منابع مشابه
A trust region algorithm for parametric curve and surface fitting
Let a family of curves or surfaces be given in parametric form via the model equation x =J‘(s, /I), where x E R”, p E KY’, and s E S c [wd. d < n. We present an algorithm for solving the problem: Find a shape cec’tor p* such that the manlfold M* = (f(s, /I*): s E S) is a best fir to scattered data :z, j ,‘= , c R” in the Sense that, jbr some is* )y=, , the sum of the squared least distances )-y...
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Many applications of geometry processing and computer vision rely on geometric properties of curves, particularly their curvature. Several methods have already been proposed to estimate the curvature of a planar curve, most of them for curves in digital spaces. This work proposes a new scheme for estimating curvature and torsion of planar and spatial curves, based on weighted least–squares fitt...
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ژورنال
عنوان ژورنال: The Computer Journal
سال: 1971
ISSN: 0010-4620,1460-2067
DOI: 10.1093/comjnl/14.2.169