- 专利标题： THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE
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申请号： US16934630申请日： 2020-07-21
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公开(公告)号： US20200351519A1公开(公告)日： 2020-11-05
- 发明人: Toshiyasu SUGIO , Tatsuya KOYAMA , Chi WANG , Pongsak LASANG
- 申请人： Panasonic Intellectual Property Corporation of America
- 主分类号： H04N19/597
- IPC分类号： H04N19/597 ; H04N19/91 ; H04N19/103
摘要：
A three-dimensional data encoding method includes entropy encoding a bit sequence representing an N-ary tree structure of three-dimensional points included in three-dimensional data, using a coding table selected from coding tables, where N is an integer greater than or equal to 2. The bit sequence includes N-bit information for each of nodes in the N-ary tree structure. The N-bit information includes N pieces of 1-bit information each indicating whether a three-dimensional point is present in a corresponding one of N child nodes of a corresponding one of the nodes. In each of the coding tables, a context is set to each of bits in the N-bit information. In the entropy encoding, each of the bits in the N-bit information is entropy encoded using the context set to the bit in the coding table selected.
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