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Qualitative constraints for structure-from-motion

โœ Scribed by William B. Thompson; James S. Painter

Book ID
103997054
Publisher
Elsevier Science
Year
1992
Weight
924 KB
Volume
56
Category
Article
ISSN
1049-9660

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โœฆ Synopsis

Existing computational models of structure-from-motion are all based on a quantitative analysis of variations in optical flow or feature point correspondences within the interiors of single objects. We present an alternative approach effective for objects rotating in depth. The method involves a set of qualitative constraints on shape and motion based on patterns of flow at surface boundaries. These constraints are used in the development of a simple approximation technique for recovering surface shape. The approach is based on large-magnitude effects that are likely to be easily extracted, even from noisy data. In addition, it explains a variety of phenomena described in the literature on human vision that cannot be accounted for by any existing computational model of structure-from-motion.

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