کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4637905 1631989 2016 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modified Jacobi–Bernstein basis transformation and its application to multi-degree reduction of Bézier curves
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Modified Jacobi–Bernstein basis transformation and its application to multi-degree reduction of Bézier curves
چکیده انگلیسی


• We establish and prove the basis transformation between the modified Jacobi polynomials (MJPs) and Bernstein polynomials and vice versa.
• This transformation is merging the perfect Least-square performance of the MJPs with the geometrical insight of the Bernstein form.
• The MJPs with indexes corresponding to the number of endpoint constraints are the natural basis functions for Least-square approximation of Bezier curves.
• Several numerical results are considered.

This paper reports new modified Jacobi polynomials (MJPs). We derive the basis transformation between MJPs and Bernstein polynomials and vice versa. This transformation is merging the perfect Least-square performance of the new polynomials together with the geometrical insight of Bernstein polynomials. The MJPs with indexes corresponding to the number of endpoints constraints are the natural basis functions for Least-square approximation of Bézier curves. Using MJPs leads us to deal with the constrained Jacobi polynomials and the unconstrained Jacobi polynomials as orthogonal polynomials. The MJPs are automatically satisfying the homogeneous boundary conditions. Thereby, the main advantage of using MJPs, in multi-degree reduction of Bézier curves on computer aided geometric design (CAGD), is that the constraints in CAGD are also satisfied and that decreases the steps of multi-degree reduction algorithm. Several numerical results for the multi-degree reduction of Bézier curves on CAGD are given.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 302, 15 August 2016, Pages 369–384
نویسندگان
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