System and method for multilabel random walker segmentation...

Details System and method for multilabel random walker segmentation... System and method for multilabel random walker segmentation...

2005-09-26

2009-02-03

Bella, Matthew C (Department: 2624)

Image analysis

Image segmentation

C382S160000

Reexamination Certificate

active

07486820

ABSTRACT:
A method of segmenting a digitized image includes providing a digitized image comprising a plurality of intensities corresponding to a domain of nodes on an N-dimensional grid, providing prior probabilities for a set of segments, and initializing probabilities that each node belongs to each segment, defining a weight between each pair of adjacent nodes in the image based on the intensity difference of each said node pair, formulating a set of equations that minimize an energy functional of the probabilities and weights, and solving said set of equations for the probability that each node belongs to each segment.

REFERENCES:
patent: 5978497 (1999-11-01), Lee et al.
patent: 6718063 (2004-04-01), Lennon et al.
patent: 6744923 (2004-06-01), Zabih et al.
patent: 2004/0008886 (2004-01-01), Boykov
patent: 2004/0086185 (2004-05-01), Sun
“Multi-label Image Segmentation for Medical Applications Based on Graph-Theoretic Electrical Potentials”, Leo Grady and Gareth Funka-Lea, CVAMIA-MMBIA 2004, LNCS 3117, pp. 230-245, 2004.

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