Quality Variation Control for Three-Dimensional Wavelet-Based Video Coders
نویسندگان
چکیده
The fluctuation of quality in time is a problem that exists inmotion-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.
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عنوان ژورنال:
- EURASIP J. Image and Video Processing
دوره 2007 شماره
صفحات -
تاریخ انتشار 2007