THREE-DIMENSIONAL DATA CODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA CODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE

• Main Authors: SUGIO TOSHIYASU, IGUCHI YOSHITAKA
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

A three-dimensional data coding method which codes a plurality of subspaces acquired by dividing a subject space including a plurality of three-dimensional points, thereby generates a plurality of pieces of coded data (S5181), and generates a bit stream including first information (tile_null_flag) with respect to each of the plurality of subspaces (S5182). Each of the plurality of pieces of first information indicates whether second information indicating a structure of a corresponding subspace is included in the bit stream or not. For example, the second information may include information which indicates coordinates of an origin of the corresponding subspace. 三维数据编码方法通过对将包含多个三维点的对象空间分割而成的多个子空间进行编码，生成多个编码数据(S5181)，生成包含对于多个子空间的各自的第1信息(tile_null_flag)的比特流(S5182)，多个第1信息的各自表示在比特流中是否包含对应的子空间的结构的第2信息。例如，第2信息也可以包含表示对应的子空间的原点的坐标的信息。