Adaptive integrating duplicated vertices in mesh motion vector coding

An apparatus for video decoding, 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 encoded volumetric data of at least one three-dimensional (3D) visual content, the encoded volumetric data representing a mesh sequence of a plurality of meshes of the 3D visual content;
• determining code configured to cause the at least one processor to determine a syntax obtained with the encoded volumetric data, the syntax signaling whether to predict vertices of the plurality of meshes as a group;
• and
• decoding code configured to cause the at least one processor to decode the encoded volumetric data by predicting the vertices as the group based on the syntax element, at least two of the vertices of the group are not edge connected, and the syntax is based on an adaptive decision to turn on or off prediction of the vertices of the plurality of meshes as the group.

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

• obtain encoded volumetric data of at least one three-dimensional (3D) visual content, the encoded volumetric data representing a mesh sequence of a plurality of meshes of the 3D visual content;
• determine a syntax obtained with the encoded volumetric data, the syntax signaling whether to predict vertices of the plurality of meshes as a group;
• and
• decode the encoded volumetric data by predicting the vertices as the group based on the syntax element, at least two of the vertices of the group are not edge connected, and the syntax is based on an adaptive decision to turn on or off prediction of the vertices of the plurality of meshes as the group.