Approximating online handwritten image by B้zier curve

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Publication Details

Author list: Nuntawisuttiwong T., Dejdumrong N.

Publisher: Hindawi

Publication year: 2012

Start page: 17

End page: 22

Number of pages: 6

ISBN: 9780769547787

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868242259&doi=10.1109%2fCGIV.2012.24&partnerID=40&md5=b30eec341dcbbf9932612f874d54ca41

Languages: English-Great Britain (EN-GB)

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Abstract

In this paper, a B้zier curve is construct to represent a hand-drawn image, expressed in the forms of a set of consecutive dots. Using input's sampling points, an online handwritten curve is converted into a vectored curve by Newton-Lagrange interpolation. Although Newton-Lagrange curve can be used well in the approximation of the handwritten curve, their polynomials are not appropriate in the applications of computer aided geometric design (CAGD). Therefore, Newton-Lagrange curve will then be converted into a corresponding B้zier curve. Ultimately, the final result from the conversion can be expressed in the forms of the B้zier control points. As a result, these B้zier curve represents the given handwritten curve image. ฉ 2012 IEEE.

Keywords

B้zier Curve, Lagrange Polynomial, Monomial Matrix, Newton Polynomial