METHOD AND APPARATUS OF ENCODING/DECODING A SLICE OF POINT CLOUD DATA

WIPO Patent Application WO/2023/147742

A1

The methods and apparatus of encoding/decoding a slice of point cloud data into/from a bitstream comprise context-based entropy encoding the slice of point cloud data based on entropy context tables. The method comprises: obtaining (310) a previous coding state represented by at least one coding parameter value, apart from a data representative of the content of an entry of one of the entropy context tables, used to previously encoding point cloud data; initializing (320) a current coding state from said previous coding state, said current coding state being represented by at least one current coding parameter; encoding (330) the slice of point cloud data into the bitstream based on the current coding state; updating (340) the current coding state during the encoding of the slice of point cloud data according to encoded point cloud data obtained by encoding the slice of point cloud data; and preserving (350) the current coding state either during and/or at the end of the encoding of the slice of point cloud data.

TAQUET JONATHAN (CN)
LASSERRE SEBASTIEN (CN)

PCT/CN2022/138730

August 10, 2023

December 13, 2022

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BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)

G11B20/10

US20210167795A1	2021-06-03
CN112385236A	2021-02-19
CN112272922A	2021-01-26
CN111465964A	2020-07-28
CN112438049A	2021-03-02
CN112565764A	2021-03-26
CN113473127A	2021-10-01
CN113812164A	2021-12-17

TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)

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