標題: Fast Radix-q and Mixed-Radix Algorithms for Type-IV DCT
作者: Hsu, Han-Wen
Liu, Chi-Min
資訊工程學系
Department of Computer Science
關鍵字: Fast mixed-radix DCT algorithm;fast radix-q DCT algorithm
公開日期: 2008
摘要: This letter proposes a fast radix-q algorithm to compute type-IV discrete cosine transform (DCT) of the length q(lambda), where q is an odd positive integer. The proposed fast radix-q algorithm has merits in computational complexity, parallelism, and numerical stability over existing algorithms. Furthermore, the fast radix-q algorithm is used to develop the fast mixed-radix type-II/type-IV DCT algorithm for composite lengths.
URI: http://hdl.handle.net/11536/9913
http://dx.doi.org/10.1109/LSP.2008.2005441
ISSN: 1070-9908
DOI: 10.1109/LSP.2008.2005441
期刊: IEEE SIGNAL PROCESSING LETTERS
Volume: 15
起始頁: 910
結束頁: 913
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