H.265/HEVC Video Coding Over Lossy Networks: Flexible or Fixed Mode in One CTU?

Taiyu Wang; Fan Li; Pamela C. Cosman

doi:10.1109/ACCESS.2018.2879867

IEEE Access (Jan 2018)

H.265/HEVC Video Coding Over Lossy Networks: Flexible or Fixed Mode in One CTU?

Taiyu Wang,
Fan Li,
Pamela C. Cosman

Affiliations

Taiyu Wang: School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, China
Fan Li: ORCiD; School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, China
Pamela C. Cosman: Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA, USA

DOI: https://doi.org/10.1109/ACCESS.2018.2879867
Journal volume & issue: Vol. 6
pp. 71279 – 71284

Abstract

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Flexible mode selection in one CTU, as one of the new technologies in H.265/HEVC video coding, can attain a high compression ratio. However, it may decrease the end-to-end PSNR for video communication over lossy networks. In this paper, we analyze the flexible prediction mode for the CTU in H.265/HEVC and find it causes more error propagation than fixed prediction mode in sub-pixel interpolation. Then, fixed mode-based error resilient encoding (FERE) is proposed to decrease the influence of error propagation. Experimental results show that the proposed FERE algorithm improves video quality by up to 5.56 dB compared with the baseline algorithms.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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