KR20120131878A - Method for managing a video call history and video communication apparatus thereof - Google Patents

Abstract

The present invention relates to a method for managing video call history information and a video communication apparatus using the same, the method comprising: acquiring an image of a call counterpart while performing a video call; And storing history information on the video call in correspondence with the obtained counterpart image.

Description

Method for managing a video call history and video communication apparatus using the same

The present invention relates to a method for managing a history of video calls previously performed in a video communication device.

In recent years, with the rapid development of communication technology, a communication method capable of voice, video, and data communication has been developed, and methods for enabling full-scale high-speed multimedia services have been continuously studied.

Recently, among the functions provided for user convenience, there is a video call function that makes a call while looking at each other's appearances rather than a simple voice call only. Such a video call is made by simultaneously transmitting video data input through a camera or the like together with audio data input through a microphone or the like. Such a video call can transmit a video data to a counterpart by using real-time video streaming technology, so that the call can be seen while watching each other.

An object of the present invention is to provide a method for efficiently managing history information of a video call previously performed in a video communication device.

In accordance with an aspect of the present invention, a method for managing a video call history includes: acquiring an image of a call counterpart while performing a video call; And storing history information on the performed video call in correspondence with the obtained counterpart image.

In addition, the video communication apparatus according to the embodiment of the present invention transmits a transmission stream including AV data corresponding to the video and audio of the user, and receives the stream including the AV data corresponding to the video and audio of the video call counterpart. Communication unit for receiving; A storage unit for storing history information on the performed video call; And acquiring the video of the call counterpart from the reception stream according to whether a user's request or a preset video acquisition condition is satisfied during the video call, and storing the correspondent video corresponding to the video call history information. And a control unit for storing in the unit.

On the other hand, the video call history management method may be implemented as a computer-readable recording medium recording a program for execution in a computer.

According to an embodiment of the present invention, by storing and managing the video call history information along with the video of the other party acquired during the call, it is possible to provide information on the video call history in a form that can be easily recognized by the user, As a result, operations such as connecting a video call and managing contacts can be efficiently performed.

1 is a block diagram showing the configuration of a video communication system.
2 is a block diagram showing a configuration of a video communication apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a video call history management method according to an embodiment of the present invention.
4 and 5 are diagrams illustrating an embodiment of a method of acquiring an image of a call counterpart and storing it as video call history information.
6 to 8 are diagrams illustrating embodiments of a method of displaying video call history information.
9 is a diagram illustrating an embodiment of a method of connecting a video call using video call history information.
10 and 11 illustrate an embodiment of a method of registering a contact using video call history information.

Hereinafter, a display apparatus and a video call connection method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a video communication system.

Referring to FIG. 1, a video communication system uses a plurality of devices capable of processing and transmitting / receiving video data and audio data, while viewing a video transmitted by a calling party and a called party from an opposite party. It's a system that lets you talk to each other.

For example, the image communication apparatus 10 acquires image and audio data corresponding to the image and audio of the user by using a camera, a microphone, and the like and inputs the obtained image and audio data. It may transmit to other devices 20 to 60 connected via a wired or wireless network.

According to an exemplary embodiment of the present invention, the image communication apparatus 10 may be a digital TV for receiving and displaying digital broadcasting, and the digital broadcasting is a method of compressing and transmitting video and audio signals.

Meanwhile, the video communication device 10 may receive video and audio data from other devices 20 to 60 connected to the wired / wireless network. Accordingly, the video communication device 10 and the counterpart devices 20 to 60 may be received. Video communication between may be possible.

As shown in FIG. 1, a device capable of video communication with the video communication device 10 may include another display device 20, a mobile phone 30, a mobile terminal 40 such as a PDA or a notebook computer of a counterpart user, and a PC. 50, the video communication apparatus 60, and the like.

In addition, the network connecting the video communication device 10 and the counterpart devices 20 to 60 enables transmission and reception of video and audio data according to a communication standard for video communication.

For example, the video communication device 10 and the counterpart devices 20 through 60 transmit and receive the video and audio data using a network according to Ethernet or IEEE 802.3, or use a wireless network according to IEEE 802.11, or the like. The data can be transmitted and received.

The network may transmit / receive data between the video communication apparatus 10 and the counterpart apparatuses 20 to 60 by using a voice over broadband (VoBB) or legacy service.

