Concept

Vector quantization

Related publications (104)

Adaptive scalar quantization without side information

In this paper, we introduce a novel technique for adaptive scalar quantization. Adaptivity is useful in applica- tions, including image compression, where the statistics of the source are either not known a priori or will change over time. Our algorithm us ...

1997

Vector quantization of image subbands: a survey

Martin Vetterli

Subband and wavelet decompositions are powerful tools in image coding because of their decorrelating effects on image pixels, the concentration of energy in a few coefficients, their multirate/multiresolution framework, and their frequency splitting, which ...

1996

Multigrid block matching motion estimation for generic video coding

Frédéric Dufaux

Motion estimation and compensation techniques have shown their efficiency to reduce temporal redundancies in video coding applications. Motion estimation analyzes the movement of objects in the scene. The resulting motion information allows to improve inte ...

EPFL1994

New techniques for subband/wavelet transform coefficient coding applied to still image compression

Touradj Ebrahimi

New techniques for redundancy removal of quantized coefficients of a wavelet transform are discussed. Several strategies are developed to improve the redundancy reduction stage in subband/wavelet based image compression. The influence of the scanning path ...

1993

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