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Proceedings Paper

Motion compensation by block matching and vector postprocessing in subband coding of TV signals at 15 Mbit/s
Author(s): Fabrice Lallauret; Dominique Barba
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Paper Abstract

This work deals with a new coding method for transmitting TV signals at 15 Mbit/s. The coding scheme is based upon sub-band decomposition by Pseudo-QMF filtering and motion compensation. In that context we have studied the influence on the overall system of various strategies in the motion compensation block. More precisely, in the case of a motion compensation by block matching, the influence of overlapping between the blocks has been first considered. A new non-linear post processing scheme of the displacement vector is also presented which smoothed pretty well the vector field and reduced significantly the vector coding bit rate. Finally various methods of vector coding have been designed and compared.

Paper Details

Date Published: 1 November 1991
PDF: 11 pages
Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50261
Show Author Affiliations
Fabrice Lallauret, IRESTE/LATI La Chantrerie (France)
Dominique Barba, IRESTE/LATI La Chantrerie (France)

Published in SPIE Proceedings Vol. 1605:
Visual Communications and Image Processing '91: Visual Communication
Kou-Hu Tzou; Toshio Koga, Editor(s)

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