論文

査読有り
2015年

Channel Scaling for Rounding Noise Reduction in Minimum Lifting 3D Wavelet Transform

2015 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA)
  • Fairoza Amira Binti Hamzah
  • ,
  • Taichi Yoshida
  • ,
  • Masahiro Iwahashi
  • ,
  • Hitoshi Kiya

開始ページ
888
終了ページ
891
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1109/APSIPA.2015.7415398
出版者・発行元
IEEE

An integer transform is used in lossless-lossy coding since it can reconstruct an input signal without any loss at output of the backward transform. Recently, its number of lifting steps is reduced as well as delay from input to output introducing multi-dimensional memory accessing. However it has a problem that quality of the reconstructed signal in lossy coding has its upper bound in the rate distortion curve. This is because the noise generated by rounding operations in each lifting step inside the integer transform does not contribute to data compression. This paper tries to reduce the rounding noise observed at output of the integer transform introducing channel scaling inside the transform. As a result of experiments, it was observed that the proposed method improves quality of the decoded signal in lossy coding mode.


リンク情報
DOI
https://doi.org/10.1109/APSIPA.2015.7415398
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000382954100169&DestApp=WOS_CPL
URL
http://dblp.uni-trier.de/db/conf/apsipa/apsipa2015.html#conf/apsipa/HamzahYIK15
ID情報
  • DOI : 10.1109/APSIPA.2015.7415398
  • DBLP ID : conf/apsipa/HamzahYIK15
  • Web of Science ID : WOS:000382954100169

エクスポート
BibTeX RIS