An atlas generation method with patch trimming for efficient immersive video coding

Sung-Gyun Lim; Jae-Gon Kim

doi:10.1117/12.2626119

30 April 2022 An atlas generation method with patch trimming for efficient immersive video coding

Sung-Gyun Lim, Jae-Gon Kim

Proceedings Volume 12177, International Workshop on Advanced Imaging Technology (IWAIT) 2022; 121772V (2022) https://doi.org/10.1117/12.2626119
Event: International Workshop on Advanced Imaging Technology 2022 (IWAIT 2022), 2022, Hong Kong, China

Abstract

MPEG is developing an immersive video coding standard called MPEG immersive video (MIV) to provide users with an immersive visual experience with six degrees of freedom (6DoF) of view position and orientation within a limited viewing space. In the MIV reference software called test model for immersive video (TMIV), the atlases are generated for reducing the pixel rate of input source views to be coded by removing inter-view redundancy. There are a lot of discontinuities in the generated atlases in which the patches containing both valid and invalid regions are packed, which results in the decrease of coding efficiency. To address this problem, this paper presents an atlas generation method that trims the packed patches of the atlas through hole filling and tiny block removal. The proposed method shows a BD-rate bit saving of 1.4% on average compared to the original TMIV.

Citation Download Citation

Sung-Gyun Lim and Jae-Gon Kim "An atlas generation method with patch trimming for efficient immersive video coding", Proc. SPIE 12177, International Workshop on Advanced Imaging Technology (IWAIT) 2022, 121772V (30 April 2022); https://doi.org/10.1117/12.2626119

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