candidate specifying step is transmitted as candidate information to the connection control device. A candidate information sending step,
Among the plurality of terminal devices connected to the connection control device, the candidate information specified by each of a plurality of other terminal devices other than the terminal device and transmitted to the connection control device is used as another terminal candidate. Other terminal information acquisition step to acquire from the connection control device as information,
Based on the other terminal candidate information acquired in the other terminal information acquisition step, as information on a connection destination candidate, the user information of the registration candidate corresponding to each of the plurality of other terminal devices and the unregistered candidate An information presentation program comprising: an instruction for causing a controller of the terminal device to execute a presentation step of presenting information indicating the number of persons.

Images