More specifically, the VoBB may include voice over cable modem (VOCM), voice over DSL (VODSL), voice over Internet protocol (VoIP), fixed wireless access (FWA), fiber to the home (FTTH), or voice over VoATM (VoATM). Services such as ATM).

The legacy service may include an integrated service digital network (ISDN), a plain old telephone service (POTS), a cellular or 3G service, and the like.

Accordingly, the video communication device 10 and the counterpart devices 20 to 60 may transmit video and audio data using a wireless network, a conventional telephone network, a data network such as the Internet, a cable modem system, a cellular network, or the like. Can send and receive

On the other hand, the video communication device 10 and the counterpart devices 20 to 60 may transmit and receive video and audio data according to a standard set therebetween. For example, the H.261 standard, video and Communication of voice data may use protocols such as the H.221 standard and the H.242 standard for call setup and teardown.

More specifically, in the case of a video communication system using the Internet, video communication standards such as the H.323, H.263, and H264 standards for video coding and G723.1, G.711, and G.729 for voice coding are used. Implemented protocols may be used.

However, the video communication system according to the embodiment of the present invention is not limited to the above configuration. For example, the devices 20 to 60 which are in video communication with the video communication device 10 are not limited to the devices 20 to 60 as shown in FIG. 1, and other than the above standard SIP, RTP Standards such as the / RTCP protocol may be used.

According to an embodiment of the present invention, the video communication device 10 may be connected to a display device (not shown) such as a digital TV by using an interface such as HDMI (High-Definition Multimedia Interface).

In this case, the video communication apparatus 10 transmits data corresponding to the call video and audio of the caller and data corresponding to the call video and voice of the called party. This may be output through the display device.

2 is a block diagram illustrating a configuration of an image communication apparatus according to an embodiment of the present invention. The illustrated image communication apparatus includes a communication unit 100, an interface unit 105, a control unit 110, and an AV processing unit 115. The video call processor 120 may include a storage unit 130, a camera 141, a microphone 142, and a user input unit 150.

Referring to FIG. 2, the communication unit 100 may be connected to a server for a video communication service or a video communication device of a counterpart user to transmit and receive video communication data.

For example, the communication unit 100 may transmit a transmission stream including AV data corresponding to a user's video and audio to an external device, for example, a display device of a call counterpart, via a wired or wireless network.

In addition, the communication unit 100 may receive a reception stream including AV data corresponding to the video and audio of the other party from the other party's video communication device.

More specifically, the communication unit 100 is connected to the other party's video communication device using a wired or wireless network such as Ethernet or IEEE 802.3, IEEE 802.11, and transmits and receives the AV data according to the video call with the other party's video communication device. can do.

The interface unit 105 may be connected to a display device (not shown) for outputting video call video and audio using an interface such as HDMI, and output AV data for the video call being transmitted and received to the display device. .

The display apparatus may include a display module (not shown) and a voice output module (not shown) for outputting AV data input from an interface unit of the video communication apparatus, and together with the display apparatus for receiving a broadcast signal. A tuner (not shown) may be further provided.

The video call processing unit 120 performs preset video communication between the transmitted and received video communication data, that is, the AV data of the user obtained using the camera 141 and the microphone 142 and the AV data of the counterpart received through the communication unit 100. The image may be processed and output according to a video communication standard such as H.323, H.263 or H264 standard for video data, G723.1, G.711 or G.729 for audio data.

For example, the video call processor 120 encodes the video data according to H.323, H.263, and H.264 standards to form a basic stream of digital data, that is, an elementary stream. It can output the video stream of.

In addition, the video call processor 120 may output the audio stream in the form of an elementary stream by encoding the voice data according to standards such as G.723.1, G.711, and G.729.

The AV processing unit 115 displays the video communication data output from the video call processing unit 120, for example, a video and audio data of the user according to the video call and the video and audio data of the call counterpart via the interface unit 105. Can be converted to a form that can be output from the device.

That is, the AV processor 115 may process the call image of each of the user and the counterpart to be output by a display module (not shown) provided in the display apparatus by using the video communication data processed by the video call processor 120. Can be.

