EURASIP Journal on Image and Video Processing
Volume 2007 (2007), Article ID 83068, 8 pages
doi:10.1155/2007/83068
Research Article
Quality Variation Control for Three-Dimensional Wavelet-Based Video Coders
Department of Electrical Engineering, State University of New York at Buffalo, 332 Bonner Hall, Buffalo 14260, NY, USA
Received 15 August 2006; Revised 8 January 2007; Accepted 9 January 2007
Academic Editor: James E. Fowler
Copyright © 2007 Vidhya Seran and Lisimachos P. Kondi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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.