Abstract: A server may include a communication interface for receiving a log in request for a video call service from a terminal, and for receiving at least one information to be used to determine a country of a log in attempt from the terminal; a memory for storing country information received from the terminal when subscribing the video call service of the terminal; and a processor for determining the country of the log in attempt of the terminal based on the at least one information, comparing a prestored country information corresponding to the terminal with the determined country of the log in attempt, and allowing the log in of the terminal depending on a result of the comparison.

Abstract: A mediating method by a mediating device comprises receiving a first list including at least one item from a first terminal and receiving at least one list from at least one terminal different from the first terminal, searching for a list including an item corresponding to at least one item among the at least one item of the first list, among the received at least one list, and transmitting information on the corresponded item, according to a result of the search, to each of the first terminal and a terminal which provides the list including the item corresponding to the at least one item among the at least one terminal.

Abstract: A video call mediating method includes: connecting, by a first terminal and a second terminal, to a video call platform; extracting a first identifier (ID) of a user of the first terminal and a second ID of a user of the second terminal, that is not displayed on the first terminal and the second terminal, during a video call; creating a first identification code for the first terminal and a second identification code of the second terminal from the first ID and the second ID, respectively; establishing a first video call session between the first terminal and the second terminal; creating a first image and a second image corresponding to the first terminal and the second terminal, respectively, with reference to the first identification code and the second identification code, respectively; and displaying the first image and the second image on a display of the first terminal and on a display of the second terminal, respectively.

Abstract: A method of providing an interactable visual object capable of being manipulated in terminals on both sides during a video call and a system performing the same.

Abstract: A computer program is stored in a computer-readable recording medium to implement a test group distribution method in a server device. The test group distribution method includes: generating identification information of a first test to be performed, differently from identification information of at least one test that is registered in advance, wherein the first test is performed by a plurality of user terminals classified into a plurality of groups; generating a unique identifier of each of users by using a first key comprising identification information of each user and a second key comprising the identification information of the first test; and determining test group information of each user based on the unique identifier of each user, the test group information corresponding to a group to which each user belongs.

Abstract: The communication method includes performing, by a first terminal, consecutive video call with at least one or more second terminal; selecting, by the first terminal, at least one or more representative frame from among a plurality of frames of an image being photographed during each video call; detecting, by the first terminal, a face from the at least one or more representative frame; generating, by the first terminal, a face recognition result that includes information on a number of the faces detected from the at least one or more representative frame; outputting, by the first terminal, the face recognition result to a server; and upon completion of the video call with the at least one or more second terminal, performing, by the first terminal, video call with a third terminal selected based on the face recognition result from the server.

Abstract: An electronic apparatus making a video call includes a processor dividing an image of a user of the electronic apparatus into a plurality of areas and editing an area, which is not selected from the user, from among the plurality of areas to generate the edited image, an input device receiving a selection input to select at least one area among the plurality of areas from the user, and a communication device transmitting the edited image to an electronic apparatus of a video call counterpart.

Abstract: There is provided an application stored in a computer-readable storage medium and enabling a first terminal to perform a method of providing a video call service, the method includes: establishing a video call session between the first terminal and a second terminal; displaying an exposure control area for controlling an exposure area of an image of a first user displayed on the second terminal; receiving an input of the first user for controlling the exposure control area; and transmitting a signal for controlling the exposure area to the second terminal in response to the input of the first user.

Abstract: A method for providing a video call service of a terminal according to an embodiment includes establishing a video call session with a second terminal, transmitting a first video that is a photographed video of a first user, from the first terminal to the second terminal, modulating a second video that is a photographed video of a second user and that is received from the second terminal, to a first intensity, and displaying the modulated second video, detecting a predetermined event while the video call session is being maintained, and controlling an intensity of the modulation based on the predetermined event.

Abstract: One embodiment relates to a video communication device and video communication method, capable of preventing a user who is making a video communication from being exposed to an inappropriate image from the other party and may provide a video communication method comprising establishing a video communication session with a first terminal, receiving an image stream from the first terminal through the video communication session, examining at least one first image selected from images included in the image stream, displaying a message suggesting reporting a user of the first terminal as an abusive user when a second image included in the at least one first image includes an abusive element, receiving input of confirmation in response to the displaying the message, and transmitting the reporting a user of the first terminal as an abusive user and the second image to a server in response to the received input of confirmation.

Abstract: The video call method includes establishing, by a first terminal, a first video call session with a second terminal; establishing, by the first terminal, a second video call session with a third terminal; displaying, by the first terminal, a first video received from the second terminal through the first video call session and a second video received from the third terminal through the second video call session on a first display area and on a second display area, respectively; detecting, by the first terminal, a predetermined event; terminating, by the first terminal, one video call session among the plurality of video call sessions in response to the detecting the predetermined event; establishing, by the first terminal, a third video call session with a fourth terminal; displaying, by the first terminal, a third video received from the fourth terminal through the third video call session on a third display area.