In addition, the AV processor 115 may output a call voice of each of a user and a call counterpart using a video output data processed by the video call processor 120 from a voice output module (not shown) provided in the display apparatus. Can be processed.

On the other hand, the AV processing unit 115 is a pre-processing operation for improving the image quality of the image or adjust it to suit a specific purpose, for example, image processing such as readjustment, noise removal, smoothing, sharpening, etc. You can also do

The storage unit 130 may store a program or user information for operating the display device.

According to an embodiment of the present invention, the storage unit 130 may store call history information on a previously performed video call, and the video call history information stored in the storage unit 130 may include an image of a call counterpart. have.

The camera 141 may capture a peripheral area of the image communication apparatus, more specifically, an area including a user, and acquire and output image data corresponding thereto.

On the other hand, the camera 141 may be provided to be mounted on one side of the main body of the display device connected to the image communication device 10, such as a web cam, so that the front of the display device is disposed Can be.

The microphone 142 may collect sound generated from the vicinity of the video communication device, more specifically, sound including the user's voice, and output voice data corresponding thereto.

On the other hand, the microphone 142 may be mounted on one side of the video communication device 10 or the display device connected to the video communication device 10, or may be disposed outside the display device, for example, in a position adjacent to the user.

The user input unit 150 may include a plurality of key buttons for user input or display a plurality of key buttons using a touch panel, and receive an input for controlling an operation of the image communication apparatus 10 from a user. .

Meanwhile, the user input unit 150 may be provided outside the image communication apparatus 10 or may be, for example, a remote controller having a plurality of key buttons for user input.

The controller 110 controls the operations of the video communication apparatus as described above, and may control the video call processor 120, the AV processor 115, and the user input unit 150, respectively.

The video communication device 10 may receive a video or voice call according to an Internet telephony service through a Voice Over Internet Protocol (VoIP) communication network, but the present invention is not limited thereto. In addition, the PSTN telephone network It can receive a general telephone call using a mobile phone call or a mobile phone call using a mobile communication network.

The video communication apparatus according to an embodiment of the present invention may acquire an image of a call counterpart while performing a video call, and store history information of the performed video call in correspondence with the acquired counterpart image.

For example, the controller 110 included in the video communication apparatus acquires the video of the call counterpart from the reception stream according to whether the user's request or a predetermined video acquisition condition is satisfied during the video call. The counterpart image may be stored in the storage unit 130 in correspondence with the video call history information.

Hereinafter, a method of managing video call history information according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 11.

3 is a flowchart illustrating a video call history management method according to an embodiment of the present invention, and the video call history management method shown in FIG. 3 is a configuration of a video communication apparatus according to the embodiment of the present invention shown in FIG. It will be described in conjunction with the block diagram showing the.

Referring to FIG. 3, the controller 110 of the video communication apparatus 10 acquires an image of a call counterpart during a video call in step 200.

For example, the user may input a user ID or IP address of the counterpart to request a video call connection with the counterpart, and the video communication apparatus 10 may be configured as described with reference to FIGS. 1 and 2. The method may be used to conduct a video call with the requested counterpart.

Meanwhile, the user may request to acquire an image of a call counterpart while the video call is being performed.

Referring to FIG. 4, the video call screen 300 includes an image 310 of a user, an image 320 of a call counterpart, video call detail information 330, counterpart information 340, and user information 350. Can be configured.

Meanwhile, the video call detail information 330 includes a video call date and time and information on the total call time, and buttons 331 to 334 for setting up a video call are displayed on the video call screen 300. Can be.

For example, "Cam." The button 331 is for designating a setting value for the camera 141 for acquiring a video call image of the user, and the "Video" button 332 is for the user and the counterpart image displayed on the video call screen 300 ( 310 and 320 are used to designate setting values.

In addition, the "Audio" button 333 is for designating setting values related to the user and the other party's voice that are output during the video call, and "Net." The button 334 may be for specifying a setting value for the network used for the video call.

Meanwhile, the other party information 340 displays information (for example, the other party's user ID and IP address) of the other party in the video call, and the user information 350 displays the user of the video communication device 10. Relevant information (eg, user's ID and IP address) may be displayed.

According to an embodiment of the present invention, the user selects the "Snapshot" button 353 displayed at the bottom of the video call screen 300 while the video call is in progress, and the call is currently displayed on the screen 300. By capturing the image 320 of the other party, a still image or a video including the face of the other party may be obtained.

