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计算机工程 ›› 2010, Vol. 36 ›› Issue (14): 190-192. doi: 10.3969/j.issn.1000-3428.2010.14.069

• 图形图像处理 • 上一篇    下一篇

基于结构相似度的CT域图像质量评价方法

杨春玲,汪 凡   

  1. (华南理工大学电子与信息学院,广州 510640)
  • 出版日期:2010-07-20 发布日期:2010-07-20
  • 作者简介:杨春玲(1970-),女,教授,主研方向:图像和视频处理;汪 凡,硕士研究生
  • 基金资助:
    国家自然科学基金资助项目(60402015);广东省自然科学基金资助项目(06025642)

Image Quality Assessment Method in CT Domain Based on Structural Similarity

YANG Chun-ling, WANG Fan   

  1. (School of Electronic and Information, South China University of Technology, Guangzhou 510640)
  • Online:2010-07-20 Published:2010-07-20

摘要: 提出一种基于结构相似度及人眼视觉系统的图像质量评价方法——Contourlet变换(CT)域结构相似度,采用Contourlet变换提取图像不同频带不同方向上的信息,该方法利用了Contourlet变换系数的优越特性。理论分析和实验结果表明,该方法具有较高的准确性及良好的相关性,可以更好地评判图像质量。

关键词: Contourlet变换, 结构相似度, 人眼视觉系统, Contourlet变换域结构相似度

Abstract: A new method of image quality assessment based on Structural Similarity(SSIM) and Human Vision System(HVS), called CT-SSIM is proposed. The frequency band property of different direction of Contourlet Transform(CT) is used. It also uses the character of CT coefficient. Theory analysis and experimental results show the CT-SSIM is more accurate and has better correlation with the subjective assessment of human beings. It can assess image quality better.

Key words: Contourlet Transform(CT), Structural Similarity(SSIM), Human Visual System(HVS), Contourlet Transform domain-based Structural Similarity(CT-SSIM)

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