METHOD FOR POINT CLOUD PROCESSING AND DECODING, DEVICE FOR POINT CLOUD PROCESSING AND DECODING, AND STORAGE MEDIUM

WIPO Patent Application WO/2020/248562

A1

Embodiments of the prevent invention provide a method for point cloud processing and decoding, a device for point cloud processing and decoding, and a storage medium. The method comprises: encoding or decoding the Nth layer of a multi-way tree in a breadth-first manner; and when the number or distribution of all point cloud points in a first node of the Nth layer satisfies a preset condition, encoding or decoding a point cloud in the first node in a depth-first manner to obtain a code stream of the first node, wherein the code stream of the first node comprises an identifier and indexes, at layers of nodes in the multi-way tree, of the point cloud points in the first node, the identifier is used for indicating a child node of the first node to switch from the breadth-first manner to the depth-first manner for encoding and decoding, and N is an integer greater than or equal to 1. By means of such an implementation, the complexity of encoding or decoding and time overheads are reduced, the parallelized processing of point cloud compression encoding or decoding is improved, and the efficiency and performance of encoding or decoding are improved.

LI PU (CN)
ZHENG XIAOZHEN (CN)

PCT/CN2019/126090

December 17, 2020

December 17, 2019

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SZ DJI TECHNOLOGY CO LTD (CN)

H04N19/85

CN106846425A	2017-06-13
CN108833927A	2018-11-16
CN109887024A	2019-06-14
US20190087978A1	2019-03-21
EP2947630A1	2015-11-25

DONG TIAN ET AL.: "GEOMETRIC DISTORTION METRICS FOR POINT CLOUD COMPRESSION", IEEE ICIP2017, 31 December 2017 (2017-12-31), pages 3460 - 3464, XP033323218

LEADER PATENT & TRADEMARK FIRM (CN)

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