Retrieving 3D CAD model by freehand sketches for design reuse

Authors:
Jiale Wang;Yuanjun He;Haishan Tian;Hongming Cai
Affiliations:
Department of Computer Science and Technology, Shanghai Jiaotong University, China;Department of Computer Science and Technology, Shanghai Jiaotong University, China;Department of Computer Science and Technology, Shanghai Jiaotong University, China;School of Software, Shanghai Jiaotong University, China
Venue:
Advanced Engineering Informatics
Year:
2008

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Abstract

Reuse of existing designs can help companies save up a significant amount of time and money in large-scale product development. Searching out similar CAD models of products is a key to facilitating design reuse. This paper proposes a method for retrieving CAD models of mechanical parts by freehand sketches. Users can draw three 2D outline sketches and a skeleton sketch to express their query intent. The 2D outline sketches describe the geometrical information of models and the skeleton sketch contains the topological information. A relevance feedback mechanism is introduced to combine the two similarity degrees measured by 2D outlines or skeleton into a unified one. Experiments are conducted to evaluate the performance of the proposed method.