Advances in Computer Graphics and Computer Vision
408 p.
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| Format: | Book |
| Language: | English |
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Springer
2017
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| Online Access: | http://repository.vnu.edu.vn/handle/VNU_123/24136 |
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| Institution: | Vietnam National University, Hanoi |
| Language: | English |
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oai:112.137.131.14:VNU_123-241362020-07-14T03:51:15Z Advances in Computer Graphics and Computer Vision Braz, José Ranchordas, Alpesh Araújo, Helder Jorge, Joaquim Computer vision -- Congresses; Computer graphics -- Congresses; Imaging systems -- Congresses; VISIGRAPP 006 408 p. Surface editing operations commonly require geometric details of the surface to be preserved as much as possible. We argue that geometric detail is an intrinsic property of a surface and that, consequently, surface editing is best per-formed by operating over an intrinsic surface representation. This intrinsic repre-sentation could be derived from differential properties of the mesh, i.e. its Lapla-cian. The modeling process poses nonzero boundary constraints so that this idea results in a Poisson model. Different ways of representing the intrinsic geometry and the boundary constraints result in alternatives for the properties of the mod-eling system. In particular, the Laplacian is not invariant to scaling and rotations. Either the intrinsic representation is enhanced to be invariant to (linearized) trans-formations, or scaling and rotation are computed in a preprocess and are modeledas boundary constraints. Based on this representation, useful editing operations can be developed: Interactive free-form deformation in a region of interest based on the transformation of a handle, transfer and mixing of geometric detail be-tween two surfaces, and transplanting of a partial surface mesh into another sur-face. The main computation involved in all operations is the solution of a sparse linear system, which can be done at interactive rates. We demonstrate the effec-tiveness of this approach in several examples, showing that the editing operationschange the shape while respecting the structural geometric detail 2017-04-04T08:20:19Z 2017-04-04T08:20:19Z 2008 Book 978-3-540-75272-1 http://repository.vnu.edu.vn/handle/VNU_123/24136 en 405 p. application/pdf Springer |
| institution |
Vietnam National University, Hanoi |
| building |
VNU Library & Information Center |
| country |
Vietnam |
| collection |
VNU Digital Repository |
| language |
English |
| topic |
Computer vision -- Congresses; Computer graphics -- Congresses; Imaging systems -- Congresses; VISIGRAPP 006 |
| spellingShingle |
Computer vision -- Congresses; Computer graphics -- Congresses; Imaging systems -- Congresses; VISIGRAPP 006 Advances in Computer Graphics and Computer Vision |
| description |
408 p. |
| author2 |
Braz, José |
| author_facet |
Braz, José |
| format |
Book |
| title |
Advances in Computer Graphics and Computer Vision |
| title_short |
Advances in Computer Graphics and Computer Vision |
| title_full |
Advances in Computer Graphics and Computer Vision |
| title_fullStr |
Advances in Computer Graphics and Computer Vision |
| title_full_unstemmed |
Advances in Computer Graphics and Computer Vision |
| title_sort |
advances in computer graphics and computer vision |
| publisher |
Springer |
| publishDate |
2017 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/24136 |
| _version_ |
1680964082745737216 |