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Grey Weighted Polar...
Grey Weighted Polar Distance Transform for Outlining Circular and Approximately Circular Objects
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- Norell, Kristin (författare)
- Uppsala universitet,Centrum för bildanalys,Datoriserad bildanalys
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- Lindblad, Joakim (författare)
- Uppsala universitet,Centrum för bildanalys
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- Svensson, Stina (författare)
- Uppsala universitet,Centrum för bildanalys
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(creator_code:org_t)
- 2007
- 2007
- Engelska.
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Ingår i: 14th International Conference on Image Analysis and Processing. - 0769528775 ; , s. 647-652
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We introduce the polar distance transform and the grey weighted polar distance transform for computation of minimum cost paths preferring circular shape, as well as give algorithms for implementations in a digital setting. An alternative to the polar distance transform is to transform the image to polar coordinates, and then apply a Cartesian distance transform. By using the polar distance transform, re-sampling of the image and interpolation of new pixel values are avoided. We also handle the case of grey weighted distance transform in a $5\times 5$ neighbourhood, which, to our knowledge, is new. Initial results of using the grey weighted polar distance transform to outline annual rings in images of log end faces are presented.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datorseende och robotik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Vision and Robotics (hsv//eng)
Nyckelord
- Image analysis
- Bildanalys
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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