Pixel-wise Orthogonal Decomposition for Color Illumination Invariant and Shadow-free Image
Pixel-wise Orthogonal Decomposition for Color Illumination Invariant and Shadow-free Image
复制标题
彩色照明不变无影图像的逐像素正交分解
DOI:
10.1364/oe.23.002220
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发表时间:
2014-06
期刊:
影响因子:
3.8
通讯作者:
唐延东
中科院分区:
文献类型:
--
作者:
屈靓琼;田建东;韩志;唐延东
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.
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DOI:
10.1007/978-3-642-15552-9_24
发表时间:
2010-09
期刊:
--
影响因子:
--
作者:
Jean-François Lalonde;Alexei A. Efros;S. Narasimhan
通讯作者:
Jean-François Lalonde;Alexei A. Efros;S. Narasimhan
DOI:
--
发表时间:
2003-10
期刊:
--
影响因子:
--
作者:
G. Finlayson;S. D. Hordley
通讯作者:
G. Finlayson;S. D. Hordley
影响因子:
--
作者:
LAND, EH;MCCANN, JJ
通讯作者:
MCCANN, JJ
DOI:
10.1109/iccv.2001.937606
发表时间:
2001-07
期刊:
Proceedings Eighth IEEE International Conference on Computer Vision. ICCV 2001
影响因子:
--
作者:
Yair Weiss
通讯作者:
Yair Weiss
DOI:
10.1109/tpami.2006.18
发表时间:
2006-01-01
影响因子:
23.6
作者:
Finlayson, GD;Hordley, SD;Drew, MS
通讯作者:
Drew, MS