Title:
三次元データ符号化方法、三次元データ復号方法、三次元データ符号化装置、及び三次元データ復号装置
Document Type and Number:
Japanese Patent JP7322020
Kind Code:
B2
Abstract:
A three-dimensional data encoding method includes: (i) when a first flag indicates a first value (YES in S4481), creating a first occupancy pattern indicating occupancy states of second neighboring nodes including a first neighboring node having a parent node different from a parent node of a current node included in an N-ary tree structure of three-dimensional points included in three-dimensional data (S4482), and determining whether first encoding is usable based on the first occupancy pattern, the first encoding being for encoding pieces of position information of three-dimensional points included in the current node without dividing the current node into child nodes; (ii) when the first flag indicates a second value different from the first value (NO in S4481), creating a second occupancy pattern indicating occupancy states of third neighboring nodes excluding the first neighboring node having the parent node different from the parent node of the current node (S4484), and determining whether the first encoding is usable based on the second occupancy pattern (S4485); and (iii) generating a bitstream including the first flag (S4486).
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Inventors:
Toshiyasu Sugio
Application Number:
JP2020527576A
Publication Date:
August 07, 2023
Filing Date:
June 26, 2019
Export Citation:
Assignee:
Panasonic Intellectual Property Corporation of America
International Classes:
G06T9/40
Domestic Patent References:
| JP2013526143A | ||||
| JP2013524709A |
Foreign References:
| WO2011128269A1 | ||||
| US20170372513 |
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka