Patent ID: 7817832
Filing Date: 2010-10-19
Classification: A61B,G06T

Abstract:
1. A method for operating an x-ray diagnostic device comprising an x-ray source and an x-ray detector, comprising: creating a sequence comprising a plurality of low resolution images, wherein the low resolution images comprises a plurality of coordinate systems that are different from each other; performing a harmonization of the coordinate systems of the low resolution images, the harmonization, comprising: selecting an image from the low resolution images as a reference image g calculating the affine transformation T in a homogenous coordinate system consisting of an angle of rotation α i and a translation (x i , y i ) within an image plane, determining a parameter that maps the image g transferring the low resolution images to the homogenous coordinate system by the affine transformation calculating a high resolution image from the low resolution images after harmonizing the coordinate systems, wherein the harmonization of the coordinate systems is performed by an affine 2-D transformation, and wherein the sequence of the low resolution images are images of a stationery object under diagnosis and are offset or rotated relative to each other.