Optical recovery of radiographic geometry

Computer-executable process steps stored on a computer-readable medium, said computer-executable process steps for processing one or more of radiographic images of a subject, said computer-executable process steps executable to perform a method comprising the steps of:

• capturing at least two visible light images of the subject in correspondence to each radiographic image obtained from a radiographic source, the at least two visible light images being captured by one or more visible light cameras;
• obtaining a geometric relation between the radiographic source and the visible light cameras at the time when the visible light images were captured;
• calculating radiographic geometry of each radiographic image relative to the radiographic source and the subject, wherein said calculation step comprises stereoscopic analysis of the at least two visible light images to determine relative positioning of the visible light cameras and the subject, and calculation of the radiographic geometry from the relative positioning and from the geometric relation between the radiographic source and the visible light cameras;
• and
• generating three-dimensional radiographic information on the subject by processing the one or more radiographic images based on the radiographic geometry calculated in said calculating step.

A computer-readable medium that stores computer-executable process steps, the computer-executable process steps for processing plural radiographic images of a subject, the computer-executable process steps executable to perform a method comprising the steps of:

• capturing at least two visible light images of the subject in correspondence to each radiographic image obtained from a radiographic source, the at least two visible light images being captured by one or more visible light cameras;
• obtaining a geometric relation between the radiographic source and the visible light cameras at the time when the visible light images were captured;
• calculating radiographic geometry of each radiographic image relative to the radiographic source and the subject, wherein said calculation step comprises stereoscopic analysis of the at least two visible light images to determine relative positioning of the visible light cameras and the subject, and calculation of the radiographic geometry from the relative positioning and from the geometric relation between the radiographic source and the visible light cameras;
• and
• generating three-dimensional radiographic information on the subject by processing the one or more of radiographic images based on the radiographic geometry calculated in said calculating step.

A system for processing one or more radiographic images of a subject, comprising:

• a radiographic source and sensor for acquiring the radiographic images of the subject;
• one or more visible light cameras configured to capture at least two visible light images of the subject in correspondence to each radiographic image of the subject obtained by the radiographic sensor;
• a memory for storing a geometric relation between the radiographic source and the visible light cameras at the time when the visible light images of the subject were captured;
• and
• a processor for calculating radiographic geometry of each radiographic image of the subject, wherein said calculation comprises stereoscopic analysis of the at least two visible light images to determine relative positioning of the visible light cameras and the subject, and calculation of the radiographic geometry from the relative positioning and from the geometric relation between the radiographic source and the visible light cameras,
• wherein said processor generates three-dimensional radiographic information on the subject by processing the one or more radiographic images based on the radiographic geometry.