Affiliations: [a] School of Information Science and Engineer, Huaqiao University, Xiamen 361021, Fujian, China | [b] Xiamen Key Laboratory of Mobile Multimedia Communications, Xiamen 361021, Fujian, China
Correspondence:
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Corresponding author: Jing Chen, School of Information Science and Engineer, Huaqiao University, Xiamen 361021, Fujian, China. Tel.: +86 15710631171; Fax: +86 0592 6162380; E-mail:[email protected]
Abstract: To improve the robustness of video transmission, a
layered HEVC multiple description video coding (MDVC) based on 3D dual-tree
discrete wavelet transform (3D DDWT) is proposed in this paper. The base
layer of the coding structure consists of bitstreams coded by an HEVC with
low bitrate, and then duplicated to each description. The error frames of
the reconstructed base layer and the input video sequence are coded by a 3D
discrete wavelet transform encoder to produce four coefficient trees with
redundancy. After noise-shaping, these four trees are partitioned into two
groups, forming the enhancement layer of diverse descriptions. As the
directional selection property of 3D DDWT, the error matching problem can be
solved without performing the motion estimation and motion compensation in
each description, the complexity of the MDVC algorithm can also be reduced.
Experimental results have shown that the proposed algorithm improves the
error resiliency of HEVC while maintaining the coding efficiency.
Keywords: HEVC, multiple description video coding, dual-tree discrete wavelet transform
