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AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsRenaud Maroy, Regine Trebossen, Paolo Zanotti Fregonara
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It relates to a method for segmenting images, to a method for detecting specific structures, and to a related computer device. The method for segmenting a three-dimensional image of a subject includes dividing the image into a plurality of regions, and then hierarchically merging the regions resulting from the division in order to obtain a three-dimensional image partitioned into regions of interest. The hierarchical merging includes a merging step using shape and size criteria of the regions so as to avoid merging small regions. The method for detecting specific structures in an image, for example tumors, includes a step of segmenting an image into regions of interest. The method further includes calculating, for each region of interest, a plurality of criteria, including a shape criterion, of the regions of interest in order to discriminate the specific structures to be detected from the regions of interest of the segmented image.
A method for segmenting a three-dimensional image or sequence of three-dimensional images of an object so as to obtain a three-dimensional image or sequence of images partitioned into regions of interest comprising, in the performance order of the method, the following steps:
The segmenting method according to 4claim 2, wherein the or each linkage step for the regions without shape and size criteria of the regions comprises a step for calculating a linkage cost, between a region R1 and a region R2, defined by:
A computer device for segmenting a three-dimensional image or sequence of images of an object acquired by an imaging device comprising:
Dependencies are inferred from the claim text.