FREE-FORM FEATURE REPRESENTATION AND COMPARISON
msra(2006)
摘要
Knowledge Management systems have been applied to sev- eral areas in the manufacturing industry. These applications have been predominately text based, however, much of manu- facturing's information is related to geometric features. In this paper we describe a representation and content-based search method such that given a geometric specification, the knowledge of previous designs having similar feature requirements is re- turned. The technique uses curvature based shape index segmen- tation to construct an attributed graph-like descriptor for 2.5D free-form surface features, such as those found on stamped com- ponents. Efficient edit distance methods are applied for search. Experiments on a database of freeform features indicate feasible runtimes with favourable results.
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关键词
databases,manufacturing industry,shapes,image segmentation,knowledge management
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