Display control method and system for executing the display control method

The display control method, comprising:

• generating visual-field image data, which represents a visual-field image, based on a line-of-sight direction of a user and 360-degree space image data;
• receiving captioned image data that represents a captioned image, timing information that indicates when to display the captioned image in the visual-field image, and schedule information that indicates a time to start receiving each piece of the visual-field image data or each piece of the 360-degree space image data created by time division, wherein receiving the captioned image data occurs prior to generating the visual-field image data, and receiving the captioned image data comprises receiving all pieces of the captioned image data at one time;
• transmitting a request to deliver the visual-field image data, wherein the transmitting the request to deliver the visual-field image data occurs after the receiving of the captioned image data;
• and
• displaying on a head-mounted display (HMD) a composite image that is a composite of the visual-field image and the captioned image based on the timing information, the schedule information, the visual-field image data, and the captioned image data, wherein displaying the composite image comprises displaying the composite image so that the captioned image is displayed at a given place in the visual-field image irrespective of a change in the line-of-sight direction of the user;
• synchronizing a play start time of the visual-field image and a play start time of the captioned image, wherein the play start time of the visual-field image and the play start time of the captioned image are based on a time the HMD starts receiving the visual-filed image data;
• and
• the display control method further comprises one of:
• receiving each of the pieces of the 360-degree space image data that is created by time division from a server based on the schedule information;
• or
• receiving each of the pieces of the visual-field image data that is created by time division from the server based on the schedule information.

A system for executing a display control method, the system comprising:

• at least one processor;
• and
• a non-transitory computer readable medium for storing instructions connected to the at least one processor, wherein the at least one processor is configured to execute the instructions for:
• generating visual-field image data, which represents a visual-field image, based on a line-of-sight direction of a user and 360-degree space image data;
• receiving captioned image data, which represents a captioned image, and the captioned image includes a first time period for displaying information and a second time period for not displaying the information, wherein the receiving of the captioned image data occurs prior to the generating of the visual-field image data;
• transmitting a request to deliver the visual-field image data, wherein the transmitting the request to deliver the visual-field image data occurs after the receiving of the captioned image data;
• and
• generating instructions for displaying, on a head-mounted display (HMD), a composite image that is a composite of the visual-field image and the captioned image, based on the visual-field image data and the captioned image data,
• wherein generating instructions for displaying the composite image comprises:
• synchronizing a play start time of the visual-field image and a play start time of the captioned image;
• and
• displaying the captioned image at a given place in the visual-field image irrespective of a change in the line-of-sight direction of the user.