DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ahn, Woojin | ko |
dc.contributor.author | Lee, Doo Yong | ko |
dc.date.accessioned | 2013-03-11T09:06:31Z | - |
dc.date.available | 2013-03-11T09:06:31Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011-04 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, v.17, no.4, pp.515 - 526 | - |
dc.identifier.issn | 1077-2626 | - |
dc.identifier.uri | http://hdl.handle.net/10203/98882 | - |
dc.description.abstract | This paper presents a method of self-intersection detection and resolution for dynamic cylindrical-lattice-based free-form deformation (FFD). The lattice-based approach allows efficient computation of deformation of complex geometries. But excessive deformation can cause visual anomalies such as surface infiltration and distortion. This paper derives a geometrically intuitive sufficient condition to guarantee that the FFD function is a homeomorphism and there is no self-intersection. The FFD function is defined by linear and quadratic B-Spline functions with the control points of the cylindrical lattice cell. The sufficient condition is satisfied if each trilinear function of the nine prism-shaped pentahedrons derived from the cell has a positive Jacobian determinant. The positivity is satisfied if the 12 tetrahedrons derived from the pentahedron have positive volumes. Based on the sufficient condition, the proposed method converts the self-intersection problem into a point-face collision detection and response problem suitable for dynamic simulation. The efficiency and accuracy of the self-intersection detection algorithm is analyzed and compared with a previous method. The results show that the proposed technique allows simulation of excessive deformation of tubular objects in an efficient and realistic manner. | - |
dc.language | English | - |
dc.publisher | IEEE COMPUTER SOC | - |
dc.subject | COLLISION DETECTION | - |
dc.subject | ANIMATION | - |
dc.subject | MODELS | - |
dc.subject | SIMULATION | - |
dc.title | Real-Time Resolution of Self-Intersection in Dynamic Cylindrical Free-Form Deformation | - |
dc.type | Article | - |
dc.identifier.wosid | 000287199600010 | - |
dc.identifier.scopusid | 2-s2.0-79951948380 | - |
dc.type.rims | ART | - |
dc.citation.volume | 17 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 515 | - |
dc.citation.endingpage | 526 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS | - |
dc.contributor.localauthor | Lee, Doo Yong | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Free-form deformation | - |
dc.subject.keywordAuthor | self-intersection | - |
dc.subject.keywordAuthor | collision | - |
dc.subject.keywordAuthor | simulation | - |
dc.subject.keywordPlus | COLLISION DETECTION | - |
dc.subject.keywordPlus | ANIMATION | - |
dc.subject.keywordPlus | MODELS | - |
dc.subject.keywordPlus | SIMULATION | - |
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