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Recovery of lost motion vectors for error concealment in video coding

Ghanbari, S, Cieplinski, L and Bober, MZ (2003) Recovery of lost motion vectors for error concealment in video coding

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Abstract

Transmission of compressed video over error prone channels such as mobile networks is a challenging issue. Maintaining an acceptable quality of service in such an environment demands additional post-processing tools to limit the impact of uncorrected transmission errors. Significant visual degradation of a video stream occurs when the motion vector component is corrupted. In this paper, an effective and computationally efficient method for the recovery of lost motion vectors (MVs) is proposed. The novel idea selects a neighbouring block MV that has the minimum distance from an estimated MV. Simulation results are presented, including comparison with existing methods. Our method follows the performance of the best existing method by approximately 0.1-0.5 dB. However, it has a significant advantage in that it is 50% computationally simpler. This makes our method ideal for use in mobile handsets and other applications with limited processing power.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Authors :
NameEmailORCID
Ghanbari, SUNSPECIFIEDUNSPECIFIED
Cieplinski, LUNSPECIFIEDUNSPECIFIED
Bober, MZm.bober@surrey.ac.ukUNSPECIFIED
Date : 9 December 2003
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:12
Last Modified : 17 May 2017 15:02
URI: http://epubs.surrey.ac.uk/id/eprint/834398

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