Mesh vertex displacements coding

An apparatus for video encoding, the apparatus comprising:

• at least one memory configured to store computer program code;
• at least one processor configured to access the computer program code and operate as instructed by the computer program code, the computer program code including:
• obtaining code configured to cause the at least one processor to obtain an input mesh corresponding to volumetric data of at least one three-dimensional (3D) visual content;
• deriving code configured to cause the at least one processor to derive a curve of a mesh sequence from the input mesh corresponding to the volumetric data, the curve comprising a plurality of vertices of the input mesh;
• subdividing code configured to cause the at least one processor to subdivide the derived curve of the mesh sequence by adding a plurality of subdivided vertices;
• computing code configured to cause the at least one processor to compute a displacement vector for each of the plurality of subdivided vertices;
• and
• entropy encoding code configured to cause the at least one processor to entropy encode the volumetric data based on the displacement vector from at least one of the subdivided vertices.

A non-transitory computer readable medium storing a program causing a computer to:

• obtain an input mesh corresponding to volumetric data of at least one three-dimensional (3D) visual content;
• derive a curve of a mesh sequence from the input mesh corresponding to the volumetric data, the curve comprising a plurality of vertices of the input mesh;
• subdivide the derived curve of the mesh sequence by adding a plurality of subdivided vertices;
• compute a displacement vector for each of the plurality of subdivided vertices;
• and
• entropy encode the volumetric data based on the displacement vector from at least one of the subdivided vertices.