SELF-INTERSECTION

作品数：8被引量：3H指数：1
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Deforming generalized cylinders without self-intersection by means of a parametric center curve
《Computational Visual Media》2018年第4期305-321,共17页Ruibin Ma Qingyu Zhao Rui Wang James Damon Julian Rosenman Stephen Pizer 
supported by National Institutes of Health grant R01 CA158925
Large-scale deformations of a tubular object, or generalized cylinder, are often defined by a target shape for its center curve, typically using a parametric target curve. This task is non-trivial for free-form deform...
关键词：generalized CYLINDER DEFORMATION SKELETON SELF-INTERSECTION 
Three-dimensional deformation in curl vector field
《Journal of Zhejiang University-Science C(Computers and Electronics)》2012年第8期565-572,共8页Dan ZENG Da-yue ZHENG 
Project (Nos. 40905013 and 60832003) supported by the National Natural Science Foundation of China;the Shanghai Natural Science Foundation (No. 11ZR1413400);the Key Scientific Research Project of the Shanghai Education Committee (No. 12YZ007);the Open Project Program of the State Key Lab of CAD&CG,Zhejiang University (No. A1101),China
Deformation is an important research topic in graphics.There are two key issues in mesh deformation:(1) selfintersection and(2) volume preserving.In this paper,we present a new method to construct a vector field for v...
关键词：3D mesh deformation Curl vector field. Volume loreservin~ SELF-INTERSECTION 
Automatic Cage Building with Quadric Error Metrics被引量：2
《Journal of Computer Science & Technology》2011年第3期538-547,共10页邓正杰 罗笑南 苗晓萍 
Supported by the NSFC-Guangdong Joint Fund under Grant Nos. U0735001,U0835004,U0935004;the National Basic Research 973 Program of China under Grant No. 2011CB302204
Modern computer graphics applications usually require high resolution object models for realistic rendering. However, it is expensive and difficult to deform such models in real time. In order to reduce the computatio...
关键词：CAGE quadric error metrics mesh simplification SELF-INTERSECTION DEFORMATION 
Trimming self-intersections in swept volume solid modeling被引量：1
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2008年第4期470-480,共11页Zhi-qi XU Xiu-zi YE Zhi-yang CHEN Yin ZHANG San-yuan ZHANG 
Project supported by the National Natural Science Foundation of China (No. 60473106);the Hi-Tech Research and Development Program (863) of China (Nos. 2007AA01Z311 and 2007AA04Z1A5);the National Research Foundation for the Doctoral Program of Higher Education of China (No. 20060335114)
Swept volume solid modeling has been applied to many areas such as NC machining simulation and verification, robot workspace analysis, collision detection, and CAD. But self-intersections continue to be a challenging ...
关键词：SELF-INTERSECTION Swept volume （SV） Solid modeling 
A method of dealing polygon’s self-intersection contour in SLA
《Journal of Harbin Institute of Technology(New Series)》2007年第2期163-165,共3页高永强 莫健华 董树槐 
The contour of the slices of SLA parts is composed of a great deal of small lines. When offsetting the contour to compensate for the radius of laser spot, many self-intersection contours come into being, which decreas...
关键词：SLA oolwon laser soot comoensation SELF-INTERSECTION 
Homology classes that can be represented by embedded spheres in rational surfaces
《Science China Mathematics》2004年第3期431-439,共9页GAO Hongzhu GUO Ren Department of Mathematics,Beijing Normal University, Beijing 100875,China 
The problem of embedding spheres in rational surfaces CP 2#n $\overline {CP} $ 2 is studied. For homology classes u = (b 1 + k, b 2,...,b n) with positive self-intersection numbers, a necessary and sufficient conditio...
关键词：four manifold embedded sphere self-intersection number 
Self-intersection local time and Hausdorff and packing dimension of k multiple point and k multiple time sets for multi-parameter generalized Wiener processes
《Progress in Natural Science:Materials International》1998年第5期108-111,共4页徐赐文 闫海峰 
Project supported by the Postdoctoral Foundation of China.
The self-intersection local time of the multi-parameter generalized Wiener processes was studied. Then the lower bound of Hausdorff measure and the Hausdorff dimension and packing dimension of k multiple time sets, th...
关键词：GENERALIZED Wiener processes SELF-INTERSECTION local TIME MULTIPLE points HAUSDORFF DIMENSION packing dimension. 
SELF-INTERSECTIONS OF BROWNIAN MOTIONON THE SIERPRISKI GASKET
《Acta Mathematica Scientia》1997年第3期353-360,共8页魏文展 吴军 
Let {X(t),t greater than or equal to 0} be Brownian motion on the Sierpinski gasket, E is a compact subset of [0,+infinity). In this paper, we determine when X(E) has k-multiple points and when not. We also obtain the...
关键词：Brownian motion on the Sierpinski gasket k-multiple points k-multiple times 
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