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Content-Based Adaptive Intra Blocks Update for Robust Wireless Video Communications

Abstract

Unreliable and error-prone nature of wireless channel is a great challenge for wireless video communications. According to high frequency of error occurrence in wireless channel, limited resources bandwidth and transmission power in mobile terminal, this paper represents a content-based adaptive intra block update method. It takes different intra block update rate on different image features. The vulnerability of each coded block to channel errors is measured through "error-sensitivity metric", and intra coding mode is carried out for appropriate macro block. Experiment results show that the method can effectively improve video transmission robustness on wireless-channel with slightly computational cost.

Authors

Huang X; Shen W; Zhu Z; Guo X; Wei X

Pagination

pp. 2915-2918

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Publication Date

September 1, 2007

DOI

10.1109/wicom.2007.724

Name of conference

2007 International Conference on Wireless Communications, Networking and Mobile Computing

Conference proceedings

2008 4th International Conference on Wireless Communications, Networking and Mobile Computing

ISSN

2161-9646
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