White Papers

Data Recovery Using Improved RVLC in MPEG-4

Tags: data

Overview This paper presents a low-complexity RVLC decoding scheme (including the effect of DC/AC prediction) that recovers more blocks and sometimes more MBs from error propagation region of corrupted video packets, as compared to the MPEG-4 scheme. The remaining blocks and MBs are concealed, by using maximally smooth error concealment scheme. It is shown that the proposed scheme achieves better data recovery, both in terms of PSNR and perceptual quality. In addition, the paper presents more conditions for better error detection than those suggested in MPEG-4, and also discuss properties of error propagation in corrupted video packets. Since the schemes are purely decoder based, the compliance with the standard is fully maintained.

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Publisher: Clarkson University
File Format: PDF
Date Published: Oct 22, 2008
Format: White Papers
Topics: Data Recovery - Security, Knowledge and Data Management

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