Multiresolution, perceptual and vector quantization based video codec

Akbar Sheik Akbari; Pooneh Zadeh Bagheri; Tom Buggy; John Soraghan

doi:10.1007/s11042-011-0752-y

Multiresolution, perceptual and vector quantization based video codec

Akbar Sheik Akbari, Pooneh Zadeh Bagheri, Tom Buggy, John Soraghan

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Abstract

This paper presents a novel Multiresolution, Perceptual and Vector Quantization (MPVQ) based video coding scheme. In the intra-frame mode of operation, a wavelet transform is applied to the input frame and decorrelates it into its frequency subbands. The coefficients in each detail subband are pixel quantized using a uniform quantization factor divided by the perceptual weighting factor of that subband. The quantized coefficients are finally coded using a quadtree-coding algorithm. Perceptual weights are specifically calculated for the centre of each detail subband. In the inter-frame mode of operation, a Displaced Frame Difference (DFD) is first generated using an overlapped block motion estimation/compensation technique.

Original language	English
Pages (from-to)	569-583
Number of pages	15
Journal	Multimedia Tools and Applications
Volume	58
Issue number	3
DOIs	https://doi.org/10.1007/s11042-011-0752-y
Publication status	Published - Jun 2012

Keywords

video coding scheme
algorithm

Documents and Links

10.1007/s11042-011-0752-y

Publication in Scopus

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title = "Multiresolution, perceptual and vector quantization based video codec",

abstract = "This paper presents a novel Multiresolution, Perceptual and Vector Quantization (MPVQ) based video coding scheme. In the intra-frame mode of operation, a wavelet transform is applied to the input frame and decorrelates it into its frequency subbands. The coefficients in each detail subband are pixel quantized using a uniform quantization factor divided by the perceptual weighting factor of that subband. The quantized coefficients are finally coded using a quadtree-coding algorithm. Perceptual weights are specifically calculated for the centre of each detail subband. In the inter-frame mode of operation, a Displaced Frame Difference (DFD) is first generated using an overlapped block motion estimation/compensation technique.",

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AU - Bagheri, Pooneh Zadeh

AU - Buggy, Tom

AU - Soraghan, John

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