Title:
THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/156141
Kind Code:
A1
Abstract:
This three-dimensional data encoding method encodes information of a target node contained in an N (where N is an integer at least equal to 2) tree structure of a plurality of three-dimensional points included in three-dimensional data, wherein, in the encoding, among a plurality of adjacent nodes spatially adjacent to the target node, reference to information of a first node having a parent node that is the same as that of the target node is allowed, and reference to information of a second node having a different parent node to that of the target node is prohibited. For example, in the three-dimensional data encoding method, a determination may additionally be performed to ascertain whether to prohibit reference to the information of the second node, and a bit stream including prohibition switching information, which is the result of the determination and indicates whether reference to the information of the second node is to be prohibited, may be generated.
Inventors:
SUGIO TOSHIYASU (JP)
KOYAMA TATSUYA
KOYAMA TATSUYA
Application Number:
PCT/JP2019/004346
Publication Date:
August 15, 2019
Filing Date:
February 07, 2019
Export Citation:
Assignee:
PANASONIC IP CORP AMERICA (US)
International Classes:
G06T9/40
Domestic Patent References:
| WO2014020663A1 | 2014-02-06 |
Foreign References:
| JP2017126890A | 2017-07-20 | |||
| JP2005259139A | 2005-09-22 | |||
| JP2013524708A | 2013-06-17 | |||
| JP2016534679A | 2016-11-04 |
Other References:
See also references of EP 3751520A4
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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