Parallel vector multidimensional slant,Haar, and Walsh-Hadamard transforms |
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Authors: | Mohamed El-Sharkawy Maurice Aburdene Wenlong Tsang |
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Affiliation: | (1) Electrical Engineering Department, Purdue University, 46202 Indianapolis, Indiana;(2) Electrical Engineering Department, Bucknell University, 17837 Lewisburg, PA |
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Abstract: | A new factorization for the slant matrix is developed. The structure of the proposed slant algorithm based on the new factorization is suitable for vector and parallel processing of one- and two-dimensional slant transforms. A unified approach to compute the Walsh-Hadamard, Haar, and slant transforms is presented. Multitasking with four processors is implemented to improve the speed performance of two-dimensional transforms. Simulation results on CRAY X-MP/48 using single-processor and multiprocessors are also included.This work is supported in part by the National Science Foundation, Pittsburgh Supercomputing Center and by the PEW Science Education Program. |
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Keywords: | Parallel vector processing slant transform Haar transform and Walsh-Hadamard transform |
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