This Matlab program demomstrates the level set alg
2016-08-23
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In this paper, we propose a new region-based ACM, whichshares the advantages of the C–V and GAC models. We utilize thestatistical information inside and outside the contour to constructa region-based signed pressure force (SPF) function [9], which isable to control the direction of evolution, to substitute the ESF.The proposed SPF function has opposite signs around the objectboundary, so the contour can shrink when it is outside the objector expand when inside the object.We propose a novel level set method, i.e. SBGFRLS, to implementour model. It improves the traditional level set methods byavoiding the calculation of SDF and re-initialization [13]. We usea selective step, which first penalizes level set function to be binary,and then uses a Gaussian filter to regularize it. The Gaussianfilter can make the level set function smooth and the evolutionmore stable. It is worth noting that the SBGFRLS method
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