Title:
COMPLEXITY REDUCTION OF VIDEO-BASED POINT CLOUD COMPRESSION ENCODING USING GRID-BASED SEGMENTATION
Document Type and Number:
WIPO Patent Application WO/2022/039579
Kind Code:
A1
Abstract:
An encoding device and a method for point cloud encoding are disclosed. The method includes segmenting an area including points representing a three-dimensional (3D) point cloud into multiple voxels. The method also includes generating a patch information for each of the multiple voxels that include at least one of the points of the 3D point cloud. The method further includes assigning the patch information of the multiple voxels to the points included in each respective voxel, to generate patches that represent the 3D point cloud based on the patch information of the multiple voxels. Additionally, the method includes generating frames that include pixels that represent the patches. The method also includes encoding the frames to generate a bitstream and transmitting the bitstream.
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Inventors:
FARAMARZI ESMAEIL (US)
BUDAGAVI MADHUKAR (US)
JOSHI RAJAN LAXMAN (US)
BUDAGAVI MADHUKAR (US)
JOSHI RAJAN LAXMAN (US)
Application Number:
PCT/KR2021/011218
Publication Date:
February 24, 2022
Filing Date:
August 23, 2021
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04N19/597; G06T7/11; G06T9/00; H04N19/184; H04N19/20
Foreign References:
| US20190197739A1 | 2019-06-27 | |||
| US20190087979A1 | 2019-03-21 | |||
| US20200175726A1 | 2020-06-04 |
Other References:
VO ANH-VU, TRUONG-HONG LINH, LAEFER DEBRA F., BERTOLOTTO MICHELA: "Octree-based region growing for point cloud segmentation", ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, AMSTERDAM [U.A.] : ELSEVIER, AMSTERDAM, NL, vol. 104, 1 June 2015 (2015-06-01), AMSTERDAM, NL , pages 88 - 100, XP055901380, ISSN: 0924-2716, DOI: 10.1016/j.isprsjprs.2015.01.011
ROBERT A COHEN ET AL: "Compression of 3-D point clouds using hierarchical patch fitting", 2017 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 20 September 2017 (2017-09-20), pages 4033 - 4037, XP033323333, DOI: 10.1109/ICIP.2017.8297040
ROBERT A COHEN ET AL: "Compression of 3-D point clouds using hierarchical patch fitting", 2017 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 20 September 2017 (2017-09-20), pages 4033 - 4037, XP033323333, DOI: 10.1109/ICIP.2017.8297040
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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