Regular omnidirectional video encoding technics use map projection to flatten a scene from a spherical shape into one or several 2D shapes. Common projection methods including equirectangular and cubic projection have varying levels of interpolation that create a large number of non-information-carrying pixels that lead to wasted bitrate. In this paper, we propose a tile based omnidirectional video segmentation scheme which can save up to 28% of pixel area and 20% of BD-rate averagely compared to the traditional equirectangular projection based approach.
Cite
@article{arxiv.2103.05858,
title = {Novel tile segmentation scheme for omnidirectional video},
author = {Jisheng Li and Ziyu Wen and Sihan Li and Yikai Zhao and Bichuan Guo and Jiangtao Wen},
journal= {arXiv preprint arXiv:2103.05858},
year = {2021}
}
Comments
Published in 2016 IEEE International Conference on Image Processing (ICIP)