Abstract: An image processing system, and a method and computer readable recording medium thereof are disclosed. The image processing method according to an embodiment of the present disclosure includes obtaining a first image using a user terminal that includes a photographing device, detecting a first object group that includes at least one object from the first image, obtaining a second image using the user terminal, detecting a second object group that includes at least one object from the second image, creating a new object by combining the first object group and the second object group, and displaying the created new object on a display device of the user terminal.

Abstract: One embodiment relates to a video communication device and video communication method, capable of preventing a user who is making a video communication from being exposed to an inappropriate image from the other party and may provide a video communication method comprising establishing a video communication session with a first terminal, receiving an image stream from the first terminal through the video communication session, examining at least one first image selected from images included in the image stream, displaying a message suggesting reporting a user of the first terminal as an abusive user when a second image included in the at least one first image includes an abusive element, receiving input of confirmation in response to the displaying the message, and transmitting the reporting a user of the first terminal as an abusive user and the second image to a server in response to the received input of confirmation.

Abstract: A method of providing real-time translation for video chat is provided. The method includes: continuously receiving first-language voice data and at least one second-language word from a first terminal; continuously displaying the at least one second-language word at the same time as reproduction of the voice data; acquiring a second-language translation of an ended sentence included in a voice recognition result for the voice data; and substituting at least one word, which corresponds to the ended sentence in the displayed at least one second-language word, with the acquired translation. The at least one second-language word corresponds to respective words included in the voice recognition result for the voice data.

Abstract: One or more embodiment relates to a video communication device, video communication method, and a video communication mediating method, which are capable of preventing a user in a video communication from being exposed to an inappropriate image or sound from the other party. One or more embodiment may provide a video communication method comprising establishing a first video communication session with a first terminal, consecutively receiving images or sounds from the first terminal through the first video communication session, examining at least a portion of images or sounds received in a period of recent specific time among the received images or sounds, and blocking an output of at least a portion of the received images or sounds or reporting a user of the first terminal as an abusive user to a first server according to the result of the examining.

Abstract: A mediating method by a mediating device comprises receiving a first list including at least one item from a first terminal and receiving at least one list from at least one terminal different from the first terminal, searching for a list including an item corresponding to at least one item among the at least one item of the first list, among the received at least one list, and transmitting information on the corresponded item, according to a result of the search, to each of the first terminal and a terminal which provides the list including the item corresponding to the at least one item among the at least one terminal.

Abstract: Disclosed are a method of learning relationship among characters in video call or its background, temporal and spatial information, and visual objects and automatically recommending and providing a visual object using the relationship, and a system configured to execute the method. A method of providing video call may include: storing a visual object selection model including relation information between at least one visual object and at least one selection factor, by a video call providing system; and automatically determining, by the video call providing system, a recommended visual object to be displayed on at least one of a terminal and a counterpart terminal of the terminal performing video call, at a point of time specified for displaying a visual object, based on the visual object selection model.

Abstract: The video call method includes establishing, by a first terminal, a first video call session with a second terminal; establishing, by the first terminal, a second video call session with a third terminal; displaying, by the first terminal, a first video received from the second terminal through the first video call session and a second video received from the third terminal through the second video call session on a first display area and on a second display area, respectively; detecting, by the first terminal, a predetermined event; terminating, by the first terminal, one video call session among the plurality of video call sessions in response to the detecting the predetermined event; establishing, by the first terminal, a third video call session with a fourth terminal; displaying, by the first terminal, a third video received from the fourth terminal through the third video call session on a third display area.

Abstract: A mediating method may include: preparing at least two lists that respectively correspond to different values of a specific feature and that each of which includes at least one item; receiving first information about a first terminal or a user of the first terminal from the first terminal; deriving a value corresponding to the specific feature using the received first information; selecting a first list from among the at least two lists using the derived value; determining whether a first item matching the user of the first terminal is present in the at least one item included in the first list using the first information; and when it is determined that the first item is present in the first list, transmitting second information corresponding to the first item to the first terminal, or transmitting third information corresponding to the first terminal to a second terminal corresponding to the first item.

Abstract: Provided is an application stored in a computer-readable storage medium to perform a method of providing a video call service, the method including, in a first terminal, establishing a video call session between the first terminal and a second terminal; modulating and displaying an area of an image of a second user, except for an exposure area, the image of the second user being displayed in the first terminal; detecting a predetermined event during the video call session; and controlling a size of the exposure area based on the predetermined event.