The obtained counterpart image of the call counterpart may be stored in the storage 130, and the stored counterpart image may be stored in the storage 130 corresponding to the video call at the end of the video call. .

For example, if the user selects the "Snapshot" button 353 shorter than the preset reference time (for example, less than 0.5 second) during the video call, the counterpart image 320 at that time is captured. When the "Snapshot" button 353 is selected to be longer than a preset reference time (for example, 0.5 seconds or more), the "Snapshot" button 353 is selected as a still image. The counterpart image 320 during the time may be captured and stored in the storage 130 as a video.

In the above, an embodiment of the present invention has been described as an example of acquiring a counterpart image to be stored corresponding to call history information according to a user's request. However, the present invention is not limited thereto. The other party's image may be obtained.

More specifically, the control unit 110 of the video communication device 10 captures the counterpart image 120 every predetermined time (for example, every 10 seconds) while the video call is in progress, and stores the storage unit 130. Or an important screen (for example, an image at a time when a large movement of the counterpart user occurs) among the counterpart image 120 displayed on the screen 300 may be extracted and stored.

Meanwhile, as shown in FIG. 5, whenever the video communication apparatus 10 captures and stores the other party's image 120, the other party's consent may be requested.

For example, when the user of the video communication apparatus 10 selects the "Snapshot" button 353 and requests to acquire the counterpart image 120, the counterpart image 120 is captured and stored in the storage 130. Before this, the pop-up window 460 may be displayed on the screen 400 of the video communication device of the other party, requesting consent for capturing the video of the other party.

In this case, when the other party selects the "accept" button 461, the other party's image 120 is captured by the video communication apparatus 10 and stored in the storage unit 130. When the other party selects the "decline" button 462, the user The image acquisition operation requested by the user may not be performed.

According to another embodiment of the present invention, a plurality of counterpart images may be obtained in step 200, and an image to be stored corresponding to the video call history information among the plurality of counterpart images is stored by the user of the video communication apparatus 10. Or it may be selected and applied by the call counterpart.

In addition, the image communication apparatus 10 may process the counterpart image acquired in step 200 according to a preset condition and store the image in the storage 130.

For example, the AV processor 115 of the video communication apparatus 10 may enlarge or reduce the obtained counterpart image to the center of the other party's face, or perform brightness, sharpness, tint, or color correction. Or perform animations such as animation.

After the counterpart image is acquired and stored at the request of the user or when the preset image acquisition condition is satisfied during the video call as described above, the controller 110 matches the history information of the video call with the acquired counterpart image. Stored at 130 (step 210).

For example, when the video call is completed, history information about the terminated video call is collected and acquired, and the obtained history information is compared with the counterpart image previously stored in the storage 130 during the video call. Correspondingly, the data may be stored in the storage 130.

Meanwhile, the video call history information may include a video call date and time, an IP address and user ID of a call counterpart, incoming / outgoing call information, voice / video call information, etc. together with the video of the other party stored in the storage unit 130. have.

According to an embodiment of the present invention, the video call history information stored in the storage unit 130 together with the counterpart image acquired during the video call as described above, the display device connected to the video communication device 10 at the user's request Can be displayed on the screen.

Referring to FIG. 6, the standby screen 500 provided by the video communication apparatus 10 includes a "Call History" item 520 for displaying video call history information and a "Speed Call" for fast call connection using a speed dial number. "Item 530.

In addition, the standby screen 500, the user's video 510, the input window 540 for directly inputting the IP address or user ID of the other party to be connected, the call with the other party entered in the input window 540 Call button 540 for requesting a request, " Directory " button 542 for displaying a list of registered contacts, " Setup " button 543 for video call related settings, " System Info. " A button 544 and a "Call" button 545 for requesting a call connection may be provided.

As illustrated in FIG. 7, when the user selects the “Call History” item 520 on the idle screen 500, history information 521 to 524 about the video call may be displayed.

On the other hand, the history information displayed in the "Call History" item 520, the video call date and time, the IP address and user ID of the call counterpart, the incoming and outgoing information, and voice / History information such as video call information may be displayed corresponding to the counterpart video.

