Encoding method, decoding method, encoding device, and decoding device

Abstract

This encoding method is executed by an encoding device for encoding a motion vector of a vertex included in a three-dimensional mesh, and comprises: determining whether or not to encode a motion vector as a fixed value for each group, which is a unit for motion vector prediction (S4601); and transmitting information indicating a mode for encoding the motion vector as a fixed value to a decoding device upon determining to encode the motion vector as a fixed value (S4602).