Title:
METHOD FOR ENCODING AND DECODING A 3D POINT CLOUD, ENCODER, DECODER
Document Type and Number:
WIPO Patent Application WO/2023/240471
Kind Code:
A1
Abstract:
Method for decoding, from a bitstream, the geometry of a 3D point cloud by decoding information constituting a geometrical representation of the geometry, preferably implemented in a decoder, including: Receiving and decoding a bitstream, wherein the bitstream contains octree information including information about octree structure of the volume of the point cloud and vertex information including information about vertex presence and position of a vertex on edges of the cuboids; Determining triangles by connecting the vertices of one cuboid of the octree structure; Voxelization of the triangles to determine points of the point cloud, wherein at least one triangle is extended at along at least one side for voxelization based on a sampling distance dsampl of the point cloud.
Inventors:
GAO SHUO (CN)
Application Number:
PCT/CN2022/098770
Publication Date:
December 21, 2023
Filing Date:
June 14, 2022
Export Citation:
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
International Classes:
G06T9/00; G06T15/06; H04N19/597; H04N19/91
Foreign References:
| US20090167763A1 | 2009-07-02 | |||
| US10192353B1 | 2019-01-29 |
Other References:
LASSERRE (XIAOMI) S: "[GPCC][TriSoup] Part 5 Improved rendering from triangles", no. m59292, 12 April 2022 (2022-04-12), XP030301450, Retrieved from the Internet [retrieved on 20220412]
"EE 13.50 on triangle soup", no. n21576, 26 May 2022 (2022-05-26), XP030302492, Retrieved from the Internet [retrieved on 20220526]
DRICOT ANTOINE ET AL: "Adaptive Multi-level Triangle Soup for Geometry-based Point Cloud Coding", 2019 IEEE 21ST INTERNATIONAL WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING (MMSP), IEEE, 27 September 2019 (2019-09-27), pages 1 - 6, XP033660072, DOI: 10.1109/MMSP.2019.8901791
OHJI NAKAGAMI (SONY): "PCC on Trisoup decode in G-PCC", no. m44706, 9 October 2018 (2018-10-09), XP030193172, Retrieved from the Internet [retrieved on 20181009]
KHALED MAMMON ET AL: "G-PCC codec description", no. N18189, 22 February 2019 (2019-02-22), pages 1 - 39, XP030212734, Retrieved from the Internet [retrieved on 20190222]
SHUO GAO (XIAOMI) ET AL: "[GPCC][EE13.50 related] Improvement of voxelization of trisoup model", no. m60017, 13 July 2022 (2022-07-13), XP030303389, Retrieved from the Internet [retrieved on 20220713]
A. DRICOT ET AL.: "Adaptive multi-level triangle soup for geometry - based point cloud coding", 2019, IEEE
NAKAGAMI O.: "report on triangle soup decoding", ISO/IEC JTC1/SC29-WG11, 2020
"EE 13.50 on triangle soup", no. n21576, 26 May 2022 (2022-05-26), XP030302492, Retrieved from the Internet
DRICOT ANTOINE ET AL: "Adaptive Multi-level Triangle Soup for Geometry-based Point Cloud Coding", 2019 IEEE 21ST INTERNATIONAL WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING (MMSP), IEEE, 27 September 2019 (2019-09-27), pages 1 - 6, XP033660072, DOI: 10.1109/MMSP.2019.8901791
OHJI NAKAGAMI (SONY): "PCC on Trisoup decode in G-PCC", no. m44706, 9 October 2018 (2018-10-09), XP030193172, Retrieved from the Internet
KHALED MAMMON ET AL: "G-PCC codec description", no. N18189, 22 February 2019 (2019-02-22), pages 1 - 39, XP030212734, Retrieved from the Internet
SHUO GAO (XIAOMI) ET AL: "[GPCC][EE13.50 related] Improvement of voxelization of trisoup model", no. m60017, 13 July 2022 (2022-07-13), XP030303389, Retrieved from the Internet
A. DRICOT ET AL.: "Adaptive multi-level triangle soup for geometry - based point cloud coding", 2019, IEEE
NAKAGAMI O.: "report on triangle soup decoding", ISO/IEC JTC1/SC29-WG11, 2020
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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