Image based motion control correction
AssigneeBrainlab AG
InventorRainer BIRKENBACH
Life of this patent
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Abstract
The present invention relates to a method of adjusting control commands for moving a medical camera connected to a motorized support structure, wherein the adjustment is based on images provided by the camera. Based on a comparison of at least two images provided by the camera, an actual motion of the camera is determined and compared with an intended motion defined by a control command forwarded to the motorized support structure. In case a deviation between the intended motion and the actual motion is determined, a correction is applied to the control command such that the actual motion of the camera coincides with the intended motion.
Claims17
A computer-implemented method of adjusting control commands for moving an associated medical imaging device coupled with an associated moving device that is operable to move the associated medical imaging device, the method comprising:
- acquiring first image data that describes a first image of an associated structure received by the associated medical imaging device;
- acquiring intended motion data that describes an intended motion of the associated medical imaging device, wherein the intended motion data is based on a control command received by the associated moving device;
- acquiring second image data that describes a second image of the associated structure received by the associated medical imaging device that has been moved by the associated moving device as a result of the associated moving device receiving the control command;
- determining actual motion data based on the first image data and the second image data, wherein the actual motion data describes an actual motion of the associated medical imaging device;
- and
- determining correction data based on the intended motion data and the actual motion data, wherein the correction data describes a correction to be applied to the control command in order to produce the intended motion of the associated medical imaging device.
A program logic stored in a memory device of a computer that when executed on the computer or when loaded onto the computer, causes the computer to perform a method of adjusting control commands for moving an associated medical imaging device coupled with an associated moving device that is operable to move the associated medical imaging device, the method comprising:
- acquiring first image data that describes a first image of an associated structure received by the associated medical imaging device;
- acquiring intended motion data that describes an intended motion of the associated medical imaging device, wherein the intended motion data is based on a control command received by the associated moving device;
- acquiring second image data that describes a second image of the associated structure received by the associated medical imaging device that has been moved by the associated moving device as a result of the associated moving device receiving the control command;
- determining actual motion data based on the first image data and the second image data, wherein the actual motion data describes an actual motion of the associated medical imaging device;
- and
- determining correction data based on the intended motion data and the actual motion data, wherein the correction data describes a correction to be applied to the control command in order to produce the intended motion of the associated medical imaging device.
A medical system comprising:
- a computer comprising a processor and a memory device, wherein the computer is operable to execute program logic stored in the memory device to perform a method of adjusting control commands for moving a medical imaging device coupled with a moving device that is operable to move the medical imaging device, the method comprising:
- acquiring first image data that describes a first image of an associated structure received by the medical imaging device;
- acquiring intended motion data that describes an intended motion of the medical imaging device, wherein the intended motion data is based on a control command received by the moving device;
- acquiring second image data that describes a second image of the structure received by the medical imaging device that has been moved by the moving device as a result of the moving device receiving the control command;
- determining actual motion data based on the first image data and the second image data, wherein the actual motion data describes an actual motion of the medical imaging device;
- and
- determining correction data based on the intended motion data and the actual motion data, wherein the correction data describes a correction to be applied to the control command in order to produce the intended motion of the medical imaging device;
- and
- a moving device operable to move a medical imaging device connected with the moving device wherein the computer is operably coupled to the moving device for issuing a control signal to the moving device for controlling the operation of the moving device based on the first image data and the second image data.
(canceled)
Dependencies are inferred from the claim text.