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Feature Point Detection and Curve Approximation for Early Processing of Freehand Sketches

Freehand sketching is both a natural and crucial part of 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 using feature point detection and approximation. We demonstrate how multiple sources of information can be combined for feature detection in strokes and apply this technique using two approaches to signal processing, one using simple average based thresholding and a second using scale space.

Identiferoai:union.ndltd.org:MIT/oai:dspace.mit.edu:1721.1/7077
Date01 May 2001
CreatorsSezgin, Tevfik Metin
Source SetsM.I.T. Theses and Dissertation
Languageen_US
Detected LanguageEnglish
Format82 p., 10553461 bytes, 5067939 bytes, application/postscript, application/pdf
RelationAITR-2001-009

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