Image Retargeting Quality Assessment

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	Image Retargeting Quality Assessment
	Liu, Yong-Jin 1; Luo, Xi 1; Xuan, Yu-Ming2 ; Chen, Wen-Feng2 ; Fu, Xiao-Lan2
刊名	COMPUTER GRAPHICS FORUM
	2011
卷号	30 期号:2 页码:583-592
ISSN号	0167-7055
通讯作者	Liu, YJ (reprint author), Tsinghua Univ, TNList, Dept Comp Sci & Technol, Beijing, Peoples R China.
产权排序	2
英文摘要	Content-aware image retargeting is a technique that can flexibly display images with different aspect ratios and simultaneously preserve salient regions in images. Recently many image retargeting techniques have been proposed. To compare image quality by different retargeting methods fast and reliably, an objective metric simulating the human vision system (HVS) is presented in this paper. Different from traditional objective assessment methods that work in bottom-up manner (i.e., assembling pixel-level features in a local-to-global way), in this paper we propose to use a reverse order (top-down manner) that organizes image features from global to local viewpoints, leading to a new objective assessment metric for retargeted images. A scale-space matching method is designed to facilitate extraction of global geometric structures from retargeted images. By traversing the scale space from coarse to fine levels, local pixel correspondence is also established. The objective assessment metric is then based on both global geometric structures and local pixel correspondence. To evaluate color images, CIE Lab* color space is utilized. Experimental results are obtained to measure the performance of objective assessments with the proposed metric. The results show good consistency between the proposed objective metric and subjective assessment by human observers.
学科主题	Psychology of Journalism
收录类别	SCI
项目简介	The authors thank the reviewers for their comments that help improve this paper. The program of PatchMatch, ShiftMap and the RetargetMe benchmark are taken from original publication websites. The authors thank Mr. G.X. Zhang for implementing other retargeting methods in Experiment 3. This work was supported by the National Science Foundation of China (Project 60970099), the National Basic Research Program of China 2011CB302201 and Tsinghua University Initiative Scientific Research Program 20101081863.
原文出处	http://cg.cs.tsinghua.edu.cn/papers/lyj2.PDF
语种	英语
WOS记录号	WOS:000289996100036
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/12849]
专题	心理研究所_脑与认知科学国家重点实验室
作者单位	1.Tsinghua Univ, TNList, Dept Comp Sci & Technol, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Psychol, State Key Lab Brain & Cognit Sci, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yong-Jin,Luo, Xi,Xuan, Yu-Ming,et al. Image Retargeting Quality Assessment[J]. COMPUTER GRAPHICS FORUM,2011,30(2):583-592.
APA	Liu, Yong-Jin,Luo, Xi,Xuan, Yu-Ming,Chen, Wen-Feng,&Fu, Xiao-Lan.(2011).Image Retargeting Quality Assessment.COMPUTER GRAPHICS FORUM,30(2),583-592.
MLA	Liu, Yong-Jin,et al."Image Retargeting Quality Assessment".COMPUTER GRAPHICS FORUM 30.2(2011):583-592.