A Hybrid Error Control and Artifact Detection Mechanism for Robust Decoding of H.264/AVC Video Sequences

This letter presents a hybrid error control and artifact detection (HECAD) mechanism which can be used to enhance the error resilient capabilities of the standard H.264/advanced video coding (AVC) codec. The proposed solution first exploits the residual source redundancy to recover the most likeliho...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 2010-05, Vol.20 (5), p.756-762
Main Authors: Farrugia, Reuben A, Debono, Carl J
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
Automatic voltage control
Circuit properties
Code standards
Codecs
Coding
Coding, codes
Decoding
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Encoding
Error correction
Error correction codes
Error correction coding
Error detection
error resilient video transmission
Exact sciences and technology
H.264/advanced video coding (AVC)
Image processing
Information, signal and communications theory
learning systems
Noise levels
Redundancy
Robust control
Signal and communications theory
Signal convertors
Signal processing
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Video coding
Video sequences
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Summary:This letter presents a hybrid error control and artifact detection (HECAD) mechanism which can be used to enhance the error resilient capabilities of the standard H.264/advanced video coding (AVC) codec. The proposed solution first exploits the residual source redundancy to recover the most likelihood H.264/AVC bitstream. If error recovery is unsuccessful, the residual corrupted slices are then passed through a pixel-level artifact detection mechanism to detect the visually impaired macroblocks to be concealed. The proposed HECAD algorithm achieves overall peak signal-to-noise ratio gains between 0.4 dB and 4.5 dB relative to the standard with no additional bandwidth requirement. The cost of this solution translates in a marginal increase in the complexity of the decoder. In addition, this method can be applied in conjunction with other error resilient strategies and scales well with different encoding configurations.
ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2010.2045808