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FV polar coding for lossy compression with an improved exponent

  • Runxin Wang
  • , Junya Honda
  • , Hirosuke Yamamoto
  • , Rongke Liu
  • Beihang University
  • The University of Tokyo

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Polar codes achieve the rate-distortion bound for nonuniform sources and/or asymmetric distortion measures. However, the performance is not always near optimal for finite code length, especially for short code length. In this paper a new scheme for lossy source coding is proposed. In addition to polar coding, arithmetic coding is applied in the scheme. The source is first encoded by polar coding for lossy compression, then it is further compressed losslessly by arithmetic coding. It is shown that the scheme achieves the rate-distortion bound asymptotically with a good empirical performance. It is also shown that the distortion of the scheme has a better second-order exponent than those of the other polar coding schemes.

源语言英语
主期刊名Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015
出版商Institute of Electrical and Electronics Engineers Inc.
1517-1521
页数5
ISBN(电子版)9781467377041
DOI
出版状态已出版 - 28 9月 2015
活动IEEE International Symposium on Information Theory, ISIT 2015 - Hong Kong, 香港特别行政区
期限: 14 6月 201519 6月 2015

出版系列

姓名IEEE International Symposium on Information Theory - Proceedings
2015-June
ISSN(印刷版)2157-8095

会议

会议IEEE International Symposium on Information Theory, ISIT 2015
国家/地区香港特别行政区
Hong Kong
时期14/06/1519/06/15

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