Adaptation of potential terms in real-time optimal path...

Details Adaptation of potential terms in real-time optimal path... Adaptation of potential terms in real-time optimal path...

2008-09-09

2008-09-09

Mehta, Bhavesh (Department: 2624)

Image analysis

Image segmentation

C382S171000

Reexamination Certificate

active

10480659

ABSTRACT:
The invention relates to a method for segmenting an image [IM] by path extraction using minimization of at least a potential [POT], said potential being calculated [CAS] from a feature [FEA] of the image [IM] using a cost assignment function [CAF], said calculation [CAS] being realized using the definition of two groups of points [NP and PP] in a neighborhood of a drawn [DRW] contour: the ones that are considered to be relevant to a boundary, called positive points [PP] and the ones that are not considered to be relevant to said boundary, called negative points [NP]. A refined characterization of positive points is constructed by combining characterizations of positive and negative points and the cost assignment function [CAF] is modified [CAL] using this refined characterization. The invention proposes also a fully automatic simultaneous adaptation of the different cost assignment functions of the individual potentials in a total function of potentials, and their relative weightings.

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