Title:
THREE-DIMENSIONAL DATA CODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA CODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/198636
Kind Code:
A1
Abstract:
Provided is a three-dimensional data coding method in which: information of a node of interest is coded, said node of interest being included in an N-ary tree structure (where N is an integer greater than 1) of a plurality of three-dimensional points included in three dimensional data, and in the coding, first information is coded which indicates a range in which, from among a plurality of adjacent nodes which are spatially adjacent to the node of interest, adjacent nodes that can be referenced (S2541) are present, and the adjacent nodes in the range are referenced and the node of interest is coded (S2542). In the coding, a coding table may be selected according to whether the three-dimensional points are present among the adjacent nodes in the range, and the selected coding table may be used to entropy-code the information of the node of interest.
Inventors:
WANG CHI
LASANG PONGSAK
HAN CHUNG DEAN
SUGIO TOSHIYASU (JP)
LASANG PONGSAK
HAN CHUNG DEAN
SUGIO TOSHIYASU (JP)
Application Number:
PCT/JP2019/015122
Publication Date:
October 17, 2019
Filing Date:
April 05, 2019
Export Citation:
Assignee:
PANASONIC IP CORP AMERICA (US)
International Classes:
G06T9/40; H04N13/189; H04N19/96
Domestic Patent References:
| WO2017168472A1 | 2017-10-05 | |||
| WO2017217191A1 | 2017-12-21 | |||
| WO2014020663A1 | 2014-02-06 |
Foreign References:
| JP2006108792A | 2006-04-20 | |||
| JP2017126890A | 2017-07-20 |
Other References:
See also references of EP 3779886A4
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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