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Use of phase and ce...
Use of phase and certainty information in automatic detection of stellate patterns in mammograms : IMAGE PROCESSING, PTS 1-3
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- Bornefalk, Hans (författare)
- KTH,Fysik
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(creator_code:org_t)
- BELLINGHAM : SPIE-INT SOC OPTICAL ENGINEERING, 2004
- 2004
- Engelska.
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Ingår i: MEDICAL IMAGING 2004. - BELLINGHAM : SPIE-INT SOC OPTICAL ENGINEERING. - 0819452831 ; , s. 97-107
- 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
- Detection of stellate patterns is a very important step in computer-aided detection schemes designed for mammography. We introduce a new way of finding these regions based on the use of quadrature filters. The method allows extraction of a certainty measure for each orientation estimate. This makes the method of finding the areas the spicules seem to emanate from more robust than simply basing it on the orientation estimates themselves. The local phase extracted from the filter outputs allows us to discriminate between orientation estimates from edges and dark lines from those generated by bright line structures, i.e. spicules. This makes the method more specific. We also show how the method can be modified for finding non-spiculated masses in digitized mammograms.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- CAD
- breast cancer
- spiculated lesion
- quadrature filter
- phase
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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