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Proceedings Paper

Video coding using wavelet transform, windowed motion compensation, and conditional entropy coding
Author(s): Ulrik Hindo; Susanne Schjorring
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Paper Abstract

In this paper a video coding scheme is presented which is a hybrid coding scheme tailored to suit the wavelet transform. Using conventional block based motion compensation introduces blocking effects in the prediction error signal which are expensive to code when using a wavelet transform. Therefore a windowed motion compensation using overlapping blocks is used to smooth out transitions between blocks. A method for coding the quantized wavelet coefficients is presented. The positions of non-zero coefficients are coded using conditional entropy coding. The method exploits the correlation between coefficients inside a subband as well as between coefficients in different subbands. Simulation results are given for different prediction methods and different methods to code the quantized wavelet coefficients when coding an R.601 signal to 4 Mbit/s.

Paper Details

Date Published: 16 September 1994
PDF: 11 pages
Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); doi: 10.1117/12.185892
Show Author Affiliations
Ulrik Hindo, Tele Danmark Research (Denmark)
Susanne Schjorring, Tele Danmark Research (Denmark)

Published in SPIE Proceedings Vol. 2308:
Visual Communications and Image Processing '94
Aggelos K. Katsaggelos, Editor(s)

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