Contour extraction method and apparatus

Details Contour extraction method and apparatus Contour extraction method and apparatus

G - Physics

06

T

G06T 7/60 (2006.01) A61B 5/055 (2006.01) A61B 6/03 (2006.01)

Patent

CA 2320375

A contour extraction method and apparatus is disclosed by which a contour can be extracted automatically at a high speed with a high degree of accuracy without the necessity to set a threshold value explicitly. In the contour extraction method and apparatus, from picture image data of a picture image including an image of a body which makes an object of contour extraction, region belonging probabilities with which individual points of the picture image belong to regions are calculated not based on values themselves of the image data but based on attributes of the points of the picture image. Then, the regions to which the individual points of the picture image belong are delimited using the region belonging probabilities, and then a boundary between the regions is extracted as a contour.

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