We have presented a system for automatic facade detection,
segmentation, and parameter estimation in the domain of
stereo-equipped mobile platforms. We have introduced a discriminative
model that leverages both appearance and disparity
features for improved classification accuracy. From the disparity
map, we generate a set of candidate planes using RANSAC
with a planar model that also incorporates local PCA estimates
of plane normals. We combine these in a two-layer Markov
Random Field model that allows for inference on the binary
(building/background) labeling at the mid-level, and for segmentation
of the identified building pixels into individual planar
surfaces corresponding to the candidate planemodels determined
by RANSAC.