Imaging data correction system and method
First Claim
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1. A method of correcting imaging data received from a sensor for environmental effects, the method comprising:
- placing a calibration system in an environment similar to or the same as a monitored environment from which imaging data is to be collected by a sensor during a data collection time period, the calibration system being configured to emit and/or radiate a test pattern having geometric, temporal, and/or electromagnetic characteristics, the calibration system having at least one emission/radiation point, each emission/radiation point including at least one emission/radiation source that emits and/or radiates in a region of the electromagnetic spectrum, the calibration system and the object being sufficiently far from the sensor so that imaging data collected by the sensor is distorted by atmospheric variables;
emitting and/or radiating the test pattern having geometric, temporal, and/or electromagnetic characteristics with the calibration system;
collecting imaging data from the calibration system with a sensor;
comparing the imaging data collected by the sensor from the test pattern to the geometric, temporal, and/or electromagnetic characteristics of the test pattern to determine distortion caused by the atmospheric variables;
determining an imaging error factor based on differences between the imaging data collected by the sensor from the test pattern and the geometric, temporal, and/or electromagnetic characteristics of the test pattern; and
correcting the imaging data collected by the sensor from an object during the data collection time period by the error factor to reduce the distortion caused by the atmospheric variables.
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Abstract
Methods and systems for use in calibrating imaging data, are provided that include using a calibration array to generate a test pattern. The calibration array can emit a test pattern having geometric, temporal, and electromagnetic characteristics. The collected data can be compared with the geometric, temporal and electromagnetic characteristics to determine an error factor that can then be used in analyzing the collected data.
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Citations
32 Claims
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1. A method of correcting imaging data received from a sensor for environmental effects, the method comprising:
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placing a calibration system in an environment similar to or the same as a monitored environment from which imaging data is to be collected by a sensor during a data collection time period, the calibration system being configured to emit and/or radiate a test pattern having geometric, temporal, and/or electromagnetic characteristics, the calibration system having at least one emission/radiation point, each emission/radiation point including at least one emission/radiation source that emits and/or radiates in a region of the electromagnetic spectrum, the calibration system and the object being sufficiently far from the sensor so that imaging data collected by the sensor is distorted by atmospheric variables; emitting and/or radiating the test pattern having geometric, temporal, and/or electromagnetic characteristics with the calibration system; collecting imaging data from the calibration system with a sensor; comparing the imaging data collected by the sensor from the test pattern to the geometric, temporal, and/or electromagnetic characteristics of the test pattern to determine distortion caused by the atmospheric variables; determining an imaging error factor based on differences between the imaging data collected by the sensor from the test pattern and the geometric, temporal, and/or electromagnetic characteristics of the test pattern; and correcting the imaging data collected by the sensor from an object during the data collection time period by the error factor to reduce the distortion caused by the atmospheric variables. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A calibration system that can be placed in an environment similar to or the same as a monitored environment from which imaging data is to be collected by a sensor and used for correcting imaging data received from the sensor, the calibration system and an object in the monitored environment being sufficiently far from the sensor so that imaging data collected by the sensor is distorted by atmospheric variables, the calibration system comprising:
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a calibration array that emits and/or radiates a test pattern having geometric, temporal, and/or electromagnetic characteristics, the calibration array having a plurality of emission/radiation points, each emission/radiation point including at least one emission/radiation source that emits in a region of the electromagnetic spectrum; a control unit operatively connected to the calibration array that provides test pattern commands to the calibration array in order to cause the calibration array to emit the test pattern; and a communication system operatively connected to the control unit that communicates data from the calibration system to a remote location. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification