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In this paper, we introduce a graph cut based active surface model that incorporates graph cuts optimization tools with implicit surface representation to solve the segmentation problem. We will introduce a discrete formulation of the surface evolution problem, prove that the discrete energy function is graph representable and propose how to optimize it using graph cuts. The advantage of this model...
Brain extraction refers to stripping the skull and removing any non brain tissue such as fat, bone and eye balls from the MRI of the head. Brain extraction is an extremely important preliminary step before any brain analysis algorithm. This paper proposes a novel algorithm for the extracting the brain tissue using a graph cuts based active contour model. The model combines the implicit curve evolution...
The paper presents a graph cut based active contour without edges segmentation model to track pedestrian in thermal images. The deformable model is based on the Mumford- Shah piecewise constant energy formulation. However, the model presented here relaxes the global homogeneity assumption of the Mumford- Shah functional. A discrete energy formulation is presented and the optimization is performed...
This paper presents a novel graph cut based segmentation approach with shape priors. The model incorporates statistical shape prior information with the active contour without edges model . Our model also relaxes the homogeneity constraint that assumes that the image is modeled by a piecewise constant approximation. The major contribution of this paper is to present a graph cut optimization for the...
Minicolumnar disturbance is a common feature to both dyslexic and autistic brains. This paper is motivated by the persistent need to investigate the effect of minicolumnar disturbance on the magnetic resonance images of the brain. This will serve as a preliminary step to develop a non-invasive methodology to discriminate between the diseases based on the MRI findings. In this paper, we investigate...
The minicolumn is generally considered the basic unit of the neocortex in all the mammalian brains. Enlargement of the cortical surface is believed to occur through the addition of minicolumns rather than a single neuron. This study aims at testing the hypothesis that brain developmental disorders can be diagnosed and analyzed in terms of the minicolumnar disturbance. To do this, we propose to correlate...
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