19 September 2017 Discontinuity minimization for omnidirectional video projections
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Abstract
Advances in display technologies both for head mounted devices and television panels demand resolution increase beyond 4K for source signal in virtual reality video streaming applications. This poses a problem of content delivery trough a bandwidth limited distribution networks. Considering a fact that source signal covers entire surrounding space investigation reviled that compression efficiency may fluctuate 40% in average depending on origin selection at the conversion stage from 3D space to 2D projection. Based on these knowledge the origin selection algorithm for video compression applications has been proposed. Using discontinuity entropy minimization function projection origin rotation may be defined to provide optimal compression results. Outcome of this research may be applied across various video compression solutions for omnidirectional content.
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Elena Alshina, Elena Alshina, Vladyslav Zakharchenko, Vladyslav Zakharchenko, } "Discontinuity minimization for omnidirectional video projections", Proc. SPIE 10396, Applications of Digital Image Processing XL, 1039612 (19 September 2017); doi: 10.1117/12.2275003; https://doi.org/10.1117/12.2275003
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