根据小波系数分布参数进行图像质量无参考评价

doi:10.3969/j.issn.0255-8297.2013.02.011

应用科学学报 ›› 2013, Vol. 31 ›› Issue (2): 170-176.doi: 10.3969/j.issn.0255-8297.2013.02.011

根据小波系数分布参数进行图像质量无参考评价

李洪均

南通大学电子信息学院，江苏南通226019

收稿日期:2012-02-24 修回日期:2012-11-01 出版日期:2013-03-25 发布日期:2012-11-01
通信作者: 李洪均，博士，研究方向：图像处理，E-mail: lihongjun@ntu.edu.cn
作者简介:李洪均，博士，研究方向：图像处理，E-mail: lihongjun@ntu.edu.cn
基金资助:
国家自然科学基金(No.61171077)；江苏省高校自然科学研究计划基金(No.12KJB510025, No.12KJB510026)；交通部应用基础研究项目基金(No.2011-319-813-510)；交通部交通运输行业项目基金(No.2010-353-332-110)；江苏省社会发展项目基金（No.BE2010686）；南通市引进人才项目基金（No.03080415）资助

No-reference Image Quality Assessment Based on Parameters of Wavelet Coefficients Distribution

LI Hong-jun

School of Electronic Information Engineering, Nantong University, Nantong 226019, Jiangsu Province, China

Received:2012-02-24 Revised:2012-11-01 Online:2013-03-25 Published:2012-11-01

摘要/Abstract

摘要： 针对无参考评价算法的普遍适用性问题，提出了一种适用于各种失真类型图像的无参考评价方法. 利用自然场景的统计信息进行图像评价，用广义高斯分布拟合小波系数分布，结合拟合参数来度量失真程度，获得对失真图像的客观评价. 实验结果表明，该算法广泛适用于各类失真图像，质量评价结果与主观评价有较好的一致性.

关键词: 无参考图像质量评价, 小波系数, 广义高斯分布

Abstract: We propose a no-reference method for image quality assessment to be used to various types of image distortions. We assess the image using statistic information of natural scenes, and use the generalized Gaussian density model to fit the marginal distribution of wavelet coefficients. Degree of image distortion is measured with the parameter values in the generalized Gaussian density model. Objective assessment of the image quality is obtained by quantifying the difference between the values of scale and shape parameters. Experimental results are consistent with subjective assessments, showing that the proposed method can be applied to most common types of image distortion to give good prediction.

Key words: no-reference image quality assessment, wavelet coefficients, generalized Gaussian density

中图分类号:

TP391.41

李洪均. 根据小波系数分布参数进行图像质量无参考评价[J]. 应用科学学报, 2013, 31(2): 170-176.

LI Hong-jun. No-reference Image Quality Assessment Based on Parameters of Wavelet Coefficients Distribution[J]. Journal of Applied Sciences, 2013, 31(2): 170-176.

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根据小波系数分布参数进行图像质量无参考评价

No-reference Image Quality Assessment Based on Parameters of Wavelet Coefficients Distribution

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