[Insight-users] The Insight Journal-New Submission

[Insight Journal]

Hello,
A new submission has been added to the Insight Journal.

Title: level set segmentation using coupled active surfaces
Author(s):mosaliganti k., smith b., gelas a., gouaillard a., megason s.
Abstract: 
An Insight Toolkit (ITK) processing framework for simultaneous segmentation of multiple objects using 
active contours without edges is presented in this paper. These techniques are also popularly referred to 
as multiphase methods. Earlier, we had an implemented the Chan and Vese [1] algorithm that uses level- 
sets to accomplish region segmentation in images with poor or no gradient information. The current 
work extends that submission to use multiple level sets that evolve concurrently. The basic idea is to 
partion the image into several sets of piecewise constant intensity regions. This work is in contrast to 
the level-set methods currently available in ITK which necessarily require gradient information and also 
necessarily segment a single object-of-interest. Similar to those methods, the methods presented in this 
paper are also made efficient using a sparse implementation strategy that solves the contour evolution 
PDE at the level-set boundary. This work does not introduce any new filter but extends the earlier 
submitted to filters to process multiple objects. We include 2D/3D example code, parameter settings and 
show the results generated on a 2D cardiac image.

Download and Review the paper at: http://www.insight-journal.com/browse/publication/323

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