Patent ID: 8922552
Filing Date: 2014-12-30
Classification: G06T

Abstract:
1. An image data processing method of automatic adaptation of 3-D surface model to image features, for model-based image segmentation, the method comprising: creating a deformable tubular mesh model for fitting a 3-D path based on a centerline of a 3-D tubular object of interest, the 3-D path comprising a set of ordered points defining a plurality of path segments, the mesh model having an initial radius and comprising a plurality of mesh segments corresponding to the plurality of path segments; determining, for each mesh segment, a value that is a product of the initial radius and a local curvature of the corresponding path segment; and automatically adapting a length of a mesh radius for each mesh segment having the value greater than one, by applying a shrinking factor to the initial radius, wherein the shrinking factor is a constant value for each of the mesh segments to be adapted, the constant value being less than one and based on the initial radius and the radius of local curvature of the corresponding path segment, wherein automatically adapting the mesh radius comprises,