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Dynamic Point Cloud Geometry Compression using Cuboid based Commonality Modeling Framework

Version 2 2024-06-06, 03:38
Version 1 2022-11-28, 23:52
conference contribution
posted on 2024-06-06, 03:38 authored by Ashek Ahmmed, Manoranjan Paul, Manzur MurshedManzur Murshed, David Taubman
Point cloud in its uncompressed format require very high data rate for storage and transmission. The video based point cloud compression (V-PCC) technique projects a dynamic point cloud into geometry and texture video sequences. The projected geometry and texture video frames are then encoded using modern video coding standard like HEVC. However, HEVC encoder is unable to exploit the global commonality that exists within a geometry frame and between successive geometry frames to a greater extent. This is because in HEVC, the current frame partitioning starts from a rigid 64 × 64 pixels level without considering the structure of the scene need be coded. In this paper, an improved commonality modeling framework is proposed, by leveraging on cuboid-based frame partitioning, to encode point cloud geometry frames. The associated frame-partitioning scheme is based on statistical properties of the current geometry frame and therefore yields a flexible block partitioning structure composed of cuboids. Additionally, the proposed commonality modeling approach is computationally efficient and has a compact representation. Experimental results show that if the V-PCC reference encoder is augmented by the proposed commonality modeling technique, a bit rate savings of 2.71% and 4.25% are achieved for full body and upper body of human point clouds’ geometry sequences respectively.

History

Volume

2021-September

Pagination

2159-2163

Location

Anchorage, AK, USA

Start date

2021-09-19

End date

2021-09-22

ISSN

1522-4880

ISBN-13

9781665441155

Language

eng

Publication classification

E1.1 Full written paper - refereed

Title of proceedings

ICIP 2021 : Image Processing : Proceedings of theInstitute of Electrical and Electronics Engineers 2021 conference

Event

Institute of Electrical and Electronics Engineers. Conference (2021 : Anchorage, AK, USA)

Publisher

Institute of Electrical and Electronics Engineers

Place of publication

Piscataway, N.J.

Series

IEEE International Conference on Image Processing ICIP