Sketching contours

We introduce an over-sketching interface for feature-preserving surface mesh editing. The user sketches a stroke that is the suggested position of part of a silhouette of the displayed surface. The system then segments all image-space silhouettes of the projected surface, identifies among all silhouette segments the best matching part, derives vertices in the surface mesh corresponding to the silhouette part, selects a sub-region of the mesh to be modified, and feeds appropriately modified vertex positions together with the sub-mesh into a mesh deformation tool. The overall algorithm has been designed to enable interactive modification of the surface

• Type: Journal
• Year: 2008
• Where: CG
• Authors: Johannes Zimmermann, Andrew Nealen, Marc Alexa
• Keywords: CG 2008, Computer Graphics, Displayed Surface, Mesh, Silhouette