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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1109/TVCG.2014.2346412
|2 doi
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|a eng
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| 100 |
1 |
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|a Ju, Tao
|e verfasserin
|4 aut
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| 245 |
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|a A Robust Parity Test for Extracting Parallel Vectors in 3D
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|c 2014
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 08.12.2015
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|a Date Revised 11.09.2015
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Parallel vectors (PV), the loci where two vector fields are parallel, are commonly used to represent curvilinear features in 3D for data visualization. Methods for extracting PV usually operate on a 3D grid and start with detecting seed points on a cell face. We propose, to the best of our knowledge, the first provably correct test that determines the parity of the number of PV points on a cell face. The test only needs to sample along the face boundary and works for any choice of the two vector fields. A discretization of the test is described, validated, and compared with existing tests that are also based on boundary sampling. The test can guide PV-extraction algorithms to ensure closed curves wherever the input fields are continuous, which we exemplify in extracting ridges and valleys of scalar functions
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
1 |
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|a Cheng, Minxin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Duan, Ye
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g 20(2014), 12 vom: 26. Dez., Seite 2526-34
|w (DE-627)NLM098269445
|x 1941-0506
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| 773 |
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|g volume:20
|g year:2014
|g number:12
|g day:26
|g month:12
|g pages:2526-34
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|u http://dx.doi.org/10.1109/TVCG.2014.2346412
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