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- W2011353123 abstract "The problem of computing the intersection of parametric and algebraic curves arises in many applications of computer graphics and geometric and solid modeling. Previous algorithms are based on techniques from elimination theory or subdivision and iteration and are typically limited to simple intersections of curves. Furthermore, algorithms based on elimination theory are restricted to low degree curves. This is mainly due to issues of efficiency and numerical stability. In this paper we use elimination theory and express the resultant of the equations of intersection as a matrix determinant. Using matrix computations the algorithm for intersection is reduced to computing eigenvalues and eigenvectors of matrices. We use techniques from linear algebra and numerical analysis to compute geometrically isolated higher order intersections of curves. Such intersections are obtained from tangential intersections, singular points, etc. The main advantage of the algorithm lies in its efficiency and robustness. The numerical accuracy of the operations is well understood and we come up with tight bounds on the errors using 64-bit IEEE floating point arithmetic." @default.
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- W2011353123 date "1995-03-01" @default.
- W2011353123 modified "2023-10-18" @default.
- W2011353123 title "Algorithms for Intersecting Parametric and Algebraic Curves II: Multiple Intersections" @default.
- W2011353123 doi "https://doi.org/10.1006/gmip.1995.1010" @default.
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