Method and system for target detection using an infra-red sensor
First Claim
1. A method for dynamically changing a target detection system parameter, comprising:
- receiving image data, output from a sensor in a receiving system and generated using one of a discrete set of sensor integration times wherein each integration time being associated with a corresponding temperature range;
determining whether said image data satisfies at least one predetermined threshold; and
selecting the same one or a different sensor integration time for a succeeding frame of image data to produce a predetermined sensor sensitivity based on said image data satisfying said at least one predetermined threshold.
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Abstract
A target detection and tracking system provides dynamic changing of the integration time (IT) for the system IR sensor within a discrete set of values to maintain a high sensor sensitivity. The system changes the integration time to the same or a different sensor integration time within the discrete set based on the image data output from the sensor satisfying pre-determined system parameter thresholds. The system includes an IT-related saturation prediction function allowing the system to avoid unnecessary system saturation when determining whether an IT change should be made. The tracking portion of the system provides tracking feedback allowing target objects with a low sensor signature to be detected without being obscured by nearby uninterested objects that produce system saturation.
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Citations
26 Claims
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1. A method for dynamically changing a target detection system parameter, comprising:
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receiving image data, output from a sensor in a receiving system and generated using one of a discrete set of sensor integration times wherein each integration time being associated with a corresponding temperature range;
determining whether said image data satisfies at least one predetermined threshold; and
selecting the same one or a different sensor integration time for a succeeding frame of image data to produce a predetermined sensor sensitivity based on said image data satisfying said at least one predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for dynamically changing a target detection system parameter, comprising:
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a sensor for receiving image data in a receiving system and outputting image data using one of a discrete set of sensor integration times wherein each integration time being associated with a corresponding temperature range; and
a controller, interconnected to said sensor, for determining whether said image data satisfies at least one predetermined threshold and selecting the same one or a different sensor integration time for a succeeding frame of image data to produce a predetermined sensor sensitivity based on said image data satisfying said at least one predetermined threshold. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A machine-readable medium having stored thereon a plurality of executable instructions, the plurality of instructions comprising instructions to:
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determine whether received image data, generated and output from a sensor using one of a discrete set of sensor integration times wherein each integration time being associated with a corresponding temperature range, satisfies at least one predetermined threshold; and
select the same one or a different sensor integration time for a succeeding frame of image data to produce a predetermined sensor sensitivity based on said image data satisfying said at least one predetermined threshold. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification