The quadratic B-spline curve fitting for the shape of log cross sections

2006 ◽  
Vol 17 (2) ◽  
pp. 150-152 ◽  
Author(s):  
Hong’e Ren ◽  
Yan Wu ◽  
Xiao-ming Zhu
Keyword(s):  
Cross Sections ◽  
Curve Fitting ◽  
B Spline ◽  
Spline Curve

An additional branch free algebraic B-spline curve fitting method

2010 ◽  
Vol 26 (6-8) ◽  
pp. 801-811 ◽  
Author(s):  
Mingxiao Hu ◽  
Jieqing Feng ◽  
Jianmin Zheng
Keyword(s):  
Curve Fitting ◽  
B Spline ◽  
Spline Curve ◽  
Fitting Method ◽  
Additional Branch ◽  
Curve Fitting Method

scholarly journals A fast algorithm for cubic B-spline curve fitting

1994 ◽  
Vol 18 (3) ◽  
pp. 327-334 ◽  
Author(s):  
Kuo-Liang Chung ◽  
Wen-Ming Yan
Keyword(s):  
Curve Fitting ◽  
Fast Algorithm ◽  
B Spline ◽  
Spline Curve

scholarly journals A Novel Sky-Subtraction Method Based on Non-negative Matrix Factorisation with Sparsity for Multi-object Fibre Spectroscopy

2016 ◽  
Vol 33 ◽  
Author(s):  
Bo Zhang ◽  
Long Zhang ◽  
Zhongfu Ye
Keyword(s):  
Principal Components Analysis ◽  
Principal Components ◽  
Curve Fitting ◽  
The Other ◽  
Subtraction Method ◽  
B Spline ◽  
Spline Curve ◽  
Components Analysis ◽  
Matrix Factorisation

AbstractA novel sky-subtraction method based on non-negative matrix factorisation with sparsity is proposed in this paper. The proposed non-negative matrix factorisation with sparsity method is redesigned for sky-subtraction considering the characteristics of the skylights. It has two constraint terms, one for sparsity and the other for homogeneity. Different from the standard sky-subtraction techniques, such as the B-spline curve fitting methods and the Principal Components Analysis approaches, sky-subtraction based on non-negative matrix factorisation with sparsity method has higher accuracy and flexibility. The non-negative matrix factorisation with sparsity method has research value for the sky-subtraction on multi-object fibre spectroscopic telescope surveys. To demonstrate the effectiveness and superiority of the proposed algorithm, experiments are performed on Large Sky Area Multi-Object Fiber Spectroscopic Telescope data, as the mechanisms of the multi-object fibre spectroscopic telescopes are similar.

scholarly journals Fast Automatic Knot Placement Method for Accurate B-spline Curve Fitting

2020 ◽  
Vol 128 ◽  
pp. 102905
Author(s):  
Raine Yeh ◽  
Youssef S.G. Nashed ◽  
Tom Peterka ◽  
Xavier Tricoche
Keyword(s):  
Curve Fitting ◽  
B Spline ◽  
Spline Curve ◽  
Placement Method
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