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Proceedings Paper

Intra prediction using face continuity in 360-degree video coding
Author(s): Philippe Hanhart; Yuwen He; Yan Ye
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Paper Abstract

This paper presents a new reference sample derivation method for intra prediction in 360-degree video coding. Unlike the conventional reference sample derivation method for 2D video coding, which uses the samples located directly above and on the left of the current block, the proposed method considers the spherical nature of 360-degree video when deriving reference samples located outside the current face to which the block belongs, and derives reference samples that are geometric neighbors on the sphere. The proposed reference sample derivation method was implemented in the Joint Exploration Model 3.0 (JEM-3.0) for the cubemap projection format. Simulation results for the all intra configuration show that, when compared with the conventional reference sample derivation method, the proposed method gives, on average, luma BD-rate reduction of 0.3% in terms of the weighted spherical PSNR (WS-PSNR) and spherical PSNR (SPSNR) metrics.

Paper Details

Date Published: 19 September 2017
PDF: 9 pages
Proc. SPIE 10396, Applications of Digital Image Processing XL, 103960W (19 September 2017); doi: 10.1117/12.2272712
Show Author Affiliations
Philippe Hanhart, InterDigital Communications, Inc. (United States)
Yuwen He, InterDigital Communications, Inc. (United States)
Yan Ye, InterDigital Communications, Inc. (United States)

Published in SPIE Proceedings Vol. 10396:
Applications of Digital Image Processing XL
Andrew G. Tescher, Editor(s)

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