2.845

2023影响因子

(CJCR)

  • 中文核心
  • EI
  • 中国科技核心
  • Scopus
  • CSCD
  • 英国科学文摘

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

基于主方向构造二分树复数小波的新方法

王红霞 陈波 成礼智

王红霞, 陈波, 成礼智. 基于主方向构造二分树复数小波的新方法. 自动化学报, 2006, 32(1): 47-53.
引用本文: 王红霞, 陈波, 成礼智. 基于主方向构造二分树复数小波的新方法. 自动化学报, 2006, 32(1): 47-53.
WANG Hong-Xia, CHEN Bo, CHENG Li-Zhi. A New Construction Method for the Dual Tree Complex Wavelet Based on Direction Sensitivity. ACTA AUTOMATICA SINICA, 2006, 32(1): 47-53.
Citation: WANG Hong-Xia, CHEN Bo, CHENG Li-Zhi. A New Construction Method for the Dual Tree Complex Wavelet Based on Direction Sensitivity. ACTA AUTOMATICA SINICA, 2006, 32(1): 47-53.

基于主方向构造二分树复数小波的新方法

详细信息
    通讯作者:

    王红霞

A New Construction Method for the Dual Tree Complex Wavelet Based on Direction Sensitivity

More Information
    Corresponding author: WANG Hong-Xia
  • 摘要: The conception of “main direction” of multi-dimensional wavelet is established in this paper, and the capabilities of several classical complex wavelets for representing directional singularities are investigated based on their main directions. It is proved to be impossible to represent directional singularities optimally by a multi-resolution analysis (MRA) of L2(R2). Based on the above results, a new algorithm to construct Q-shift dual tree complex wavelet is proposed. By optimizing the main direction of parameterized wavelet filters, the difficulty in choosing stop-band frequency is overcome and the performances of the designed wavelet are improved too. Furthermore, results of image enhancement by various multi-scale methods are given, which show that the new designed Q-shift complex wavelet do offer significant improvement over the conventionally used wavelets. Direction sensitivity is an important index to the performance of 2D wavelets.
  • 加载中
计量
  • 文章访问数:  3348
  • HTML全文浏览量:  190
  • PDF下载量:  1457
  • 被引次数: 0
出版历程
  • 收稿日期:  2005-01-04
  • 修回日期:  2005-09-10
  • 刊出日期:  2006-01-20

目录

    /

    返回文章
    返回