Error concealment of lost motion vectors with overlapped motion compensation

Most video sequence coding systems use block motion compensation to remove temporal redundancy for video compression due to the regularity and simplicity. A new error concealment algorithm for recovering the lost or erroneously received motion vectors is presented. It combines the overlapped motion...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 1997-06, Vol.7 (3), p.560-563
Main Authors: CHEN, M.-J, CHEN, L.-G, WENG, R.-M
Format: Article
Language:English
Subjects:
Applied sciences
Coding, codes
Exact sciences and technology
Extrapolation
HDTV
Image processing
Information, signal and communications theory
Motion compensation
Real time systems
Redundancy
Signal and communications theory
Signal processing
Telecommunications and information theory
Transform coding
Video compression
Video sequences
Videoconference
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Summary:Most video sequence coding systems use block motion compensation to remove temporal redundancy for video compression due to the regularity and simplicity. A new error concealment algorithm for recovering the lost or erroneously received motion vectors is presented. It combines the overlapped motion compensation and the side match criterion to make the effect of lost motion vectors subjectively imperceptible. The side match criterion takes advantage of the spatial contiguity and interpixel correlation of image to select the best-fit replacement among the motion vectors of spatially contiguous candidate blocks. Particularly, to mask the blocking artifacts, we incorporate an overlapping technique to create a subjectively closer approximation to the true error-free image.
ISSN:1051-8215
1558-2205
DOI:10.1109/76.585936