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Shape representation and indexing based on region connection calculus and oriented matroid theory

AuthorsStaffetti, Ernesto; Grau Saldes, Antoni; Serratosa, Francesc; Sanfeliu, Alberto
KeywordsPattern recognition
Pattern recognition systems
Issue Date2003
Citation11th International Conference on Discrete Geometry for Computer Imagery: pp. 267-276 (2003)
AbstractIn this paper a novel method for indexing views of 3D objects is presented. The topological properties of the regions of the views of a set of objects are used to define an index based on the region connection calculus and oriented matroid theory. Both are formalisms for qualitative spatial representation and reasoning and are complementary in the sense that whereas the region connection calculus encodes information about connectivity of pairs of connected regions of the view, oriented matroids encode relative position of the disjoint regions of the view and give local and global topological information about their spatial distribution. This indexing technique is applied to 3D object hypothesis generation from single views to reduce candidates in object recognition processes.
DescriptionInternational Conference on Discrete Geometry for Computer Imagery (DGCI), 2003, Naples (Italy)
Appears in Collections:(IRII) Comunicaciones congresos
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