Identity statement area
Reference TypeConference Paper (Conference Proceedings)
Last Update2015: (UTC)
Metadata Last Update2016: (UTC) administrator
Citation KeyFreitasMoreSilv:2015:EsAfNo
TitleEstimating affine normal vectors in discrete surfaces
Access Date2021, Dec. 01
Secondary TypeMaster's Work
Number of Files1
Size2760 KiB
Context area
Author1 Freitas, Nayane Carvalho
2 Morera, Dimas Martínez
3 Silva, Maria de Andrade Costa e
Affiliation1 Universidade Federal de Alagoas
2 Universidade Federal de Alagoas
3 Universidade Federal de Alagoas
EditorSegundo, Maurício Pamplona
Faria, Fabio Augusto
Conference NameConference on Graphics, Patterns and Images, 28 (SIBGRAPI)
Conference LocationSalvador
DateAug. 26-29, 2015
PublisherSociedade Brasileira de Computação
Publisher CityPorto Alegre
Book TitleProceedings
Tertiary TypeMaster's or Doctoral Work
History (UTC)2015-08-02 13:19:41 :: -> administrator ::
2016-06-03 21:18:38 :: administrator -> :: 2015
Content and structure area
Is the master or a copy?is the master
Content Stagecompleted
KeywordsDiscrete Surface
Triangular Bézier Patch
Affine Normal Vector
AbstractThe invariance of geometric properties is a crucial factor in many areas of Mathematics, particularly in Computer Graphics. The affine geometry has occupied a significant place in this field of application, having an intermediate position between euclidean and projective geometries. The affine geometry is a generalization of the euclidean geometry, but it is simpler than projective geometry, both from the analytical and computational point of view. It can be used to describe many common operations in Computer Graphics. However, we did not find in literature estimators for affine geometric properties in discrete surfaces. The proposal of this work is to search for affine invariants in these surfaces, beginning with an estimate of the affine normal vector. This estimate was obtained from a discrete representation of the surface using as elements pieces of paraboloids instead of planes. > SDLA > SIBGRAPI 2015 > Estimating affine normal...
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Next Higher Units8JMKD3MGPBW34M/3K24PF8
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