Quality variation control for three-dimensional wavelet-based video coders

Authors:
Vidhya Seran;Lisimachos P. Kondi
Affiliations:
Department of Electrical Engineering, State University of New York at Buffalo, Buffalo, NY;Department of Electrical Engineering, State University of New York at Buffalo, Buffalo, NY
Venue:
Journal on Image and Video Processing
Year:
2007

Citing 7
Cited 0

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Abstract

The fluctuation of quality in time is a problem that exists in motion-compensated-temporal-filtering (MCTF-) based video coding. The goal of this paper is to design a solution for overcoming the distortion fluctuation challenges faced by wavelet-based video coders. We propose a new technique for determining the number of bits to be allocated to each temporal subband in order to minimize the fluctuation in the quality of the reconstructed video. Also, the wavelet filter properties are explored to design suitable scaling coefficients with the objective of smoothening the temporal PSNR. The biorthogonal 5/3 wavelet filter is considered in this paper and experimental results are presented for 2D+t and t+2D MCTF wavelet coders.