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Foveation Based Error Resilience Optimization for H.264 Intra Coded Frame in Wireless Communication
Yu CHEN XuDong ZHANG DeSheng WANG
IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Multimedia Systems for Communications" Multimedia Systems for Communications
foveation analysis, error resilience, H.264,
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Based on the observation that foveation analysis can be used to find most critical content in terms of human visual perception in video and image, one effective error resilience method is proposed for robust transmission of H.264 intra-coded frame in wireless channel. It firstly exploits the results of foveation analysis to find foveated area in picture, and then considers the results of pre-error concealment effect analysis to search for the center of foveation macro-blocks (MB) in foveated area, finally new error resilient alignment order of MB and new coding order of MB are proposed that are used in video encoder. Extensive experimental results on different portrait video sequences over random bit error wireless channel demonstrate that this proposed method can achieve better subjective and objective effect than original JM 8.2 H.264 video codec with little effect on coding rate and image quality.