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局部方差在图像质量评价中的应用

王宇庆

王宇庆. 局部方差在图像质量评价中的应用[J]. , 2011, 4(5): 531-536.
引用本文: 王宇庆. 局部方差在图像质量评价中的应用[J]. , 2011, 4(5): 531-536.
WANG Yu-qing. Application of local variance in image quality assessment[J]. Chinese Optics, 2011, 4(5): 531-536.
Citation: WANG Yu-qing. Application of local variance in image quality assessment[J]. Chinese Optics, 2011, 4(5): 531-536.

局部方差在图像质量评价中的应用

基金项目: 

中国科学院二期创新工程基金资助项目(No.C50Top2)

详细信息
    作者简介:

    王宇庆 (1979-),男,吉林长春人,博士,助理研究员,主要从事图像质量评价、图像融合、图像增强、VLSI数字信号处理等方面的研究。E-mail:wyq7903@yahoo.com.cn

  • 中图分类号: TP391.4

Application of local variance in image quality assessment

  • 摘要: 将灰度图像的局部方差分布(QLS)作为表征图像结构信息的一个重要特征,对局部方差分布矩阵进行奇异值分解,计算得到相应的奇异值特征向量;通过计算降质图像与原参考图像局部方差矩阵奇异值特征向量的夹角大小度量两图像的结构相似度,实现了对降质图像的质量评价。实验结果表明:局部方差分布更能突出图像的结构特征,评价结果优于传统的均方误差(MSE)、峰值信噪比(PSNR)、结构相似度(SSIM)以及直接评价图像像素分布的奇异值分析(SVD)等方法,与人眼视觉感知效果的一致性较好。

     

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出版历程
  • 收稿日期:  2011-07-11
  • 修回日期:  2011-08-13
  • 刊出日期:  2011-10-25

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