Novel tile segmentation scheme for omnidirectional video

03/10/2021

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by   Jisheng Li, et al.

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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 area and 20 projection based approach.