Thermal imaging camera with compass calibration
First Claim
1. A method comprising:
- rotating a thermal imaging camera in a plurality of physical orientations in a three-dimensional space during a calibration routine;
receiving a plurality of measurements from a magnetic sensor mounted in the thermal imaging camera as the thermal imaging camera is rotated in the three-dimensional space during the calibration routine, each of the plurality of measurements being representative of three orthogonal components of a magnetic field when the thermal imaging camera is in a given orientation;
generating a plurality of data points from the plurality of measurements, each of the plurality of data points corresponding to one of the plurality of measurements representative of the three orthogonal components of the magnetic field; and
displaying on a display associated with the thermal imaging camera a simulated three-dimensional plot of the data points,wherein the simulated three-dimensional plot is updated in substantially real-time during the calibration routine as new data points are generated as a physical orientation of the thermal imaging camera changes.
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Accused Products
Abstract
A thermal imaging camera may include an electronic compass that can be calibrated after assembly of the thermal imaging camera. The electronic compass may include a magnetic sensor configured to sense three orthogonal components of a magnetic field. In some examples, the camera includes a processor configured to receive a plurality of measurements from the magnetic sensor as a physical orientation of the magnetic sensor is changed in a three-dimensional space. The processor may generate a plurality of data points from the plurality of measurements and control a display so as to display a simulated three-dimensional plot of the data points. The processor may control the display so the display updates in substantially real-time as new data points are generated by changing the physical orientation of the magnetic sensor.
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Citations
26 Claims
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1. A method comprising:
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rotating a thermal imaging camera in a plurality of physical orientations in a three-dimensional space during a calibration routine; receiving a plurality of measurements from a magnetic sensor mounted in the thermal imaging camera as the thermal imaging camera is rotated in the three-dimensional space during the calibration routine, each of the plurality of measurements being representative of three orthogonal components of a magnetic field when the thermal imaging camera is in a given orientation; generating a plurality of data points from the plurality of measurements, each of the plurality of data points corresponding to one of the plurality of measurements representative of the three orthogonal components of the magnetic field; and displaying on a display associated with the thermal imaging camera a simulated three-dimensional plot of the data points, wherein the simulated three-dimensional plot is updated in substantially real-time during the calibration routine as new data points are generated as a physical orientation of the thermal imaging camera changes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A thermal imaging camera system comprising:
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an infrared camera module configured to capture an infrared (IR) image of a target scene; a magnetic sensor associated with the infrared camera module and configured to sense three orthogonal components of a magnetic field; a display; and a processor configured to receive a plurality of measurements from the magnetic sensor as a physical orientation of the magnetic sensor is changed in a three-dimensional space during a calibration routine, each of the plurality of measurements being representative of the three orthogonal components of the magnetic field when the magnetic sensor is in a given orientation, generate a plurality of data points from the plurality of measurements during the calibration routine, each of the plurality of data points corresponding to one of the plurality of measurements representative of the three orthogonal components of the magnetic field, and control the display so as to display a simulated three-dimensional plot of the data points that updates in substantially real-time during the calibration routine as new data points are generated by changing the physical orientation of the magnetic sensor. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A non-transitory computer-readable medium comprising instructions that cause a programmable processor to:
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receive a plurality of measurements from a magnetic sensor mounted in a thermal imaging camera as a physical orientation of the thermal imaging camera is changed in a three-dimensional space during a calibration routine, each of the plurality of measurements being representative of three orthogonal components of a magnetic field when the thermal imaging camera is in a given orientation; generate a plurality of data points from the plurality of measurements during the calibration routine, each of the plurality of data points corresponding to one of the plurality of measurements representative of the three orthogonal components of the magnetic field; and control a display so as to display a simulated three-dimensional plot of the data points that updates in substantially real-time during the calibration routine as new data points are generated by changing the physical orientation of the magnetic sensor. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification