|
Performing Deblocking in Video Coding based on Spatial-domain Motion compensated Temporal Filtering Host Publication: Advanced Concepts for Intelligent Vision Systems Authors: A. Munteanu, J. Barbarien, J. Cornelis and P. Schelkens Publisher: Springer Verlag Publication Date: Sep. 2006 Number of Pages: 11 ISBN: 978-3-540-44630-9
Abstract: Employing block-based motion models in scalable video coding based on spatial-domain motion-compensated temporal filtering (SDMCTF) introduces artificial block-boundary discontinuities that adversely affect the video compression performance, particularly at low bit-rates. This paper focuses on the problem of deblocking in the context of SDMCTF-based video coding. One possible solution to this problem is the use of overlapped-block motion com-pensation (OBMC). An alternative solution is applying an adaptive deblocking filter, similar to the one used in H.264. With this respect, a novel adaptive de-blocking filter, tailored to SDMCTF video coding is proposed. In terms of vis-ual-quality, both approaches yield similar performance. However, adaptive de-blocking is less complex than OBMC, as it requires up to 34% less processing time. Experimental results show that the two techniques significantly improve the subjective and objective quality of the decoded sequences, confirming the expected benefits brought by deblocking in SDMCTF-based video coding.
|
