論文

査読有り
2015年

Two Layer Coding of HDR Images with Noise Bias Compensation

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

開始ページ
436
終了ページ
439
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.2015.7415309
出版者・発行元
IEEE

This paper introduces a noise bias compensation (NBC) to a two layer backward compatible high dynamic range (HDR) image coding to decrease data volume of the compressed data. In this system, dynamic range of the input HDR image is reduced with tone mapping (TM) to generate a low dynamic range (LDR) image. It is encoded to generate a bit stream in the base layer. In the enhancement layer, quantization noise added by lossy coding of the LDR image is amplified by the inverse of TM. It brings about much bit rate in this layer. To cope with this problem, this paper introduces NBC to reduce variance of the noise. It compensates noise bias (NB) according to an observed pixel value. hi this paper, NB is defined as the mean of the noise in the same observed pixel value from different original values. It is experimentally observed that the proposed method significantly reduces data volume in the enhancement layer at high quality lossy coding of LDR images.

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.1109/APSIPA.2015.7415309
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000382954100087&DestApp=WOS_CPL
URL
http://dblp.uni-trier.de/db/conf/apsipa/apsipa2015.html#conf/apsipa/IwahashiHYK15
ID情報
  • DOI : 10.1109/APSIPA.2015.7415309
  • DBLP ID : conf/apsipa/IwahashiHYK15
  • Web of Science ID : WOS:000382954100087

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