Interactive image segmentation by precomputation
First Claim
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1. A non-transitory computer readable medium embodying instructions executable by a processor to perform a method for interactive image segmentation, the method comprising:
- receiving an image;
determining a plurality of generalized eigenvectors of the image without using seed points;
receiving a seed point for each of at least two portions of the image; and
determining a partition of the image, the determination of the partition comprising;
establishing a potential function assigning a label to each of a plurality of nodes of the image according to distances between the nodes and the seed points in a space defined by the generalized eigenvectors, wherein each of the labels correspond to one of the portions of the image; and
thresholding the potential function to produce the partition of the image.
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Abstract
A method for interactive image segmentation includes receiving an image to be segmented, performing an offline computation of eigenvectors of a Laplacian of the image without using seed points, receiving seed points, and performing an online segmentation taking the seed points and the eigenvectors of the Laplacian as input and outputting a partition of the image.
13 Citations
5 Claims
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1. A non-transitory computer readable medium embodying instructions executable by a processor to perform a method for interactive image segmentation, the method comprising:
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receiving an image; determining a plurality of generalized eigenvectors of the image without using seed points; receiving a seed point for each of at least two portions of the image; and determining a partition of the image, the determination of the partition comprising; establishing a potential function assigning a label to each of a plurality of nodes of the image according to distances between the nodes and the seed points in a space defined by the generalized eigenvectors, wherein each of the labels correspond to one of the portions of the image; and thresholding the potential function to produce the partition of the image. - View Dependent Claims (2)
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3. A non-transitory computer readable medium embodying instructions executable by a processor to perform a method for interactive image segmentation, the method comprising:
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receiving an image to be segmented; performing an offline computation of eigenvectors of a Laplacian of the image without using seed points; receiving seed points; and performing an online segmentation taking the seed points and the eigenvectors of the Laplacian as input and outputting a partition of the image, wherein performing the online segmentation comprises; determining a Normalized Cuts value based on the seed points and the eigenvectors of the Laplacian; and partitioning the image according to the Normalized Cuts value. - View Dependent Claims (4, 5)
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Specification