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Semiautomatic Detection of Scoliotic Rib Borders From Posteroanterior Chest Radiographs

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Academic year: 2021

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Figure

Fig.  2.    An  illustration  of  the  required  four  user  inputs  per  rib  (p ib , p ob , p ie ,  p oe )
Fig.  4.    Anisotropic  filter  h(s)  used  in  oriented  filtering  step.  (a)  Unrotated  1D  version
Fig.  7.    Multiple-path  branching,  in  which  visited  image  pixels  become  vertices  in  a  tree  graph
Fig.  8.    Oriented  filtering  and  partial  angular  projection  (PAP).  (a)  Edge- Edge-following  has  already  progressed  and  is  now  located  at  an  ambiguous pixel  (larger  white  dot)  with  current  edge-followed  orientation  θ f
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