Title
Sparse Stereo Disparity Map Densification Using Hierarchical Image Segmentation
Abstract
We describe a novel method for propagating disparity values using hierarchical segmentation by waterfall and robust regression models. High confidence disparity values obtained by state of the art stereo matching algorithms are interpolated using a coarse to fine approach. We start from a coarse segmentation of the image and try to fit each region's disparities using robust regression models. If the fit is not satisfying, the process is repeated on a finer region's segmentation. Erroneous values in the initial sparse disparity maps are generally excluded, as we use robust regressions algorithms and left-right consistency checks. Final disparity maps are therefore not only denser but can also be more accurate. The proposed method is general and independent from the sparse disparity map generation: it can therefore be used as a post-processing step for any stereo-matching algorithm.
Year
DOI
Venue
2017
10.1007/978-3-319-57240-6_14
MATHEMATICAL MORPHOLOGY AND ITS APPLICATIONS TO SIGNAL AND IMAGE PROCESSING (ISMM 2017)
Keywords
Field
DocType
Stereo, Hierarchical segmentation, Robust regression model, Waterfall, Disparity map, Densification
Stereo matching,Computer vision,Scale-space segmentation,Pattern recognition,Segmentation,Computer science,Interpolation,Image segmentation,Robust regression,Artificial intelligence
Conference
Volume
ISSN
Citations 
10225
0302-9743
3
PageRank 
References 
Authors
0.37
10
5
Name
Order
Citations
PageRank
Sébastien Drouyer130.37
Serge Beucher29512.79
Michel Bilodeau3264.73
Moreaud, M.442.08
Loïc Sorbier530.37