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Optical Engineering

Constrained in-loop filtering for error resiliency in high efficiency video coding
Author(s): Jinho Lee; Hui Yong Kim; Sung-Chang Lim; Jin Soo Choi
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Paper Abstract

In error-prone environments, packets could be lost during the transmission of compressed video bitstream, and corrupted errors by the lost packets could be propagated until it meets a refresh point. To defect the error propagation, constrained intra-prediction in high efficiency video coding (HEVC) performs intra-prediction using only neighboring intra-coded samples. However, the errors could be propagated to intra-coded blocks by an in-loop filtering process, since the in-loop filtering is performed regardless of the prediction modes of blocks, even though constrained intra-prediction is used. In this paper, a constrained in-loop filtering is proposed to protect intra-coded samples from error propagation by adaptively applying filters depending on the prediction modes of reconstructed blocks. Simulation results show that the proposed method alleviates the distortion of the decoded pictures and thereby improves both subjective and objective quality compared with the HEVC standard.

Paper Details

Date Published: 12 April 2013
PDF: 9 pages
Opt. Eng. 52(7) 071507 doi: 10.1117/1.OE.52.7.071507
Published in: Optical Engineering Volume 52, Issue 7
Show Author Affiliations
Jinho Lee, Electronics and Telecommunications Research Institute (Korea, Republic of)
Hui Yong Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Sung-Chang Lim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Jin Soo Choi, Electronics and Telecommunications Research Institute (Korea, Republic of)


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