Method and system for using cutting planes for colon polyp...

Details Method and system for using cutting planes for colon polyp... Method and system for using cutting planes for colon polyp...

G - Physics

06

T

G06T 7/00 (2006.01)

Patent

CA 2535404

A method of identifying a polyp in a digital image of a colon, wherein said image comprises a plurality of intensities corresponding to a domain of voxels in a 3 dimensional space, is provided. The method includes providing the image with a set of 3 mutually orthogonal axes, providing a plurality of cutting planes each at a different orientation with respect to the image axes, centering (101), for each voxel in the image, each of the cutting planes about a central voxel, determining, for each of the plurality of cutting planes about each voxel in the image, an intersection of the cutting plane with the colon, and examining (102) a trace of the cutting plane within said intersection, and marking (103), where the trace of each cutting plane is small and round, those voxels in the intersection for further analysis.

Cette invention se rapporte à un procédé permettant d'identifier un polype dans une image numérique du côlon, cette image comportant plusieurs intensités correspondant à un domaine de voxels dans un espace tridimensionnel. Ce procédé consiste à placer sur l'image un groupe de trois axes perpendiculaires entre eux, à former plusieurs plans de coupe chacun avec une orientation différente par rapport aux axes de l'image, à centrer (101), pour chaque voxel dans l'image, chacun des plans de coupe autour d'un voxel central, à déterminer, pour chacun des plans de coupe autour de chaque voxel dans l'image, une intersection entre le plan de coupe et le côlon, et à examiner (102) une trace du plan de coupe dans cette intersection, puis à marquer (103), à l'endroit où la trace de chaque plan de coupe est petite et ronde, les voxels se trouvant à cette intersection, en vue d'une analyse ultérieure.

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