Curve fittingApproximation BFGS methodNonlinear least squaresOptimization methodFitting of data points by a B-spline curve is demanded in many applications in computer graphics, computer vision, CAD/CAM, and image processing. In this paper, we use approximation BFGS Methods to solve the associated ...
Summary: In this paper, B-spline curve fitting and sweep surface generation are used for the geometric design of involute gears. Tooth profiles are described by a B-spline formulation based on interpolating data points with first and second derivative constrains. Tooth surfaces are generated by ...
曲线拟合的入门,里面理论都是搭配图形和例子来讲解的,这个太重要了,因为b-spline的理论有点绕,跟我们以前学的曲线拟合的不太一样,尤其是变量和观测怎么对应起来的。适合刚刚入门的新手CS3621 Introduction to Computing with Geometry Course Notes 这各课程告诉我们什么是b-spline,b-spline的基本理论,重要的性质,一些...
0],control_points[:,1],'ro--',label='控制点')# 绘制控制点plt.plot(x_values,y_values,'b-',label='B样条拟合曲线')# 绘制B样条拟合曲线plt.title('B-spline Curve Fitting')# 添加标题plt.xlabel('X轴')# X轴标签plt.ylabel('Y轴')# Y轴标签plt.legend()# 添加图例plt.grid(...
choose the node to the B-spline curve fitting, in order to obtain reasonable node he considered the original data points that reflect the shape information, including arc length and curvature distribution of the known parameterization curve. The data set with noise is more insensitive to the...
B-spline objectspline=BSpline(knot_vector,control_points,degree)# Calculate B-spline curvespline_...
From CT to NURBS: Contour fitting with B-spline curves. Grove, Olya,Rajab, Khairan,Piegl, Les. A.,Lai-Yuen, Susana. Computer-Aided Design and Applications . 2011Grove O, Rajab K, Piegl LA, Lai-Yuen S. From CT to NURBS: contour fitting with B-spline curves. Com- put Aided Design ...
1.Two algorithms for ring artifact correction are proposed based on feature recognition andB-form of the spline curve fitting.提出了两种CT成像环状伪影校止方法:基于特征识别的校正方法和基于B样条曲线拟合的校正方法。 5)cubic B spline approximation三次B样条函数拟合 ...
1. B-spline curve fitting based on adaptive curve refinement using dominant points [J] . Hyungjun Park, Joo-Haeng Lee Computer-Aided Design . 2007,第6期 机译:基于使用优势点的自适应曲线细化的B样条曲线拟合 2. B-spline surface fitting based on adaptive knot placement using dominant columns...
1、内容简介2462、内容说明b样条曲线(B-spline curve)是指在数学的子学科数值分析里的一种特殊的表示形式。它是B-样条基曲线的线性组合。由Isaac Jacob Schoenberg创造。B-样条是贝兹曲线(又称贝塞尔曲线)的一种一般化,可以进一步推广为非均匀有理B样条(NURBS),使得我们能给更多一般的几何体建造精确的模型。术 ...