High-speed Inter-modality Image Registration via Iterative Feature Matching

This invention is a patented system and method to control the alignment of a radiation therapy beam, using machine vision to locate the positon of the treatment target. The invention consists of a software process that acquires radiographic images of the patient during treatment, computes from these images the position and orientation of the patient's anatomy to be treated, and communicates the measured position to the treatment system, thus allowing the treatment system to recognize and respond in real time to the position of the patient in the imaging system field of view.