Title :
Learning Conditional Random Fields for Stereo
Author :
Scharstein, Daniel ; Pal, Chris
Author_Institution :
Middlebury Coll., Middlebury
Abstract :
State-of-the-art stereo vision algorithms utilize color changes as important cues for object boundaries. Most methods impose heuristic restrictions or priors on disparities, for example by modulating local smoothness costs with intensity gradients. In this paper we seek to replace such heuristics with explicit probabilistic models of disparities and intensities learned from real images. We have constructed a large number of stereo datasets with ground-truth disparities, and we use a subset of these datasets to learn the parameters of conditional random fields (CRFs). We present experimental results illustrating the potential of our approach for automatically learning the parameters of models with richer structure than standard hand-tuned MRF models.
Keywords :
image colour analysis; probability; random processes; stereo image processing; color change; conditional random fields; ground-truth disparities; object boundary; probabilistic model; real image; stereo vision algorithm; Belief propagation; Costs; Educational institutions; Intensity modulation; Learning systems; Markov random fields; Minimization methods; Optimization methods; Stereo vision; Training data;
Conference_Titel :
Computer Vision and Pattern Recognition, 2007. CVPR '07. IEEE Conference on
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-1179-3
Electronic_ISBN :
1063-6919
DOI :
10.1109/CVPR.2007.383191