Recognize Features From Freehand Sketches
Teng-Shang Hwang, David G. Ullman · 1994
Abstract A feature recognition system which allows the computer to capture sketches made by a mechanical designer is described. The system takes the user’s input sketching actions and interprets the collection of 2D geometric elements to extract 3D information from them in terms of mechanical features. A application domain, knowledge representation, the derivation of feature recognition rules, inference mechanism, and conclusions are presented in this article.