For example, the history information 521 of the video call performed with "User 1" on December 12, 2009 is displayed in the "Call History" item 520 together with the counterpart image 551 acquired during the video call. Can be displayed.

In addition, video call history information 524 with “User 4” as described with reference to FIGS. 4 and 5 may be included in the “Call History” item 520, and the video call history information 524 may be a call counterpart. It may be displayed to include an image 554 of "User 4".

Meanwhile, the counterpart image included in the video call history information 521 to 524 may be a moving image captured for a predetermined time as well as a still image. For example, in the case shown in FIG. The history information 522 may include a video of "User 2" obtained during the video call.

Referring to FIG. 8, when the user selects the video call history information 524 with "User 4" which is one of the "Call History" items 520 shown in FIG. 7, the video call history information 524 is displayed. It may be displayed on the screen 500.

For example, the video call history information 524 with the "User 4", together with the image 554 of the "User 4", the date and time of the video call, the IP address and user ID of the "User 4", Call-in / out information indicating that the call is an outgoing call and voice / video call information indicating that the call is a video call may be displayed.

Using the video call history information displayed as shown in FIGS. 7 and 8, the user can check the counterpart image acquired during the video call together with the text history information, thereby facilitating the contents of the video call. It can be recognized.

Meanwhile, the user may select the video call history information illustrated in FIG. 7 or 8 and request a video call connection with the counterpart corresponding to the corresponding history information.

For example, when the user selects the video call history information 523 with "User 3" on the screen 500 illustrated in FIG. 7 and then selects the "Call" button 545 at the bottom of the screen, illustrated in FIG. 9. As described above, a video call with "User 3" may be connected.

The video call connection as described above may be performed using the video call history information stored in the storage unit 130. More specifically, the video call connection may be performed using a user ID or an IP address included in the video call history information. Video calls with "User 3" may be connected.

According to another exemplary embodiment of the present invention, the video call history information stored in the storage unit 130 may include setting values applied to the corresponding video call. Settings stored as history information may be loaded and applied to the connected video call.

For example, the video call related setting value may be a camera setting value, a call image setting value, a call voice setting value, a network setting value, and the like, which are set using the setting buttons 331 to 334 illustrated in FIG. 4.

More specifically, the call history information 523 with "User 3" shown in FIG. 7 includes camera setting values, call image setting values, call voice setting values, and network setting values that were applied to the corresponding video call. If the user selects the "Call" button 545 to request a call connection with the "User 3", the image that the set values including the call history information 523 with the "User 3" are subsequently performed It can be applied to the currency as it is.

For example, the camera setting value may include a camera number and PTZ (Pan, Tilt, Zoom) values, and the call image setting value may include brightness, sharpness, tint, and RGB color value of the screen. Can be.

The call voice setting value may include a voice volume value set during a previous call, and may include the network setting value network bandwidth information and the like.

In addition, the user may select the video call history information shown in FIG. 7 or 8 and register the corresponding history information as contact information for the call counterpart.

For example, when the user selects the video call history information 521 with "User 1" on the screen 500 shown in FIG. 7 and selects the "Add" button 547 at the bottom of the screen, the screen 500 shown in FIG. As described above, the history information for "User 3" may be registered in the directory as contact information.

Referring to FIG. 10, in response to a request for registering a contact using call history information of a user, call history information for the “User 3” stored in the storage 130 is loaded, and the screen 500 for registering a contact is provided. ) May be displayed on the screen.

For example, an image 551, a user ID, and an IP address of the “User 3” included in the call history information are displayed, and the user uses the plurality of input windows 560 to 564 to display the displayed user ID. And an IP address or a group, a speed dial, and a call type.

Meanwhile, when the contact registration as described above is completed, registered contact information may be displayed on the directory screen 700 as shown in FIG. 11.

The directory screen 700 shown in FIG. 11 may appear when the user selects the "Directory" button 542 on the standby screen 500 as shown in FIG. 6 or 7.

Referring to FIG. 11, history information 521 for “User 1” registered as contact information by the method described with reference to FIGS. 9 and 10 may be included and displayed in the “My Contact” item 710. Can be.

In addition, the directory screen 700 may include a "Corporate Contact" item 720 for displaying a group contact and "" for displaying a call history, in addition to the "My Contact" item 710 for displaying contact information as described above. Call History "item 730 may be included.

