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Simultaneous Color Consistency and Depth Map Estimation for Radiometrically Varying Stereo Images
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BibTeX
@MISC{Heo_simultaneouscolor,
author = {Yong Seok Heo and Kyoung Mu Lee and Sang Uk Lee},
title = {Simultaneous Color Consistency and Depth Map Estimation for Radiometrically Varying Stereo Images},
year = {}
}
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Abstract
In this paper, we propose a new method that infers accurate depth maps and color-consistent images between radiometrically varying stereo images, simultaneously. In general, stereo matching and performing color consistency between stereo images are a chicken-and-egg problem. Color consistency enhances the performance of stereo matching, while accurate correspondences from stereo disparities improve color consistency between stereo images. We devise a new iterative framework in which these two processes can boost each other. For robust stereo matching, we utilize the mutual information-based method combined with the SIFT descriptor from which we can estimate the joint pdf in log-chromaticity color space. From this joint pdf, we can estimate a linear relationship between the corresponding pixels in stereo images. Using this linear relationship and the estimated depth maps, we devise a stereo color histogram equalization method to make color-consistent stereo images which conversely boost the disparity map estimation. Experimental results show that our method produces both accurate depth maps and color-consistent stereo images even for stereo images with severe radiometric differences.
Keyphrases
stereo image color consistency depth map estimation simultaneous color consistency radiometrically varying stereo image linear relationship stereo matching depth map joint pdf color-consistent stereo image sift descriptor new method robust stereo matching mutual information-based method disparity map estimation stereo color histogram equalization method accurate correspondence accurate depth map color-consistent image corresponding pixel chicken-and-egg problem new iterative framework severe radiometric difference log-chromaticity color space experimental result stereo disparity
