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Multi-Illuminant Estimation With Conditional Random Fields

delete2014-01-01
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PRE
AI
S
Shida Beigpour *
C
Christian Rieß
J
Joost van de Weijer
E
Elli Angelopoulou
DOI:10.1109/TIP.2013.2286327delete
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Abstract

Abstract

En 中文
Most existing color constancy algorithms assume uniform illumination. However, in real-world scenes, this is not often the case. Thus, we propose a novel framework for estimating the colors of multiple illuminants and their spatial distribution in the scene. We formulate this problem as an energy minimization task within a conditional random field over a set of local illuminant estimates. In order to quantitatively evaluate the proposed method, we created a novel data set of two-dominant-illuminant images comprised of laboratory, indoor, and outdoor scenes. Unlike prior work, our database includes accurate pixel-wise ground truth illuminant information. The performance of our method is evaluated on multiple data sets. Experimental results show that our framework clearly outperforms single illuminant estimators as well as a recently proposed multi-illuminant estimation approach.
Keywords:
Color constancy
CRF
multi-illuminant
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Journal

IEEE Transactions on Image Processing cover
IEEE Transactions on Image Processing
IF:
13.7
Papers:
1.0W
Citations:
8.4W

Organization

C
centre de visio per computador (cvc)
Scholars:
291
Papers: 246
Citations: 0
A
Autonomous University of Barcelona
Scholars:
3.7W
Papers: 2.6W
Citations: 47