Restoration of low frequency coefficients
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DC coefficient restoration scheme is a technique which can be used to increase the compression ability of transform image coding by not transmitting the DC coefficients but instead estimating them from the transmitted AC component. Recently, Tse and Cham proposed an improved version of the technique which allows an image to be restored with no or small visual degradation by transmitting a small portion of the DC coefficients. In this paper, we show that the same technique can be used to restore not only the DC coefficients but also a portion of AC coefficients. As a result, a higher compression ratio can be obtained.
著者Cham WK, Tse FW
會議名稱3rd International Conference on Signal Processing (ICSP 96)
會議開始日14.10.1996
會議完結日18.10.1996
會議地點BEIJING
會議國家/地區中國
出版年份1996
月份1
日期1
出版社PUBLISHING HOUSE ELECTRONICS INDUSTRY
頁次1082 - 1085
國際標準書號7-5053-3890-0
語言英式英語
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; Telecommunications

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