25 September 1998 Systolic array for fast computation of discrete cosine transform
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Proceedings Volume 3545, International Symposium on Multispectral Image Processing (ISMIP'98); (1998) https://doi.org/10.1117/12.323606
Event: International Symposium on Multispectral Image Processing, 1998, Wuhan, China
Abstract
Discrete cosine transform (DCT) is widely used in signal processing. This paper presents a novel approach to perform DCT. DCT is expressed in terms of discrete moments and a systolic array for computing DCT with only a few multiplications and without any cosine evaluations has been proposed. The execution time of the systolic array is only O(Nlog2N/log2log2N) in computing 1D DCT. The approach is also applicable to multiple dimensional DCT and DCT inverses.
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Jianguo Liu, H. F. Li, Francis H. Y. Chan, F. K. Lam, "Systolic array for fast computation of discrete cosine transform", Proc. SPIE 3545, International Symposium on Multispectral Image Processing (ISMIP'98), (25 September 1998); doi: 10.1117/12.323606; https://doi.org/10.1117/12.323606
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