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An effective GM/LM-based video error concealment

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Abstract

Error concealment (EC) techniques are often utilized at decoder side to improve reconstructed videos, in case of some information is lost during transmission on a wireless or band-width limited communication channel. In this paper, a global motion/local motion (GM/LM)-based error concealment method is proposed. First, the correct-macro-blocks (CMBs) are classified into global motion compensated MBs and local motion compensated MBs adaptively. Then, an erroneous MB (EMB) is classified into one of the three types: global motion MB (GMB), local motion MB (LMB), and global/local overlapping MB (GLMB) according to the MB type information in its neighbors. For the EMB with its type, GMB is recovered using the global motion vector (GMV). The EMB with its type LMB is recovered using the average motion vector information. And for the MB with its type GLMB, a recursive boundary matching strategy is utilized to search an optimal recovering motion vector. Experimental results show the effectiveness of the proposed GM/LM-based error concealment method.

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Authors and Affiliations

  1. School of Electronics and Information Engineering, Xi’an Jiaotong University, 710049, Xi’an, China

    Xueming Qian & Guizhong Liu

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  1. Xueming Qian
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  2. Guizhong Liu
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Correspondence to Xueming Qian.

Additional information

This work is partially supported by National Natural Science Foundation of China (NSFC, Project No. 60903121) and Nation High Tech. Project No. 2009AA01Z409.

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Qian, X., Liu, G. An effective GM/LM-based video error concealment. SIViP 6, 9–17 (2012). https://doi.org/10.1007/s11760-010-0166-8

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  • DOI: https://doi.org/10.1007/s11760-010-0166-8

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