نتایج جستجو برای: curve fitting

تعداد نتایج: 163848  

Journal: :CVGIP: Graphical Model and Image Processing 1996
Lejun Shao Hao Zhou

1. An image’s outline cannot be fitted by a single cubic Bézier curve piece if it contains corners. Corners are points In this paper, a new curve-fitting algorithm is presented. This algorithm can automatically fit a set of data points with at which the outline’s directions take a sharp turn, or the piecewise geometrically continuous (G) cubic Bézier curves. outlines have discontinuous tangent ...

2003
Christian J. Walder Brian C. Lovell

An algebraic curve is defined as the zero set of a multivariate polynomial. We consider the problem of fitting an algebraic curve to a set of vectors given an additional set of vectors labelled as interior or exterior to the curve. The problem of fitting a linear curve in this way is shown to lend itself to a support vector representation, allowing non-linear curves and high dimensional surface...

2010
Josef Stoer

Clothoids, i.e. curves Z(s) in RI whoem curvatures xes) are linear fitting functions of arclength ., have been nued for some time for curve fitting purposes in engineering applications. The first part of the paper deals with some basic interpolation problems for lothoids and studies the existence and uniqueness of their solutions. The second part discusses curve fitting problems for clothoidal ...

Journal: :Computer-Aided Design 2008
Simon Flöry Michael Hofer

When designing curves on surfaces the need arises to approximate a given noisy target shape by a smooth fitting shape. We discuss the problem of fitting a B-spline curve to a point cloud by squared distance minimization in the case that both, the point cloud and the fitting curve, are constrained to lie on a smooth manifold. The on-manifold constraint is included by using the first fundamental ...

2001
K. Tomita

The data of type Ia supernovae observed by the High-z SN Search Team and Supernova Cosmology Project are analyzed in inhomogeneous cosmological models with a local void on scales of about 200 Mpc, to derive the best-fit values of model parameters and the confidence contours. The χ fitting is found to be slightly better than that in homogeneous models. It is shown that (1) the best-fit values ar...

2009
JORGE ALMEIDA STUART MARGOLIS BENJAMIN STEINBERG MIKHAIL VOLKOV

Radicals for Fitting pseudovarieties of groups are investigated from a profinite viewpoint in order to describe Malcev products on the left by the corresponding local pseudovariety of semigroups.

2007
Nancy Milik Antonija Mitrović Vania Dimitrova Tanja Mitrović Amali Weerasinghe Amanda Nicholas Devon Barrow Jay Holland Konstantin Zakharov Moffat Mathews Nilufar Baghaei

i Chapter

2001
Steven W. Zucker

The Curve Indicator Random Field

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