Abstract: An information processing device includes circuitry to obtain coordinates of an attention point in an area of which a video image is to be displayed, based on information indicating a designated area and received from a terminal device, select an image capturing device based on the coordinates of the attention point, and obtain an angle of view in which angles each of which is formed by a corresponding one of two first straight lines and a second straight line are adjusted to have same degrees with each other. Each first straight line connects the image capturing device and a corresponding one of ends of the area. The second straight line connects the image capturing device and the attention point. The circuitry determines a display area adjusted based on the angle of view and transmits, to the terminal device, information on the image capturing device and information on the display area.

Abstract: A communication terminal includes circuitry configured to: perform first transmission of connection request information indicating a connection request to a first explainer terminal that preferentially responds to the connection request from the communication terminal provided in an unmanned store; and receive response information indicating a response of connection availability from the first explainer terminal.

Abstract: A communication system includes a first terminal device, a second terminal device, and an advice providing device. The first terminal device is operated by an operator. The second terminal device is operated by a guest. The second terminal device communicates with the first terminal device through a network. The advice providing device includes circuitry that determines advice for the operator based on voice data including first voice data that is related to the operator and transmitted from the first terminal device and second voice data that is related to the guest and transmitted from the second terminal device. The circuitry of the advice providing device further transmits the advice to the first terminal device. The first terminal device receives the advice and displays, on a display, the advice.

Abstract: A communication terminal includes circuitry configured to: perform first transmission of connection request information indicating a connection request to a first explainer terminal that preferentially responds to the connection request from the communication terminal provided in an unmanned store; and receive response information indicating a response of connection availability from the first explainer terminal.

Abstract: A communication system includes a first terminal device, a second terminal device, and an advice providing device. The first terminal device is operated by an operator. The second terminal device is operated by a guest. The second terminal device communicates with the first terminal device through a network. The advice providing device includes circuitry that determines advice for the operator based on voice data including first voice data that is related to the operator and transmitted from the first terminal device and second voice data that is related to the guest and transmitted from the second terminal device. The circuitry of the advice providing device further transmits the advice to the first terminal device. The first terminal device receives the advice and displays, on a display, the advice.

Abstract: An image communication system includes a first communication terminal including first circuitry and a second communication terminal including second circuitry. The first circuitry of the first communication terminal transmits, to the second communication terminal, first image data representing a first image and second image data representing a second image. The first circuitry of the first communication terminal transmits, to the second communication terminal, position information indicating a predetermined position on the first image. The second circuitry of the second communication terminal combines, based on the position information, the second image with the first image at the predetermined position on the first image to generate a combined image. The second circuitry of the second communication terminal displays, on a display, the combined image.

Abstract: A communication terminal includes circuitry. The circuitry receives data of a whole image, data of a material image, and superimposition position information indicating a position where the material image is to be superimposed on the whole image, the data of the whole image, the data of the material image, and the superimposition position information being transmitted from another communication terminal. The circuitry superimposes the material image on the whole image at the position indicated by the superimposition position information. The circuitry causes a display to display a predetermined-area image, which is an image of a predetermined area of the whole image. When at least a part of the material image being superimposed is not displayed in the predetermined-area image, the circuitry changes the position where the material image is superimposed such that the material image is displayed at a predetermined position in the predetermined-area image.

Abstract: A communication terminal for displaying a predetermined-area image, which is an image of a part of a whole image, includes circuitry. The circuitry receives first predetermined information specifying a first predetermined area, the first predetermined information being transmitted from another communication terminal displaying a first predetermined-area image, which is an image of the first predetermined-area. The circuitry calculates a position of the first predetermined area with respect to a second predetermined area, based on the first predetermined information received and second predetermined information specifying the second predetermined area, the second predetermined area being an area of a second predetermined-area image being displayed by the communication terminal.

Abstract: An image data communication system includes: a first communication terminal including first circuitry; and a second communication terminal including second circuitry. The first circuitry of the first communication terminal is configured to transmit a plurality of pieces of image data and layer display order information indicating a layer display order in which a plurality of images represented by the plurality of pieces of image data are to be displayed. The second circuitry of the second communication terminal is configured to display the plurality of images represented by the plurality of pieces of image data transmitted from the first communication terminal in the layer display order based on the layer display order information transmitted from the first communication terminal.

Abstract: An image communication system includes a first communication terminal including first circuitry and a second communication terminal including second circuitry. The first circuitry of the first communication terminal transmits, to the second communication terminal, first image data representing a first image and second image data representing a second image. The first circuitry of the first communication terminal transmits, to the second communication terminal, position information indicating a predetermined position on the first image. The second circuitry of the second communication terminal combines, based on the position information, the second image with the first image at the predetermined position on the first image to generate a combined image. The second circuitry of the second communication terminal displays, on a display, the combined image.

Abstract: A communication terminal includes circuitry. The circuitry receives data of a whole image, data of a material image, and superimposition position information indicating a position where the material image is to be superimposed on the whole image, the data of the whole image, the data of the material image, and the superimposition position information being transmitted from another communication terminal. The circuitry superimposes the material image on the whole image at the position indicated by the superimposition position information. The circuitry causes a display to display a predetermined-area image, which is an image of a predetermined area of the whole image. When at least a part of the material image being superimposed is not displayed in the predetermined-area image, the circuitry changes the position where the material image is superimposed such that the material image is displayed at a predetermined position in the predetermined-area image.

