Specifying gestures by example
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Sketch-Based User Interface for Inputting Graphic Objects on Small Screen Devices
GREC '01 Selected Papers from the Fourth International Workshop on Graphics Recognition Algorithms and Applications
Sketch based interfaces: early processing for sketch understanding
Proceedings of the 2001 workshop on Perceptive user interfaces
An online composite graphics recognition approach based on matching of spatial relation graphs
International Journal on Document Analysis and Recognition
HMM-based efficient sketch recognition
Proceedings of the 10th international conference on Intelligent user interfaces
Informal user interface for graphical computing
ACII'05 Proceedings of the First international conference on Affective Computing and Intelligent Interaction
Affine-invariant B-spline moments for curve matching
IEEE Transactions on Image Processing
A framework for sketch-based cooperative design
CSCWD'06 Proceedings of the 10th international conference on Computer supported cooperative work in design III
Lossless data embedding in electronic inks
IEEE Transactions on Information Forensics and Security
GOAL: towards understanding of graphic objects from architectural to line drawings
GREC'09 Proceedings of the 8th international conference on Graphics recognition: achievements, challenges, and evolution
Online composite sketchy shape recognition using dynamic programming
GREC'05 Proceedings of the 6th international conference on Graphics Recognition: ten Years Review and Future Perspectives
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This paper presents a method of parameterization for online freehand drawing objects based on a piecewise cubic Bezier curve approximation. The target is to represent sketches in a compact format within a certain error tolerance with lower computation to be practically adaptable for the online graphics input. A set of user’s intended breakpoints in digital ink is firstly produced in terms of pen speed and local curvatures. Each of strokes of a skechy shape is then parameterized by the optimization of piecewise Bezier curve approximation to minimize the fitting error between stroke path and the curve. The experimental results show both effective and efficient for a wide range of drawing graphic objects.