Results 211 to 220 of about 129,549 (262)

Fitting parametric disk curves

International Journal of Computer Mathematics, 1999
Methods for fitting parametric disk curves to a set of disks are developed.
J G Rokne
exaly   +4 more sources

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On the singularity of a class of parametric curves

Computer Aided Geometric Design, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Imre Juhasz
exaly   +3 more sources

Reconsidering algorithms for real parametric curves

Applicable Algebra in Engineering, Communications and Computing, 1995
The authors study the applicability of known algorithms for computing complex parametrizations of curves to the case of real parametrizations. Several results hold over a real curve and its complexification. For example, a real curve has a real parametrization if and only if it has genus zero.
Jaime Gutierrez, Tomáš Recio, Gutierrez Jaime   +2 more
exaly   +2 more sources

Parametric construction of characteristic curves

Fluid Phase Equilibria, 2011
International audienceA simple method is proposed for a parametric construction of characteristic curves using cubic equations of state. This method does not require the resolution of the equation of state for volume or compressibilty factor.
Dan Vladimir Nichita, Claude F Leibovici
exaly   +2 more sources

A real-time interpolator for parametric curves

International Journal of Machine Tools and Manufacture, 2018
Driven by the ever increasing need for the high-speed high-accuracy machining of freeform surfaces, the interpolators for parametric curves become highly desirable, as they can eliminate the feedrate and acceleration fluctuation due to the discontinuity ...
Wenbin Zhong, Xichun Luo, Wenlong Chang   +2 more
exaly   +2 more sources

Curve Parametrization by Moments

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2009
We present a method for deriving a parametric description of a conic section (quadratic curve) in an image from the moments of the image with respect to several specially-constructed kernel functions. In contrast to Hough-transform-type methods, the moment approach requires no large accumulator array.
Irina Popovici, William Douglas Withers
openaire   +2 more sources

On a Dyadic Parametrization of Curves

Computational Methods and Function Theory, 2004
Let \(C\) be a curve in the complex plane where \(C = \{a(t): 0 \leq t \leq 1\},\) where \(a(0) \neq a(1)\). The authors discuss a dyadic paramerization for \(C\) first introduced by the first two authors [Michigan Math. J. 41, 269-284 (1994; Zbl 0815.30010)]. Let \(z(0) = a(0)\) and \(z(1) = a(1)\) and let \(C_{1,1}\) denote the directed segment from \
Anderson, J. Milne, Lesley, F. David, Rotar, Vladimir I.   +2 more
openaire   +1 more source

Parametric curves on meshes

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia, 2005
In this paper, we propose a method for creating parametric curves on triangular meshes. A curve on a mesh is frequently used as a boundary curve of a specific region of a mesh in mesh modeling and applications such as texture mapping, remeshing or morphing.
openaire   +1 more source

Degenerate parametric curves

Computer Aided Geometric Design, 1984
A degenerate parametric polynomial curve is defined as one that (a) does not have a one-to-one correspondence between points of the curve and points in the domain or (b) has a common factor in the numerator and denominator (for rational curves). Methods are developed to detect and remove such situations, i.e. by a suitable reparametrization.
openaire   +2 more sources