Quality assessment for real out-of-focus blurred images

doi:10.1016/j.jvcir.2017.03.007

CORC > 北京大学 > 信息科学技术学院

	Quality assessment for real out-of-focus blurred images
	Liu, Yutao ; Gu, Ke ; Zhai, Guangtao ; Liu, Xianming ; Zhao, Debin ; Gao, Wen
刊名	JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
	2017
关键词	Visual quality assessment Out-of-focus blur Blind/no-reference Phase congruency Visual saliency VISUAL SALIENCY DETECTION STATISTICS DOMAIN
DOI	10.1016/j.jvcir.2017.03.007
英文摘要	Images are vulnerable to different kinds of distortions, such as blur, noise, blockiness etc, which all degrade the image quality. Among the distorted images, out-of-focus blurred images are frequently encountered and occupy a large proportion. However, few efforts have been done to quality evaluation for these images. In this paper, we devise a dedicated quality evaluation scheme to automatically infer the quality of out-of-focus blurred images, which is named GPSQ (Gradient magnitude and Phase congruency-based and Saliency-guided Quality model). In GPSQ a pair of low-level features, including gradient magnitude (GM) and phase congruency (PC), are extracted to characterize the image local blurriness. Then saliency detection is performed on the image to generate a corresponding saliency map. Finally, we weight the local structure map with the saliency map to estimate the visual quality of the out-of-focus blurred image. Experimental results demonstrate the proposed GPSQ delivers high consistency with subjective evaluation results. (C) 2017 Elsevier Inc. All rights reserved.; Major State Basic Research Development Program of China (973 Program) [2015CB351804]; National Science Foundation of China [61672193, 61422112, 61371146, 61521062, 61527804]; SCI(E); ARTICLE; 70-80; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/462348]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Liu, Yutao,Gu, Ke,Zhai, Guangtao,et al. Quality assessment for real out-of-focus blurred images[J]. JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,2017.
APA	Liu, Yutao,Gu, Ke,Zhai, Guangtao,Liu, Xianming,Zhao, Debin,&Gao, Wen.(2017).Quality assessment for real out-of-focus blurred images.JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION.
MLA	Liu, Yutao,et al."Quality assessment for real out-of-focus blurred images".JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION (2017).