Patent ID: 8031919
Filing Date: 2011-10-04
Classification: G06K,G06T,Y10S

Abstract:
1. Method for digitally processing n-dimensional images, where n>1, in the form of a digital data array, the image containing a first object, a second object and a third object where the second object is sheet like and has a first boundary with the first object along a first side of the second object and a second boundary with the third object along a second side of the second object, the three objects being at least faintly distinguishable in the image represented by the digital data array, the method comprising providing a digital dataset representing a deformable curve or surface that in an initial state is contained in the first or the second object, providing a vector force field that for points on the deformable curve or surface constitutes a direction from the point approximately towards to the second boundary, applying the vector force field on the digital dataset for iteratively deforming the deformable curve, characterised in that the vector force field comprises a normal vector field with local vectors normal or approximately normal to the deformable curve or surface, and that the iterative deformation of the deformable curve is performed in the direction of the vector force field and convergent towards the second boundary.