Method of transmitting omnidirectional video, method of receiving omnidirectional video, device for transmitting omnidirectional video, and device for receiving omnidirectional video

A device for transmitting 360 degree video, comprising:

• an image acquisition unit for obtaining image data captured by at least one camera;
• a projection unit for stitching the image data and mapping the image data onto a packed picture;
• a video encoder for encoding the packed picture;
• a controller for generating one or more media tracks for the packed picture and audio data, and generating timed metadata track for specifying a sphere region,
• wherein the timed metadata track includes first information for specifying a first rotation value related to a center of the sphere region based on a yaw axis, second information for specifying a second rotation value related to the center of the sphere region based on a pitch axis, third information for specifying a first range related to the sphere region based on the yaw axis, and fourth information for specifying a second range related to the sphere region based on the pitch axis,
• wherein the timed metadata track is linked to the one or more media tracks;
• and
• a transmitter for transmitting at least one segment including the one or more media tracks and the timed metadata track.

A digital receiver for processing 360 degree video, comprising:

• a receiving module configured to receive at least one segment including one or more media tracks related to the 360 degree video and audio data, and timed metadata track for specifying a sphere region,
• wherein the timed metadata track includes first information for specifying a first rotation value related to a center of the sphere region based on a yaw axis, second information for specifying a second rotation value related to the center of the sphere region based on a pitch axis, third information for specifying a first range related to the sphere region based on the yaw axis, and fourth information for specifying a second range related to the sphere region based on the pitch axis,
• wherein the timed metadata track is linked to the one or more media tracks;
• a video decoder configured to decode the 360 degree video;
• a rendering module configured to render the 360 degree video;
• and
• a display module configured to display the 360 degree video.

A method for processing 360 degree video in a digital receiver, comprising:

• receiving at least one segment including one or more media tracks related to the 360 degree video and audio data, and timed metadata track for specifying a sphere region,
• wherein the timed metadata track includes first information for specifying a first rotation value related to a center of the sphere region based on a yaw axis, second information for specifying a second rotation value related to the center of the sphere region based on a pitch axis, third information for specifying a first range related to the sphere region based on the yaw axis, and fourth information for specifying a second range related to the sphere region based on the pitch axis,
• wherein the timed metadata track is linked to the one or more media tracks;
• decoding the 360 degree video;
• rendering the 360 degree video;
• and
• displaying the 360 degree video.