https://scholars.lib.ntu.edu.tw/handle/123456789/316647
標題: | A practical solution to transform-domain rounding | 作者: | Chen, C. Wu, P.-H. HOMER H. CHEN |
公開日期: | 2005 | 卷: | 1 | 起(迄)頁: | 487-492 | 來源出版物: | 2005 International Conference on Wireless Networks, Communications and Mobile Computing | 摘要: | In many multimedia applications, manipulation of video signals is preferably performed in the transform domain. Most of such operations are derived from their counterparts in the pixel domain. However, the rounding operation can not be obtained this way because it is a nonlinear operation. Without a proper treatment, it may become a major source of errors for multimedia systems, causing a mismatch between the encoder and the decoder. This problem seems to have been largely ignored. In this paper, we propose a practical solution to this problem by a thorough examination of the mathematical property of the rounding error in the context of transform-domain video transcoding and demonstrate its performance. © 2005 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-34547237160&doi=10.1109%2fWIRLES.2005.1549457&partnerID=40&md5=a26f36ab559ca52a628da67347d4935c http://scholars.lib.ntu.edu.tw/handle/123456789/316647 |
DOI: | 10.1109/WIRLES.2005.1549457 | SDG/關鍵字: | Decoding; Error analysis; Mobile computing; Multimedia systems; Nonlinear systems; Video signal processing; Encoders; Pixel domains; Rounding errors; Transform domain rounding; Mathematical transformations |
顯示於: | 電機工程學系 |
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01549457.pdf | 3.43 MB | Adobe PDF | 檢視/開啟 |
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