On combining visual perception and color structure based image quality assessment

On combining visual perception and color structure based image quality assessment
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基于视觉感知和色彩结构的图像质量评估相结合

DOI:
10.1016/j.neucom.2016.01.117
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发表时间:
2016-11
期刊:
影响因子:
6
通讯作者:
He Lihuo
He Lihuo
中科院分区:
计算机科学2区
文献类型:
--
作者:
Lu Wen;Xu Tianjiao;Ren Yuling;He Lihuo

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现有的基于结构计算的图像质量评价方法大多没有考虑视觉颜色敏感度和视觉感知阈值。实际上,人类视觉系统(HVS)对颜色结构非常敏感,并且具有视觉感知阈值,可以通过稀疏表示图像来减少冗余信息。因此,本文提出了一种新的IQA框架,该框架将颜色结构和视觉特征提取相结合,通过视觉特征提取去除视觉不可感知系数,利用最少的结构系数来捕获退化图像的颜色结构变化和失真。通过测量失真图像与参考图像的视觉感知系数比例之差来获得图像质量分数。在LIVE II和TID两个基准数据库上的实验结果表明了该方法的合理性和有效性。
The state-of-the-art image quality assessment (IQA) methods based on structure calculation are mostly implemented without considering visual color sensitivity and visual perception threshold (VPT). Actually, human visual system (HVS) is extremely sensitive to the color structure and has visual perception threshold to reduce redundant information by representing the image sparsely. Hence, through incorporating the color structure and the VPT, this paper proposed a novel IQA framework which utilizes minimum amount of structure coefficients to capture the variation of color structure and distortion of degraded image by applying a VPT to remove the visual unperceived coefficients. The difference of the proportion of visual perceived coefficients between distorted and reference image is measured to acquire image quality score. Experimental results on two benchmark databases (LIVE II and TID) indicate the rationality and validity of the proposed method.
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