Video coding process with a syntax element signalling of an assignment function used by a cube-based projection and associated video decoding process

摘要

A video coding process includes: encoding a projection-based frame to generate part of a bitstream, representing at least part of a 360-degree content of a sphere over a cube-based projection on projection surfaces, and the projection-based frame displays projection surfaces, packed in a cube-based projection device; and signal at least one syntax element over the bitstream, with at least one syntax element associated with an image function used by the cube-based projection to determine sample locations for each of the projection surfaces.