Meanwhile, the user selects the "Add" button 711 included in the "My Contact" item 710, registers a new contact, or selects the contact information included in the "My Contact" item 710, and then displays the screen ( 700 may select the "Edit" button 742 or the "Call" button 743 at the bottom to edit the contact information or attempt a video call connection to the contact.

The video call history management method according to the present invention described above can be stored in a computer-readable recording medium that is produced as a program for execution on a computer. Examples of the computer-readable recording medium include ROM, RAM, CD- ROMs, magnetic tapes, floppy disks, optical data storage, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium may be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And, functional programs, codes and code segments for implementing the above method can be easily inferred by programmers of the technical field to which the present invention belongs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (23)

In the method of managing the video call history,
Obtaining a video of a call counterpart from a video call video; And
And storing the history information of the performed video call in association with the obtained counterpart image. The method of claim 1, wherein the acquiring of the image
A video call history management method of capturing a portion of a video call image displayed on a screen to obtain a still image or a video including the face of the call counterpart. The method of claim 1, wherein the acquiring of the image
Requesting consent of a call partner for the video acquisition. The method of claim 1, wherein the acquiring of the image
Obtaining a plurality of counterpart images; And
And receiving one of the obtained plurality of images from the call counterpart. The method of claim 1, wherein the acquiring of the image
And processing the acquired counterpart image according to a preset condition. The method of claim 5, wherein the processing step
And enlarge or reduce the counterpart image, correct or at least one of brightness, sharpness, tint, and color, or animate the video call history. The method of claim 1, wherein the video call history information
With the obtained counterpart image,
A video call history management method comprising at least one of a video call date and time, an IP address and a user ID of a call counterpart, incoming / outgoing information, and voice / video call information. The method of claim 1, wherein storing the history information
At the end of the video call, obtaining history information on the performed video call; And
And linking the acquired counterpart image with the acquired history information when the user requests or when the preset image acquisition condition is satisfied. The method of claim 8, wherein the image acquisition condition is
A video call history management method, which is a occurrence of an important screen among a preset capture time or the counterpart image. The method of claim 1,
Receiving a request for displaying a video call history from a user; And
And providing video call history information for at least one video call that has been previously performed to be displayed together with the obtained counterpart image. The method of claim 10,
Receiving any one of the displayed video call history information from a user; And
And connecting a video call with a counterpart corresponding to the selected history information. The method of claim 10,
Receiving any one of the displayed video call history information from a user; And
And registering the selected history information as contact information for the call counterpart. The method of claim 10, wherein the display of the video call history information
Video call history management method provided in the standby screen of the video call system. The method of claim 1, wherein the video call history information
And at least one of a camera setting value, a call image setting value, a call voice setting value, and a network setting value applied to the video call. 15. The method of claim 14,
And loading the set value stored as the video call history information according to a call counterpart and applying the stored value to the video call. A communication unit configured to transmit a transmission stream including AV data corresponding to a video and audio of a user, and to receive a reception stream including AV data corresponding to the video and audio of a video call counterpart;
A storage unit for storing history information on the performed video call; And
The storage unit acquires an image of the call counterpart from the received stream according to whether a user's request or a preset video acquisition condition is satisfied during the video call, and associates the obtained counterpart video with the video call history information. And a control unit for storing in the video communication apparatus. 17. The apparatus of claim 16, wherein the control unit
And a still image or a moving image including a face of the other party of the call by capturing a portion of the video call image displayed on the screen. The method of claim 16, wherein the video call history information
With the obtained counterpart image,
And at least one of a video call date and time, an IP address and user ID of a call counterpart, incoming / outgoing information, and voice / video call information. 17. The method of claim 16,
And an interface unit configured to output video call history information to the outside of the at least one video call, which is previously displayed, together with the obtained counterpart image. 20. The method of claim 19,
Further comprising a user interface for receiving any one of the displayed video call history information from the user,
And the control unit connects a video call with a counterpart corresponding to the selected history information. The method of claim 20, wherein the control unit
And register the selected history information as contact information for the call counterpart. The method of claim 16, wherein the image acquisition condition is
And an occurrence of an important screen among a preset capture time or the counterpart image. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1 to 15 on a computer.

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