Similarity test for free-form surfaces in product design: An integrated approach

Research output: Contribution to conferencePaperpeer-review


Three dimensional free-form surfaces, widely used in CAD/CAM systems, allow users to design and manufacture 3D objects of greater complexity. An integrated approach is proposed to find the level of similarity given two free-form surfaces with substructures. First, the Gaussian curvature values of each surface are mapped into the two-dimensional space, and a shape-based measure is obtained using statistical methods to represent the level of similarity. Second, the comparison of substructures provides additional information about shape and topology, and assists in improving the shape-based measure iteratively. This approach can be applied to surfaces under various transformations, and shows potential associations among surfaces belonging to a single product design, or from different ones. The proposed method can be used to develop data mining techniques for large product databases, and tools for copyright protection of CAD models are expected to evolve.

Original languageEnglish (US)
StatePublished - 2005
EventIIE Annual Conference and Exposition 2005 - Atlanta, GA, United States
Duration: May 14 2005May 18 2005


OtherIIE Annual Conference and Exposition 2005
Country/TerritoryUnited States
CityAtlanta, GA

All Science Journal Classification (ASJC) codes

  • General Engineering


Dive into the research topics of 'Similarity test for free-form surfaces in product design: An integrated approach'. Together they form a unique fingerprint.

Cite this