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Pixel-wise orthogonal decomposition for color illumination invariant and shadow-free image
Qu LQ(屈靓琼); Tian JD(田建东); Han Z(韩志); Tang YD(唐延东)
作者部门机器人学研究室
发表期刊OPTICS EXPRESS
ISSN1094-4087
2015
卷号23期号:3页码:2220-2239
收录类别SCI ; EI
EI收录号20150800538052
WOS记录号WOS:000349688800050
产权排序1
摘要In this paper, we propose a novel, effective and fast method to obtain a color illumination invariant and shadow-free image from a single outdoor image. Different from state-of-the-art methods for shadow-free image that either need shadow detection or statistical learning, we set up a linear equation set for each pixel value vector based on physically-based shadow invariants, deduce a pixel-wise orthogonal decomposition for its solutions, and then get an illumination invariant vector for each pixel value vector on an image. The illumination invariant vector is the unique particular solution of the linear equation set, which is orthogonal to its free solutions. With this illumination invariant vector and Lab color space, we propose an algorithm to generate a shadow-free image which well preserves the texture and color information of the original image. A series of experiments on a diverse set of outdoor images and the comparisons with the state-of-the-art methods validate our method. © 2015 Optical Society of America.
语种英语
WOS标题词Science & Technology ; Physical Sciences
WOS类目Optics
关键词[WOS]SINGLE IMAGE ; INTRINSIC IMAGES ; REMOVAL ; COMPONENTS
WOS研究方向Optics
引用统计
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/15755
专题机器人学研究室
通讯作者Tang YD(唐延东)
作者单位1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式
GB/T 7714
Qu LQ,Tian JD,Han Z,et al. Pixel-wise orthogonal decomposition for color illumination invariant and shadow-free image[J]. OPTICS EXPRESS,2015,23(3):2220-2239.
APA Qu LQ,Tian JD,Han Z,&Tang YD.(2015).Pixel-wise orthogonal decomposition for color illumination invariant and shadow-free image.OPTICS EXPRESS,23(3),2220-2239.
MLA Qu LQ,et al."Pixel-wise orthogonal decomposition for color illumination invariant and shadow-free image".OPTICS EXPRESS 23.3(2015):2220-2239.
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