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Proceedings Paper

Digital video codec for medium bitrate transmission
Author(s): Touradj Ebrahimi; Frederic Dufaux; Iole Moccagatta; T. George Campbell; Murat Kunt
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Paper Abstract

A digital video codec is presented, using a fast Gabor-like wavelet transform to produce a multiresolution data set. Three difFerent strategies are introduced to code different levels of the resolution in the pyramidal data, according to their visual importance. A hierarchical vector quantization is performed to exploit the inter/intra subbands correlations. A multiresolution block matching is proposed to generate the motion field in the scene. These motion vectors are then used to reduce the temporal redundancies. Simulations show good results in quality for medium bitrate transmission.

Paper Details

Date Published: 1 November 1991
PDF: 14 pages
Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50239
Show Author Affiliations
Touradj Ebrahimi, Swiss Federal Institute of Technology (Switzerland)
Frederic Dufaux, Swiss Federal Institute of Technology (Switzerland)
Iole Moccagatta, Swiss Federal Institute of Technology (Switzerland)
T. George Campbell, Swiss Federal Institute of Technology (Switzerland)
Murat Kunt, Swiss Federal Institute of Technology (Switzerland)


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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