Novel pseudo-cylindrical projection based tile segmentation scheme for omnidirectional video

Ruiqi Wang; Long Ye; Wei Zhong; Li Fang; Qin Zhang

doi:10.1117/12.2503006

9 August 2018 Novel pseudo-cylindrical projection based tile segmentation scheme for omnidirectional video

Ruiqi Wang, Long Ye, Wei Zhong, Li Fang, Qin Zhang

Proceedings Volume 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018); 1080646 (2018) https://doi.org/10.1117/12.2503006
Event: Tenth International Conference on Digital Image Processing (ICDIP 2018), 2018, Shanghai, China

Abstract

Omnidirectional videos are widely used in Virtual Reality applications. Omnidirectional videos are sphere in origin and need to be projected to a 2D-plane before coding and transmission. Common projection methods suffer from the overstretching in the polar areas which leads to the enormous decreasing of the omnidirectional video quality. In this paper, we proposed a novel representation based on pseudo-cylindrical projection. The representation is then reshaped and rearranged in the considering of several constraints including saving the pixel area and increasing viewing quality. The generation of our representation is formed as a multi dimension optimization problem. Our results across the test video sequences show significant coding gains over standard representations.

Citation Download Citation

Ruiqi Wang, Long Ye, Wei Zhong, Li Fang, and Qin Zhang "Novel pseudo-cylindrical projection based tile segmentation scheme for omnidirectional video", Proc. SPIE 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018), 1080646 (9 August 2018); https://doi.org/10.1117/12.2503006

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