Extraction and representation of shape features for CAD/CAM applications


We consider the two issues of recognizing and representing shape features in the context of a CAD/CAM application. A definition of shape feature is introduced and a classification is attempted. The major approaches to automatic recognition of shape features are classified, and some representative methods are described. Finally, the problem of shape feature description is discussed, and modular boundary models are proposed as an effective support for feature-based object description.

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