Title: | Interpretation of Overtracing Freehand Sketching for Geometric Shapes |
Authors: | Ku, Day Chyi Qin, Sheng-Feng Wright, David K. |
Citation: | WSCG '2006: Full Papers Proceedings: The 14-th international Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2006: University of West Bohemia, Plzen, Czech Republic, January 31 – February 2, 2006, p. 263-270. |
Issue Date: | 2006 |
Publisher: | Václav Skala - UNION Agency |
Document type: | konferenční příspěvek conferenceObject |
URI: | http://wscg.zcu.cz/WSCG2006/Papers_2006/Full/!WSCG2006_Full_Proceedings_Final.pdf http://hdl.handle.net/11025/6646 |
ISBN: | 80-86943-03-8 |
Keywords: | 3D modelování;geometrické tvary;kaligrafická rozhraní;design;skicování |
Keywords in different language: | 3D modelling;geometric shapes;calligraphic interfaces;design;sketching |
Abstract: | This paper presents a novel method for interpreting overtracing freehand sketch. The overtracing strokes are interpreted as sketch content and are used to generate 2D geometric primitives. The approach consists of four stages: stroke classification, strokes grouping and fitting, 2D tidy-up with endpoint clustering and parallelism correction, and in-context interpretation. Strokes are first classified into lines and curves by a linearity test. It is followed by an innovative strokes grouping process that handles lines and curves separately. The grouped strokes are fitted with 2D geometry and further tidied-up with endpoint clustering and parallelism correction. Finally, the in-context interpretation is applied to detect incorrect stroke interpretation based on geometry constraints and to suggest a most plausible correction based on the overall sketch context. The interpretation ensures sketched strokes to be interpreted into meaningful output. The interface overcomes the limitation where only a single line drawing can be sketched out as in most existing sketching programs, meanwhile is more intuitive to the user. |
Rights: | © Václav Skala - UNION Agency |
Appears in Collections: | WSCG '2006: Full Papers Proceedings |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/6646
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