Patent ID: 9058688
Filing Date: 2015-06-16
Classification: G06T

Abstract:
1. A method for processing a sequence of a plurality of 2D projection images of an object of interest, acquired with a medical imaging system comprising a source of X-rays adapted to move around the object, the method comprising: obtaining 2D projection images of the object of interest according to a plurality of angulations at a first time when the object is without injection of a contrast product, the 2D projection images being such that R obtaining 2D projection images of the object of interest according to a plurality of angulations at a second time when the object is opacified by injection of a contrast product, the 2D projection images being such that R iteratively treating the projection images by minimizing, relative to a sequence of 3D images, the function: where Q({right arrow over (g)}) is a term of fidelity to the measurements acquired; S({right arrow over (g)})=∥Φ λ is a parameter of compressibility, wherein the minimizing solution is a set of 3D images estimated from: where {right arrow over (f)} represents the 3D image of the object at both of the first and second time.