Chris Jaynes, Frank Stolle and Robert T. Collins,
"Task Driven Perceptual Organization for Extraction
of Rooftop Polygons,"
IEEE Workshop on Applications of Computer Vision,
Sarasota, FL, December 1994, pp. 152-159.
Abstract
A new method for extracting planar polygonal rooftops in monocular
aerial imagery is proposed. Structural features are extracted and
hierarchically related using perceptual grouping techniques. Top-down
feature verification is used so that features, and links between the
features, are verified with local information in the image and weighed
in a graph. Cycles in the graph correspond to possible building rooftop
hypotheses. Virtual features are hypothesized for the perceptual
completion of partially occluded rooftops.
Extraction of the "best" grouping of features into a building rooftop
hypothesis is posed as a graph search problem. The maximally weighted,
independent set of cycles in the graph is extracted as the final set
of roof boundaries.
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