Journal of Japan Society for Fuzzy Theory and Intelligent Informatics
Online ISSN : 1881-7203
Print ISSN : 1347-7986
ISSN-L : 1347-7986
Original Papers
Corner Gudgment in a Handwriting Input System for Elementary Geometry
Ryoji FUKUDAMasato KOJO
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2014 Volume 26 Issue 4 Pages 752-761

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Abstract

Free-hand drawing of graphical elements using the mouse is one of most user-friendly methods. In non-visual communication, graphical elements can be easily expressed using tactile communication tools; however, these methods are not competent in expressing properties and relations of graphical contents in elementary geometry. Graphical elements are most optimally recognized using inputted hand-written curves. Corner detection is a complex technique, which serves an important role in these recognitions. We describe recognition aspects in inputted graphical contents of elementary geometry, and improve the break-bend judgment using Choquet's integral like evaluation functions and generic algorithms. Our learning method and the corresponding normalization method are made universal, and can be applied to other problems.

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© 2014 Japan Society for Fuzzy Theory and Intelligent Informatics
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