Hi,
Does anyone know what calculations should be used to minimize an energy functional (level set and active contour method):
(I)
According to Chunming Li and Chenyang Xu "Distance Regularized Level Set Evolution and Its Application to Image Segmentation" this energy functional can be minimized by solving the gradient flow equation:
(II)
But how to obtain (II) from (I) ?
Where:
is a Dirac delta function
is a Heavside function
Thanks