Designing solid objects using interactive sketch interpretation
I3D '92 Proceedings of the 1992 symposium on Interactive 3D graphics
Sketching as a solid modeling tool
SMA '95 Proceedings of the third ACM symposium on Solid modeling and applications
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Teddy: a sketching interface for 3D freeform design
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
SketchML a representation language for novel sketch recognition approach
Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments
A Novel Recognition Approach for Sketch-Based Interfaces
ICIAP '09 Proceedings of the 15th International Conference on Image Analysis and Processing
New grouping and fitting methods for interactive overtraced sketches
The Visual Computer: International Journal of Computer Graphics
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Freehand sketching interfaces allow the user to directly interact with tasks without worrying about low-level commands. The paper presents a method for interpreting on-line freehand sketch and describes a human-computer interface prototype system of freehand sketch recognition (FSR) that is designed to infer designers' intention and interprets the input sketch into more exact 2D geometric primitives: straight lines, polylines, circles, circular arcs, ellipses, elliptical arcs, hyperbolas and parabolas. According to whether the stroke needs to be segmented or not, it is divided into single primitives and composite primitives correspondingly. Based on open/closed characteristic and semi-invariant, conic type and category of freehand sketch were defined for subdividing conic curve. Recognition approach for composite-primitive consists of three stages. The effectiveness of the algorithm is demonstrated preliminarily by experiments.