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Point scatterer enhancement in ultrasound by wavelet coefficient shrinkage

Hverven, Stine Myhre; Rindal, Ole Marius Hoel; Hunter, Alan J.; Austeng, Andreas
Journal article; PublishedVersion; Peer reviewed
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Point+scatterer ... hrinkage_IEEEpublished.pdf (1.472Mb)
Year
2017
Permanent link
http://urn.nb.no/URN:NBN:no-68229

CRIStin
1513950

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Appears in the following Collection
  • Institutt for informatikk [3583]
  • CRIStin høstingsarkiv [15063]
Original version
Proceedings - IEEE Ultrasonics Symposium. 2017, 2017, 1-4, DOI: http://dx.doi.org/10.1109/ULTSYM.2017.8092971
Abstract
Background speckle can often obscure objects of interest in an ultrasound image. The probability of detection and classification of point scatterers is highly affected by background speckle. The proposed algorithm uses a coherence-based wavelet coefficient shrinkage method. Point scatterers in the ultrasound image are enhanced by separating coherent point targets from incoherent background speckle. Results using Field II ultrasound simulations show how the algorithm retains the point scatterers and increases their conspicuity. The algorithm has potential to detect microcalcifications in breast tissue.
 
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