METHOD AND SYSTEM FOR CALIBRATION OF A MEDICAL IMAGING SYSTEM

摘要

Methods and systems for calibrating a medical imaging system based on visual feedback are described. A method includes projecting one or more points of a target area (real world) of the medical imaging system as an overlay on the feedback frame, wherein the feedback frame is an image of the target area captured by an imaging device of a visual feedback system. One or more points of the target area are then located on the feedback frame. Further, the method includes improving calibration accuracy of the medical imaging system by minimizing difference between one or more projected points and one or more point located on the feedback frame below a predefined threshold. The difference is minimized via an iterative error correction mechanism.

主权项

1. A method of calibrating a medical imaging system, the method comprising:
capturing, by an imaging device, an image of a target area of the medical imaging system; determining, based on an image data set, frame coordinates of at least one point included in the target area, the frame coordinates indicating a location of the at least one point in a feedback frame; projecting the at least one point included in the target area as an overlay on the feedback frame based on mapping and the image data set, wherein the mapping includes converting real world coordinates of the at least one point included in the target area to the frame coordinates; and calibrating the medical imaging system, wherein the calibrating includes iterative error correction reducing a difference between coordinates of the projection of the at least one point and the frame coordinates of the at least one point to below a threshold.