Method to correct the registration of radiography images

A method for correcting registration of radiology images, the method comprising:

• emitting X-rays onto a body to project the X-rays with a given incidence on a detector of a medical system, wherein the X-rays are revealed by a projected 2D image having projection pixels;
• acquiring a 3D image of the body using said medical system;
• determining an acquisition geometry of the X-ray medical system by computing an initial projection matrix,
• performing a projection of the 3D image from the determined initial projection matrix;
• making a registration based on a content of the image of the projection of the 3D image with the radiography image from the information contained in these images,
• computing a new projection matrix by combining the initial projection matrix with the registration based on the content of the 3D image;
• and
• projecting the 3D image on a radiography image as a function of the new projection matrix.