A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 6/03 (2006.01) A61B 6/00 (2006.01) G06T 1/00 (2006.01)
Patent
CA 2732647
[Objective] To improve detection performance of target tissues foamed by linear structures within three dimensional images. [Constitution] The directions of principal axes of target tissues formed by linear structures or the directions of lines normal to tissues formed by planar structures within detection regions are calculated. Normalization processes are administered with respect to candidate target regions that include candidate target tissues based on the directions of the principal axes or the directions of the normal lines. Features of the normalized candidate target regions are calculated, and judgments are performed regarding whether the target tissues are included in the candidate target regions, employing the calculated features.
Selon l'invention, une amélioration de l'efficacité de détection d'un tissu objet configuré à partir d'une structure linéaire dans une image tridimensionnelle a été obtenue. La direction de l'axe principal d'un tissu candidat objet configuré à partir d'une structure linéaire ou la direction normale du tissu configuré à partir d'une structure plane dans une région de détection est calculée, une région candidate objet comprenant le tissu candidat objet est soumise à un traitement de normalisation sur la base de la direction d'axe principal ou de la direction normale, la valeur caractéristique de la région candidate objet soumise au traitement de normalisation est calculée, et il est déterminé, à l'aide de la valeur caractéristique calculée, si le tissu objet est compris ou non dans la région candidate objet.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Fujifilm Corporation
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