Segmentation of structures based on curvature slope
First Claim
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1. A method for segmentation of structures in an image based on curvature slope, the method comprising:
- detecting edges within a volume of interest (VOI);
computing curvatures, using a processor, for surface voxels corresponding to the edges;
computing average curvatures within concentric rings having equal geodesic distances;
computing a curvature slope based on the average curvatures from a central ring to a peripheral ring;
discarding voxels having a curvature slope not satisfying specifications; and
locating connected clusters of retained voxels.
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Abstract
A system and method for segmentation of structures in an image based on curvature slope are provided, the system including a processor, a curvature slope unit in signal communication with the processor for computing curvature slopes in the image and discarding voxels having a slope not satisfying specifications, and a segmentation unit in signal communication with the processor for locating connected clusters of retained voxels; and the method including computing curvature slopes in the image, discarding voxels having a slope not satisfying specifications, and locating connected clusters of retained voxels.
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Citations
20 Claims
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1. A method for segmentation of structures in an image based on curvature slope, the method comprising:
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detecting edges within a volume of interest (VOI); computing curvatures, using a processor, for surface voxels corresponding to the edges; computing average curvatures within concentric rings having equal geodesic distances; computing a curvature slope based on the average curvatures from a central ring to a peripheral ring; discarding voxels having a curvature slope not satisfying specifications; and locating connected clusters of retained voxels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for segmentation of structures in an image based on curvature slope, the system comprising:
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a processor, wherein the processor performs the steps of; detecting edges within a volume of interest (VOI); computing curvatures for surface voxels corresponding to the edges; computing average curvatures within concentric rings having equal deodesic distances; computing a curvature slope based on the average curvatures from a central ring to a peripheral ring; a curvature slope unit in signal communication with the processor for computing curvature slopes in the image and discarding voxels having a slope not satisfying specifications; and a segmentation unit in signal communication with the processor for locating connected clusters of retained voxels. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer readable medium storing a computer program to perform program steps for segmentation of structures in an image based on curvature slope, the program steps comprising:
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detecting edges within a volume of interest (VOI); computing curvatures for surface voxels corresponding to the edges; computing average curvatures within concentric rings having equal geodesic distances; computing a curvature slope based on the average curvatures from a central ring to a peripheral ring; discarding voxels having a curvature slope not satisfying specifications; and locating connected clusters of retained voxels. - View Dependent Claims (20)
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Specification