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Discrete 3D tools a...
Discrete 3D tools applied to 2D grey-level images
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- Sanniti di Baja, Gabriella (författare)
- Uppsala universitet,Datoriserad bildanalys
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- Nyström, Ingela (författare)
- Uppsala universitet,Centrum för bildanalys,Datoriserad bildanalys
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- Borgefors, Gunilla (författare)
- Uppsala universitet,Centrum för bildanalys,Datoriserad bildanalys
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(creator_code:org_t)
- 2005
- 2005
- Engelska.
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Ingår i: Image Analysis and Processing - ICIAP 2005. - 3540288694 ; , s. 229-236
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- 2D grey-level images are interpreted as 3D binary images, where the grey-level plays the role of the third coordinate. In this way, algorithms devised for 3D binary images can be used to analyse 2D grey-level images. Here, we present three such algorithms. The first algorithm smoothes a 2D grey-level image by flattening its geometrical and grey-level peaks while simultaneously filling in geometrical and grey-level valleys, regarded as non significant in the problem domain. The second algorithm computes an approximation of the convex hull of a 2D grey-level object, by building a covering polyhedron closely fitting the corresponding object in a 3D binary image. The result obtained is convex both from the geometrical point of view and as concerns grey-levels. The third algorithm skeletonizes a 2D grey-level object by skeletonizing the top surface of the object in the corresponding 3D binary image.
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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