Abstract: A display terminal includes circuitry that: displays a predetermined-area moving image; receives designation of a first object visible in a first predetermined-area moving image being a predetermined-area moving image in a first display area and representing a first predetermined area of the wide-view moving image; receives designation of a second object visible in a second predetermined-area moving image being a predetermined-area moving image in a second display area and representing a second predetermined area of the wide-view moving image; displays the first predetermined-area moving image such that movement of the first object is tracked to make the first object continuously visible in the first predetermined-area moving image within the first display area; and displays the second predetermined-area moving image such that movement of the second object is tracked to make the second object continuously visible in the second predetermined-area moving image within the second display area.

Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: A communication terminal includes a memory, a receiver, and circuitry. The memory stores image data identification information identifying image data in association with image type information indicating a type of an image represented by the image data. The receiver receives specific image data and specific image data identification information identifying the specific image data from another communication terminal. The circuitry controls a display to display a specific image represented by the specific image data received by the receiver in a size according to the image type information associated with the specific image identification information in the memory.

Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: A management system is provided that includes a memory storing a program and a processor configured to execute the program to implement processes of receiving a communication start request from a first terminal for starting communication with a second terminal corresponding to a communication counterpart of the first terminal, determining whether communication can be established between the first terminal and the second terminal based on information on a codec supported by the first terminal and information on a codec supported by the second terminal, and transmitting a determination result of the determination to the first terminal.

Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: A communication terminal includes: a receiver to receive a plurality of items of content data respectively from a plurality of counterpart communication terminals through a session established between the communication terminal and the counterpart communication terminals via a communication network; and circuitry to: determine an available band of the communication network; select, from among the plurality of items of content data, one or more items of content data receivable by the communication terminal in accordance with the available band of the communication network and bands being used to receive the plurality of items of content data; and control a display to display information indicating the available band of the communication network in association with the selected one or more items of content data receivable by the communication terminal.

Abstract: An information transmission apparatus includes circuitry to manage a log of content data transmitted by one or more of a plurality of communication terminals during a session. The session being established between the plurality of communication terminals to transmit the content data between the plurality of communication terminals. The circuitry also receives information on a transmission destination of the log from at least one of the plurality of communication terminals before the session ends. The circuitry also transmits the log of content data being managed to the transmission destination based on the received information.

Abstract: A communication terminal includes a memory, a receiver, and circuitry. The memory stores image data identification information identifying image data in association with image type information indicating a type of an image represented by the image data. The receiver receives specific image data and specific image data identification information identifying the specific image data from another communication terminal. The circuitry controls a display to display a specific image represented by the specific image data received by the receiver in a size according to the image type information associated with the specific image identification information in the memory.

Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: A communication apparatus includes circuitry to: obtain, before transmission of video data to a counterpart communication apparatus via a network, communication environment information to be used for determining magnitude of variation of communication quality of the counterpart communication apparatus; determine, using the obtained communication environment information, a coding setting of the video data in accordance with the magnitude of variation of the communication quality of the counterpart communication apparatus; and code the video data in accordance with the determined coding setting; and a transmitter to transmit the coded video data to the counterpart communication apparatus via the network.

Abstract: A communication apparatus communicable with a counterpart communication apparatus, includes: circuitry to acquire receiver-side environment information indicating a communication environment of the counterpart communication apparatus that receives content data from the communication apparatus, determine a number of layers of the content data for scalable coding, based on the receiver-side environment information, and code the content data in the determined number of layers by using the scalable coding; and a transmitter to transmit the coded content data to the counterpart communication apparatus through a communication network.

Abstract: An information processing system includes a first information processing terminal and an information processing apparatus coupled to the first information processing terminal. The information processing system includes a storage unit configured to store codec data indicating a codec that can be used for performing communication between the first information processing terminal and a second information processing terminal other than the first information processing terminal; and a determining unit configured to make a first determination of determining whether there is a codec that can be used by both the first information processing terminal and the second information processing terminal, based on the codec data.

Abstract: A communication terminal includes: a receiver to receive a plurality of items of content data respectively from a plurality of counterpart communication terminals through a session established between the communication terminal and the counterpart communication terminals via a communication network; and circuitry to: determine an available band of the communication network; select, from among the plurality of items of content data, one or more items of content data receivable by the communication terminal in accordance with the available band of the communication network and bands being used to receive the plurality of items of content data; and control a display to display information indicating the available band of the communication network in association with the selected one or more items of content data receivable by the communication terminal.

Abstract: A communication apparatus includes circuitry to: obtain, before transmission of video data to a counterpart communication apparatus via a network, communication environment information to be used for determining magnitude of variation of communication quality of the counterpart communication apparatus; determine, using the obtained communication environment information, a coding setting of the video data in accordance with the magnitude of variation of the communication quality of the counterpart communication apparatus; and code the video data in accordance with the determined coding setting; and a transmitter to transmit the coded video data to the counterpart communication apparatus via the network.

Abstract: Disclosed is an information processing system including a first information processing terminal and an information processing apparatus coupled to the first information processing terminal. The information processing system includes a storage configured to store codec data, the codec data including at least one first codec capable of being used for performing first communications between the first information processing terminal and a second information processing terminal differing from the first information processing terminal, a determiner configured to determine a second codec for performing second communications between the first information processing terminal, the second information processing terminal, and a third information processing terminal differing from the second information processing terminal, based on the codec data, and a switcher configured to switch a third codec currently used for performing the first communications, the third codec being selected from the first codec.

Abstract: A management system is provided that includes a memory storing a program and a processor configured to execute the program to implement processes of receiving a communication start request from a first terminal for starting communication with a second terminal corresponding to a communication counterpart of the first terminal, determining whether communication can be established between the first terminal and the second terminal based on information on a codec supported by the first terminal and information on a codec supported by the second terminal, and transmitting a determination result of the determination to the first terminal.

Abstract: An information processing system includes a first information processing terminal and an information processing apparatus coupled to the first information processing terminal. The information processing system includes a storage unit configured to store codec data indicating a codec that can be used for performing communication between the first information processing terminal and a second information processing terminal other than the first information processing terminal; and a determining unit configured to make a first determination of determining whether there is a codec that can be used by both the first information processing terminal and the second information processing terminal, based on the codec data.

Abstract: Disclosed is an information processing system including a first information processing terminal and an information processing apparatus coupled to the first information processing terminal. The information processing system includes a storage configured to store codec data, the codec data including at least one first codec capable of being used for performing first communications between the first information processing terminal and a second information processing terminal differing from the first information processing terminal, a determiner configured to determine a second codec for performing second communications between the first information processing terminal, the second information processing terminal, and a third information processing terminal differing from the second information processing terminal, based on the codec data, and a switcher configured to switch a third codec currently used for performing the first communications, the third codec being selected from the first codec.