DocumentCode :
2711510
Title :
A physically-based approach to reflection separation
Author :
Kong, Naejin ; Tai, Yu-Wing ; Shin, Sung Yong
Author_Institution :
Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
fYear :
2012
fDate :
16-21 June 2012
Firstpage :
9
Lastpage :
16
Abstract :
We propose a physically-based approach to separate reflection using multiple polarized images with a background scene captured behind glass. The input consists of three polarized images, each captured from the same view point but with a different polarizer angle separated by 45 degrees. The output is the high-quality separation of the reflection and background layers from each of the input images. A main technical challenge for this problem is that the mixing coefficient for the reflection and background layers depends on the angle of incidence and the orientation of the plane of incidence, which are spatially-varying over the pixels of an image. Exploiting physical properties of polarization for a double-surfaced glass medium, we propose an algorithm which automatically finds the optimal separation of the reflection and background layers. Thorough experiments, we demonstrate that our approach can generate superior results to those of previous methods.
Keywords :
image processing; background layer; background scene; double-surfaced glass medium; incidence angle; incidence plane orientation; mixing coefficient; physically-based approach; polarization property; polarized image; polarizer angle; reflection layer; reflection separation; Ash; Cameras; Cost function; Equations; Glass; Image edge detection; Mutual information;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Vision and Pattern Recognition (CVPR), 2012 IEEE Conference on
Conference_Location :
Providence, RI
ISSN :
1063-6919
Print_ISBN :
978-1-4673-1226-4
Electronic_ISBN :
1063-6919
Type :
conf
DOI :
10.1109/CVPR.2012.6247652
Filename :
6247652
Link To Document :
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