Approximate Implicitization Using Linear Algebra
We consider a family of algorithms for approximate implicitization of rational parametric curves and surfaces. The main approximation tool in all of the approaches is the singular value decomposition, and they are therefore well suited to floating-point implementation in computer-aided geometric des...
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| Vydáno v: | Journal of Applied Mathematics Ročník 2012; číslo 2012; s. 1328 - 1352-183 |
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| Hlavní autoři: | , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
Cairo, Egypt
Hindawi Limiteds
01.01.2012
Hindawi Publishing Corporation Wiley |
| ISSN: | 1110-757X, 1687-0042 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | We consider a family of algorithms for approximate implicitization of rational parametric curves and surfaces. The main approximation tool in all of the approaches is the singular value decomposition, and they are therefore well suited to floating-point implementation in computer-aided geometric design (CAGD) systems. We unify the approaches under the names of commonly known polynomial basis functions and consider various theoretical and practical aspects of the algorithms. We offer new methods for a least squares approach to approximate implicitization using orthogonal polynomials, which tend to be faster and more numerically stable than some existing algorithms. We propose several simple propositions relating the properties of the polynomial bases to their implicit approximation properties. |
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| ISSN: | 1110-757X 1687-0042 |
| DOI: | 10.1155/2012/293746 |