计算机工程2012，Vol.38Issue(5)：19-24,6.
频率与方向敏感SSIM的图像质量评价方法
Image Quality Assessment Method for Frequency and Direction Sensitive SSIM
摘要
Abstract
This paper introduces the special frequency and direction properties of contrast sensitivity of human vision into the calculation of Structural Similarity(SSIM), and proposes a new structural similarity quality assessment method, called Frequency Direction Sensitive Structural Similarity(FDSSS). The value of each sub-band SSIM of the wavelet-decomposed image is calculated. To reflect the direction sensitivity of CSF, SSIM values of sub-bands under the same decomposition level with different directions are weighted according to their relative energy. To reflect the frequency sensitivity of CSF, SSIM values of each decomposition level are weighted based on the frequency magnitudes of each sub-band of CSF. Simulations results in LIVE2 and TID2008 database show that the proposed method is more consistent with subjective evaluation and outperforms than several other popular image quality assessment methods.关键词
图像质量评价/主观质量/人类视觉系统/对比敏感度/离散小波变换/结构相似度Key words
Image Quality Assessment(IQA)/subjective quality/Human Visual System(HVS)/contrast sensitivity/Discrete Wavelet Transform(DWT)/Structural Similarity(SSIM)分类
信息技术与安全科学引用本文复制引用
马丽红,龚紫平..频率与方向敏感SSIM的图像质量评价方法[J].计算机工程,2012,38(5):19-24,6.基金项目
国家自然科学基金资助项目(60972133) （60972133）
广东省自然科 学基金资助项目(9351064101000003) （9351064101000003）
广东省绿色能源技术重点实验室基 金资助项目(2008A060301002) （2008A060301002）
