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<DIV>Hi </DIV>
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<DIV>I want to know exactely the level-set formulation used by ITK and especially by the algorithm itkSegmentationLevelSetFunction. On the other hand, I need to know the mathematical expression of P(x) (propagation or speed term) and Z(x) (curvature term) used by itkSegmentationLevelSetFunction. and what is the major difference between P(x) and Z(x).</DIV>
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<DIV>I found in this expression :</DIV>
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<DIV>\f$\phi_{t} + \alpha \stackrel{\rightharpoonup}{A}(\mathbf{x})\cdot\nabla\phi + </DIV>
<DIV>\beta P(\mathbf{x})\mid\nabla\phi\mid = \gamma Z(\mathbf{x})\kappa\mid\nabla\phi\mid\f$</DIV>
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<DIV> but what is the exression of each term ? </DIV>
<DIV><U>Another question please:</U></DIV>
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<DIV>It is possible to integrate the laplacian filter into the ShapeDetectionLevelSetImageFilter algorithm or GeodesicActiveContourLevelSetImageFilter. Because here the expression of P(x) and Z(x) are simply and are equally to g(x) (P=Z=g). So the level-set equation become more easy.</DIV>
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<DIV>Thanks a lot</DIV>
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<DIV>sami</DIV><br /><hr />Découvrez Windows Live Spaces et créez votre site Web perso en quelques clics ! <a href='http://spaces.live.com/signup.aspx' target='_new'>Essayez !</a></body>
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