B-Spline Based 3D Recnstruction of Spatial Free-Form Curve基于B样条的空间自由曲线三维重建三维重建空间自由曲线B样条计算机图形学CAD2 B样条曲线的仿射不变性透视不变性是三维重建基元的必要条件 ,例如直线的透视投影还是直线 ,二次曲线的透视投影仍然是二次曲线 .在一些应用场合中 ,相机投影过程可简化为仿射投影...
B-spline 和正则化算法的低轨卫星轨道平滑 柳响林,PaveiDtmar DeiftInsttuteofEarthObservatonandSpaceSystems(DEOS)FacuityofAerospaceEngneerng,DeiftUnverstyofTechnoiogy Kiuyverwegl,2629HSDeift,TheNetheriands 摘要本文提出了一个利用纯几何轨道和力模型的新算法来计算精确且相对平滑的卫星轨道.该法将一个纯几 ...
This paper is concerned with the 3D reconstruction of coronary artery's skeleton from two single plane X-ray angiograms based on B-spline. Uniform three-order B-spline curve is used for fitting the vessel centerline, applying 'iterative nearest point algorithm'. We optimize 3D B-spline control...
Experi m ental results show thatthe m ethod is robust tois very high.Key words: im age signal processing; noise candidates identify;B 2 Spline interpo lation; adap tive deno ising; robustnessthe noise level, and outperfo rmsfiltering 2 based deno ising algo rithm s, especially w hen the...
Practical, Theoretical or Mathematical/ electric current microwave field effect transistors MOSFET semiconductor device models silicon-on-insulator splines (mathematics) transient analysis/ B-spline based large-signal DC/microwave model SOI MOSFETs large-signal model small-signal model nonquasi-static model ...
初始化了b-spline之后,怎么根据观测优化控制点 Fitting B-spline curves to point clouds by curvature-based squared distance minimization。这个论文里面告诉我们,怎么选初始控制点,怎么确定点到曲线的误差,怎么优化控制点。这个代码是开源的,但是抗噪性比较差,需要自己改一些代码 有时候观测会有一些噪声,这个论文提供...
In order to handling unknown factors in the navigation, such as disturbance and nonlinear dynamics, a B-spline fuzzy networks (BSFN) approximation-based computed-torque controller is proposed. The BSFN weights are tuned on-line. The stability of the overall closed-loop system, composed by the ...
cppbspline UpdatedJan 23, 2025 C++ Official repository of SFUISE, a novel continuous-time UWB-inertial state estimation framework based on sliding-window spline fusion. realtimesplinesslamuwbodometryultra-widebandros2bsplinesensorfusioncontinuous-timestateestimationuwb-localizationuwb-imu ...
图一FAUST测试数据集的三个示例,每个节点都有SplineCNN预测的测地误差。 我们展示最好的(左),中位数(中)和最差的(右)测试示例,按平均测地误差排序 Abstract We present Spline-based Convolutional Neural Networks (SplineCNNs), a variant of deep neural networks for irregular structured and geometric input...
The Simulation and Implementation of Metal' s p T Curve Based on B Spline YANG Chun 1 , LI Ai 2 (1.College of Mathematics and Sof tware Science , Sichuan Normal University , Chengdu 610066, Sichuan ; 2.College of Computer Science, Sichuan Normal University , Chengdu 610066, Sichuan) ...