Abstract: A management system, a communication system, and a management method. The management system and the management method include receiving a request to associate identification information of a first user with identification information of a first client application that the first user is authorized to use, and identification information of a second user who has been authenticated and has been authorized to use a second client application, determining whether the identification information of the second user matches certain information that corresponds to the first client application, and associating the identification information of the first user with the identification information of the first client application when the determining determines that the identification information of the second user matches the certain information that corresponds to the first client application.

Abstract: An image communication system includes a first communication terminal including first circuitry and a second communication terminal including second circuitry. The first circuitry of the first communication terminal transmits, to the second communication terminal, first image data representing a first image and second image data representing a second image. The first circuitry of the first communication terminal transmits, to the second communication terminal, position information indicating a predetermined position on the first image. The second circuitry of the second communication terminal combines, based on the position information, the second image with the first image at the predetermined position on the first image to generate a combined image. The second circuitry of the second communication terminal displays, on a display, the combined image.

Abstract: A communication terminal includes circuitry. The circuitry receives data of a whole image, data of a material image, and superimposition position information indicating a position where the material image is to be superimposed on the whole image, the data of the whole image, the data of the material image, and the superimposition position information being transmitted from another communication terminal. The circuitry superimposes the material image on the whole image at the position indicated by the superimposition position information. The circuitry causes a display to display a predetermined-area image, which is an image of a predetermined area of the whole image. When at least a part of the material image being superimposed is not displayed in the predetermined-area image, the circuitry changes the position where the material image is superimposed such that the material image is displayed at a predetermined position in the predetermined-area image.

Abstract: A communication terminal for displaying a predetermined-area image, which is an image of a part of a whole image, includes circuitry. The circuitry receives first predetermined information specifying a first predetermined area, the first predetermined information being transmitted from another communication terminal displaying a first predetermined-area image, which is an image of the first predetermined-area. The circuitry calculates a position of the first predetermined area with respect to a second predetermined area, based on the first predetermined information received and second predetermined information specifying the second predetermined area, the second predetermined area being an area of a second predetermined-area image being displayed by the communication terminal.

Abstract: An image data communication system includes: a first communication terminal including first circuitry; and a second communication terminal including second circuitry. The first circuitry of the first communication terminal is configured to transmit a plurality of pieces of image data and layer display order information indicating a layer display order in which a plurality of images represented by the plurality of pieces of image data are to be displayed. The second circuitry of the second communication terminal is configured to display the plurality of images represented by the plurality of pieces of image data transmitted from the first communication terminal in the layer display order based on the layer display order information transmitted from the first communication terminal.

Abstract: A communication terminal for displaying a predetermined-area image includes circuitry. The circuitry receives first predetermined-area information indicating a first predetermined area, the first predetermined-area information being transmitted from another communication terminal displaying a first predetermined-area image. The circuitry calculates a direction of the first predetermined area with respect to a second predetermined area in a whole image, based on the first predetermined-area information and second predetermined-area information. The second predetermined area is an area of a second predetermined-area image being displayed by the communication terminal. The circuitry controls a display to display the second predetermined-area image including display direction information indicating the calculated direction. The circuitry accepts designation of the display direction information.

Abstract: A communication terminal for displaying a predetermined-area image, which is an image of a part of a whole image, includes circuitry. The circuitry receives first predetermined information specifying a first predetermined area, the first predetermined information being transmitted from another communication terminal displaying a first predetermined-area image, which is an image of the first predetermined-area. The circuitry calculates a position of the first predetermined area with respect to a second predetermined area, based on the first predetermined information received and second predetermined information specifying the second predetermined area, the second predetermined area being an area of a second predetermined-area image being displayed by the communication terminal.

Abstract: A communication terminal includes circuitry. The circuitry receives data of a whole image, data of a material image, and superimposition position information indicating a position where the material image is to be superimposed on the whole image, the data of the whole image, the data of the material image, and the superimposition position information being transmitted from another communication terminal. The circuitry superimposes the material image on the whole image at the position indicated by the superimposition position information. The circuitry causes a display to display a predetermined-area image, which is an image of a predetermined area of the whole image. When at least a part of the material image being superimposed is not displayed in the predetermined-area image, the circuitry changes the position where the material image is superimposed such that the material image is displayed at a predetermined position in the predetermined-area image.

Abstract: An image communication system includes a first communication terminal including first circuitry and a second communication terminal including second circuitry. The first circuitry of the first communication terminal transmits, to the second communication terminal, first image data representing a first image and second image data representing a second image. The first circuitry of the first communication terminal transmits, to the second communication terminal, position information indicating a predetermined position on the first image. The second circuitry of the second communication terminal combines, based on the position information, the second image with the first image at the predetermined position on the first image to generate a combined image. The second circuitry of the second communication terminal displays, on a display, the combined image.