Design Rationale

Early Processing in Support of Sketch Understanding

Freehand sketching is a natural and crucial part of everyday human interaction, especially important in design, yet is unsupported by current design automation software. We are working to combine the flexibility and ease of use of paper and pencil with the processing power of a computer, to produce a design environment that feels as natural as paper, yet is considerably smarter. One of the most basic steps in accomplishing this is converting the original digitized pen strokes in the sketch into the intended geometric objects. We have implemented a system that combines multiple sources of knowledge to provide robust early processing for freehand sketching.

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  • Metin Sezgin and Randall Davis. Free-Hand Stroke Approximation for Intelligent Sketching. Submitted to MIT Student Oxygen Workshop 2001, [PS], [PDF]

  • Metin Sezgin. Feature Point Detection and Curve Approximation for Early Processing of Free-Hand Sketches. Master's thesis, Massachusetts Institute of Technology, 2001. [PS], [PDF]

  • Metin Sezgin and Randall Davis (2000). Early Processing in Sketch Understanding. MIT Artificial Intelligence Laboratory Annual Abstract, September 2000. [PS], [PDF]


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