[2205.11825] A Rate Control Algorithm for Video-based Point Cloud Compression
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Computer Science > Multimedia

arXiv:2205.11825 (cs)
[Submitted on 24 May 2022]

Title:A Rate Control Algorithm for Video-based Point Cloud Compression

Authors:Fangyu Shen, Wei Gao
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Abstract:Video-based point cloud compression (V-PCC) has been an emerging compression technology that projects the 3D point cloud into a 2D plane and uses high efficiency video coding (HEVC) to encode the projected 2D videos (geometry video and color video). In this work, we propose a rate control algorithm for the all-intra (AI) configuration of V-PCC. Specifically, based on the quality-dependency existing in the projected videos, we develop an optimization formulation to allocate target bits between the geometry video and the color video. Furthermore, we design a two-pass method for HEVC to adapt to the new characteristics of projected videos, which significantly improves the accuracy of rate control. Experimental results demonstrate that our algorithm outperforms V-PCC without rate control in R-D performance with just 0.43% bitrate error.
Comments: 5 pages, 3 figures, 4 tables
Subjects: Multimedia (cs.MM)
Cite as: arXiv:2205.11825 [cs.MM]
  (or arXiv:2205.11825v1 [cs.MM] for this version)
  https://doi.org/10.48550/arXiv.2205.11825
Journal reference: 2021 International Conference on Visual Communications and Image Processing (VCIP)
Related DOI: https://doi.org/10.1109/VCIP53242.2021.9675449.

Submission history

From: Fangyu Shen [view email]
[v1] Tue, 24 May 2022 06:42:49 UTC (247 KB)
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