Image coding using weighted cosine transform
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員

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摘要A new orthogonal transform, called weighted cosine transform (WCT), is developed for digital image coding applications. The new transform is characterized. The transform matrix is the weighted version of that in the discrete cosine transform (DCT). Various commonly used criteria based on the one-dimensional and two-dimensional Markov models have shown that the performance of the order-8 and order-16 WCT is better than the DCT and the phase-shift cosine transform (PSCT), which is an improved version of the DCT. A fast computational algorithm for the WCT is also derived, which, however, requires more computational efforts than the DCT.
著者Lo Kwok-tung, Cham Wai-kuen
會議名稱1990 IEEE Region 10 Conference on Computer and Communication Systems - IEEE TENCON '90
會議開始日24.09.1990
會議完結日27.09.1990
會議地點Hong Kong
會議國家/地區香港
出版年份1990
月份12
日期1
頁次464 - 468
國際標準書號0879425563
語言英式英語

上次更新時間 2021-16-06 於 23:12