System and method for automatically determining calibration parameters of a fluoroscope
First Claim
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1. A method for determining calibration parameters of a medical fluoroscopic device, said method comprising the steps of:
- a) providing a calibration device comprising at least one reference marker visible under fluoroscopy;
b) determining the pose of the calibration device with a tracking device and a plate tool rigidly connected to the calibration device, said plate tool being sensed by said tracking device;
c) calculating pose of said reference marker based on said pose of the calibration device and the pose of the fluoroscopic device;
d) receiving a 2D image of calibration device using the fluoroscopic device; and
e) calculating at least one calibration parameter of the fluoroscopic device based on image information from said 2D image and said pose of said reference marker.
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Abstract
A method and system for estimating calibration parameters of a medical fluoroscope and more particularly a method and system which automatically determines intrinsic and distortion correction parameters of a fluoroscopy device.
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Citations
12 Claims
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1. A method for determining calibration parameters of a medical fluoroscopic device, said method comprising the steps of:
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a) providing a calibration device comprising at least one reference marker visible under fluoroscopy; b) determining the pose of the calibration device with a tracking device and a plate tool rigidly connected to the calibration device, said plate tool being sensed by said tracking device; c) calculating pose of said reference marker based on said pose of the calibration device and the pose of the fluoroscopic device; d) receiving a 2D image of calibration device using the fluoroscopic device; and e) calculating at least one calibration parameter of the fluoroscopic device based on image information from said 2D image and said pose of said reference marker. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for calibrating a medical fluoroscopic device comprises:
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a computer workstation comprising a processor, memory, and a input device; a tracking device; a calibration plate having at least one reference marker visible under the fluoroscopic device; and a plate tool in fixed engagement with the calibration device and comprising a plurality of locators visible with said tracking device, and wherein the processor being operable to calculate a pose of said reference marker based on said position of the calibration device and the pose of the fluoroscopic device;
to receive a 2D image of the calibration device using the fluoroscopic device; and
to calculate at least one calibration parameter of fluoroscopic device based on image information from said 2D image and said pose of said reference marker. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification