B-SPLINE

作品数：246被引量：414H指数：10
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相关机构：武汉大学哈尔滨工业大学中国科学院北京理工大学更多>>
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Smooth quadrotor trajectory generation for tracking a moving target in cluttered environments被引量：3
《Science China(Information Sciences)》2021年第7期128-143,共16页Lele XI Zhihong PENG Lei JIAO Ben M.CHEN 
This work was supported by the Key Program of National Natural Science Foundation of China(NSFC)(Grant No.U1613225).
In this paper,we present a trajectory generation method of a quadrotor,based on the optimal smoothing B-spline,for tracking a moving target with consideration of relative tracking pattern or limited field of view of t...
关键词：QUADROTOR target tracking trajectory generation B-SPLINE convex optimization 
Trivariate B-spline solid construction by pillow operation and geometric iterative fitting
《Science China(Information Sciences)》2018年第11期228-230,共3页Hongwei LIN Hao HUANG Chuanfeng HU 
supported by National Natural Science Foundation of China (Grant No. 61379072)
While the traditional geometric design community focuses on the design of curves and surfaces, the advent of isogeometric analysis (IGA)[1] has made the development of methods for designing trivariate B-spline solids ...
关键词：TBS Trivariate B-spline solid construction by pillow operation and geometric iterative fitting GFD FIGURE 
B-spline surface fitting to mesh vertices被引量：2
《Science China(Information Sciences)》2017年第7期252-254,共3页Yang LU Junhai YONG Kanle SHI Hejin GU Ping ZHENG Jean-Claude PAUL 
supported by International Science & Technology Cooperation Program of China (Grant No. 2013DFE13120);The second author was supported by National Natural Science Foundation of China (Grant No. 61272235);The third author was supported by National Natural Science Foundation of China (Grant No. 91515103);The fifth author was supported by National Natural Science Foundation of China (Grant No. 61562063)
Here we propose a novel method of fitting B-spline surfaces to input mesh vertices.For a mesh model that is difficult to fit with one B-spline surface,we divide it into several patches that form a tree structure（whic...
关键词：spline fitting patches continuity hierarchical divide pixel meshes smoothness preserving 
A B-spline curve extension algorithm
《Science China(Information Sciences)》2016年第3期33-41,共9页Yang LU Kanle SHI Junhai YONG Hejin GU Haichuan SONG 
supported by International Science&Technology Cooperation Program of China(Grant No.2013DFE13120);Kanle SHI was supported by National Natural Science Foundation of China(Grant No.61272235);Open Funding Project of State Key Laboratory of Virtual Reality Technology and Systems;Beihang University(Grant No.BUAA-VR-14KF-05);Junhai YONG was supported by National Natural Science Foundation of China(Grant No.91315302);Haichuan SONG was supported by National Natural Science Foundation of China(Grant No.61173077)
B-spline curve extension is an important operation in computer aided design systems. In this paper, we present a new extension algorithm for B-spline curves. The algorithm uses curve unclamping to generate a uniform B...
关键词：curve extension B-spline/NURBS unclamping CLAMPING UNIFORM 
Almost strictly total positivity of NUAT B-spline basis
《Science China(Information Sciences)》2013年第9期46-51,共6页WEI WeiLi WANG GuoZhao 
supported by National Science Foundation of China (Grant Nos. 60933008, 61272300)
Total positivity of spline basis has been well known in the theory of computer aided geometry design, which is highly related with good shape preserving property. Almost strictly total positivity is stronger, which co...
关键词：ASTP NUAT B-spline basis knot insertion algorithm coefficient variation 
Curve fitting and optimal interpolation on CNC machines based on quadratic B-splines被引量：22
《Science China(Information Sciences)》2011年第7期1407-1418,共12页ZHANG Mei YANWei YUAN ChunMing WANG DingKang GAO XiaoShan 
supported by the Knowledge Innovation Project of Chinese Academy of Sciences (Grant No.KGCX2-YW-119-1);the National Natural Science Foundation of China (Grant No.608210021/F02)
In this paper, curve fitting of 3-D points generated by C01 codes and interpolation based on quadratic B-splines are studied. Feature points of G01 codes are selected using an adaptive method. Next, quadratic B-spline...
关键词：quadratic B-spline GO1 codes feature point velocity planning INTERPOLATION 
Adaptive recurrent-functional-link-network control for hypersonic vehicles with atmospheric disturbances被引量：9
《Science China(Information Sciences)》2011年第3期482-497,共16页DU YanLi WU QingXian JIANG ChangSheng XUE YaLi 
supported by the National Natural Science Foundation of China (Grant Nos. 90716028, 60974106)
The controller design for a near-space hypersonic vehicle （NHV） is challenging due to its plant uncertainties and sensitivity to atmospheric disturbances such as gusts and turbulence. This paper first derives 12 sta...
关键词：near-space hypersonic vehicle atmospheric disturbances nonlinear predictive control ADAPTIVECONTROL B-spline recurrent functional link network 
Degree elevation operator and geometric construction of C-B-spline curves被引量：2
《Science China(Information Sciences)》2010年第9期1753-1764,共12页ZHU Ping WANG GuoZhao YU JingJing 
supported by the the National Natural Science Foundation of China(Grant Nos.60773179,60970079,60933008);the National Youth Science Foundation of China(Grant No.60904070)
Unlike a Bezier curve, a spline curve is hard to be obtained through geometric corner cutting on control polygons because the degree elevation operator is difficult to be obtained and geometric convergence is hard to ...
关键词：C-B-spline degree elevation operator bi-order C-B-spline geometric convergence geometric construction 
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