Title :
Comments on "Efficiently computing and representing aspect graphs of polyhedral objects"
Author_Institution :
Dipartimento di Autom. e Inf., Politecnico di Torino, Italy
Abstract :
This correspondence is originated by the definition of aspect given in the above paper by Gigus-Canny-Seidel (ibid., vol.13, no.6 (1991)) on the computation of aspect graphs of polyhedra. Simple examples are presented which show that the data stored according to this definition can be unsuitable for identifying an object or its attitude through a topological match. A definition is suggested which does not incur the problems pointed out.
Keywords :
computational geometry; edge detection; graph theory; image matching; object recognition; aspect graphs; edge detection; image structure graph; object recognition; polyhedral objects; topological match; Data mining; Machine intelligence; Shape;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
