20 November 1986 Sub-Band Coding Of Digital Images Using Two-Dimensional Quadrature Mirror Filtering
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Proceedings Volume 0707, Visual Communications and Image Processing; (1986) https://doi.org/10.1117/12.937248
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States
Abstract
Computer simulation results of sub-band coding of digital images using Quadrature Mirror Filtering (QMF) techniqueb are reported. Conditions specifying two-dimensional QMF design constraints are derived. The spectrum of the input signal is then decomposed non-uniformly into sub-band images. In the coding process, the lowest band is DPCM coded using a two-dimensional prediction scheme. The remaining bands are PCM coded by a quantizer which minimizes the perceived distortion of the reconstructed signal. The results are then presented in terms of subjective quality of the reconstructed pictures, SNR, and the resulting bit rate.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
H. Gharavi, Ali Tabatabai, "Sub-Band Coding Of Digital Images Using Two-Dimensional Quadrature Mirror Filtering", Proc. SPIE 0707, Visual Communications and Image Processing, (20 November 1986); doi: 10.1117/12.937248; https://doi.org/10.1117/12.937248
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