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Optical Engineering

Motion-compensated generic coding of video based on a multiresolution data structure
Author(s): Frederic Dufaux; Iole Moccagatta; Bruno Rouchouze; Touradj Ebrahimi; Murat Kunt
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Paper Abstract

We present a generic video codec, which is able to compress image sequences efticiently regardless of their input formats. In addition, this codec supports a wide range of bit rates, without significant changes in its main architecture. A multiresolution representation of the data is generated by a Gabor-like wavelet transform. The motion estimation is performed by a locally adaptive multigrid block-matching technique. This codec can handle both interlaced and progressive input sequences, the temporal redundancies being exploited by interframe/interfield coding. A perceptual quantization of the resulting coefficients is then performed, followed by adaptive entropy coding. Simulations using different test sequences demonstrate a reconstructed signal of good quality for a wide range of bit rates. Thereby demonstrating that this codec can perform generic coding with reduced complexity and high efficiency.

Paper Details

Date Published: 1 July 1993
PDF: 12 pages
Opt. Eng. 32(7) doi: 10.1117/12.139807
Published in: Optical Engineering Volume 32, Issue 7
Show Author Affiliations
Frederic Dufaux, Swiss Federal Institute of Technology (Switzerland)
Iole Moccagatta, Swiss Federal Institute of Technology (Switzerland)
Bruno Rouchouze, Swiss Federal Institute of Technology (Switzerland)
Touradj Ebrahimi, Swiss Federal Institute of Technology (Switzerland)
Murat Kunt, Swiss Federal Institute of Technology (Switzerland)


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