Shape Similarity and Visual Parts

12 years 8 months ago
Shape Similarity and Visual Parts
Abstract. Human perception of shape is based on visual parts of objects to a point that a single, significant visual part is sufficient to recognize the whole object. For example, if you see a hand in the door, you expect a human behind the door. Therefore, a cognitively motivated shape similarity measure for recognition applications should be based on visual parts. This cognitive assumption leads to two related problems of scale selection and subpart selection. To find a given query part Q as part of an object C, Q needs to have a correct size with regards to C (scale selection). Assuming that the correct size is selected, the part Q must be compared to all possible subparts of C (subpart selection). For global, contour-based similarity measures, scaling the whole contour curves of both objects to the same length usually solves the problem of scale selection. Although this is not an optimal solution, it works if the whole contour curves are ’sufficiently’ similar. Subpart select...
Longin Jan Latecki, Rolf Lakämper, Diedrich W
Added 06 Jul 2010
Updated 06 Jul 2010
Type Conference
Year 2003
Where DGCI
Authors Longin Jan Latecki, Rolf Lakämper, Diedrich Wolter
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