Open Access

Classification-Based Spatial Error Concealment for Visual Communications

EURASIP Journal on Advances in Signal Processing20062006:013438

https://doi.org/10.1155/ASP/2006/13438

Received: 1 March 2005

Accepted: 22 August 2005

Published: 19 March 2006

Abstract

In an error-prone transmission environment, error concealment is an effective technique to reconstruct the damaged visual content. Due to large variations of image characteristics, different concealment approaches are necessary to accommodate the different nature of the lost image content. In this paper, we address this issue and propose using classification to integrate the state-of-the-art error concealment techniques. The proposed approach takes advantage of multiple concealment algorithms and adaptively selects the suitable algorithm for each damaged image area. With growing awareness that the design of sender and receiver systems should be jointly considered for efficient and reliable multimedia communications, we proposed a set of classification-based block concealment schemes, including receiver-side classification, sender-side attachment, and sender-side embedding. Our experimental results provide extensive performance comparisons and demonstrate that the proposed classification-based error concealment approaches outperform the conventional approaches.

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Authors’ Affiliations

(1)
Department of Electrical and Computer Engineering, University of Maryland

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Copyright

© Chen et al. 2006