Paper
1 May 1986 Temporal Propagation Of Channel Errors In Multimode Adaptive Coders
C. Labit, J. P. de la Tribonniere
Author Affiliations +
Proceedings Volume 0594, Image Coding; (1986) https://doi.org/10.1117/12.952219
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France
Abstract
The aim of this study is temporal propagation of channel errors in coding schemes for Television Sequences. Many studies have been performed to decrease spatial propagation in adaptive intraframe DPCM coder. All these methods could be extended to temporal domain. Briefly we distinguish, algorithmic robustness using efficient adaptive predictors, systematic protection with redundant information transmission, and the use of error correcting codes. This paper concerns more specifically the inherent robustness of coding algorithms. A multimode intraframe/interframe coding algorithm using motion compensation is used and the locii where channel errors are introduced for simulation experiments are precisely defined : fixed areas, motion compensated areas, uncompensated areas. First experiments show that high degree of adaptivity in the sense of fast switching between prediction modes (intra/interframe) must decrease the error propagation in both temporal and spatial domains. Moreover, correcting improvements such as temporal refleshment of specific parameters, especially motion parameters, have been tested.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. Labit and J. P. de la Tribonniere "Temporal Propagation Of Channel Errors In Multimode Adaptive Coders", Proc. SPIE 0594, Image Coding, (1 May 1986); https://doi.org/10.1117/12.952219
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KEYWORDS
Error analysis

Image compression

Binary data

Fast packet switching

Motion estimation

Computer simulations

Photography

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