Sketching contours

Johannes Zimmermann, Andrew Nealen, Marc Alexa

    Research output: Contribution to journalArticlepeer-review


    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-yielding a surface editing system that comes close to the experience of sketching 3D models on paper.

    Original languageEnglish (US)
    Pages (from-to)486-499
    Number of pages14
    JournalComputers and Graphics (Pergamon)
    Issue number5
    StatePublished - Oct 2008


    • Deformations
    • Sketch based modeling
    • Sketching
    • User interfaces

    ASJC Scopus subject areas

    • Software
    • Signal Processing
    • General Engineering
    • Human-Computer Interaction
    • Computer Vision and Pattern Recognition
    • Computer Graphics and Computer-Aided Design

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