Thermal anomaly detection
First Claim
1. A thermal analysis system comprising:
- a memory comprising a statistical thermal profile representing typical thermal behavior of each of a plurality of regions of a target scene and determined from a plurality of thermal images of the target scene over time;
an infrared (IR) camera module capable of receiving IR radiation from a target scene and generating corresponding thermal image data representative of a heat pattern across the target scene based on the received IR radiation; and
a processor in communication with the memory and the IR camera module and configured to;
receive thermal image data from the IR camera module representative of the heat pattern of the target scene;
for each of the plurality of regions in the received thermal image data, compare the thermal image data of the region to a corresponding region in the statistical thermal profile of the target scene;
generate anomaly image data comprising a plurality of regions, each region in the anomaly image data corresponding to a respective region in the received thermal image data and representative of the degree of anomalousness of the received thermal image data with respect to the statistical thermal profile in that region; and
generate a display image comprising the anomaly image data blended with one or more additional data streams.
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Accused Products
Abstract
Systems and methods can be used to detect thermal anomalies in a target scene of an infrared image. Acquired thermal image data can be compared to a statistical thermal profile to detect thermal anomalies in the image data. Anomaly data based on the comparison can be used to generate an image representing locations and/or severity of detected anomalies. Systems can be used to acquire thermal image data for generating and/or updating statistical thermal profiles for use in anomaly detection processes. Auxiliary measurement devices can provide measurement data representative of one or more parameters of the target scene. The measurement data can be used to select from a plurality of possible statistical thermal profiles associated with the target scene to best match the current parameters of the scene.
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Citations
27 Claims
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1. A thermal analysis system comprising:
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a memory comprising a statistical thermal profile representing typical thermal behavior of each of a plurality of regions of a target scene and determined from a plurality of thermal images of the target scene over time; an infrared (IR) camera module capable of receiving IR radiation from a target scene and generating corresponding thermal image data representative of a heat pattern across the target scene based on the received IR radiation; and a processor in communication with the memory and the IR camera module and configured to; receive thermal image data from the IR camera module representative of the heat pattern of the target scene; for each of the plurality of regions in the received thermal image data, compare the thermal image data of the region to a corresponding region in the statistical thermal profile of the target scene; generate anomaly image data comprising a plurality of regions, each region in the anomaly image data corresponding to a respective region in the received thermal image data and representative of the degree of anomalousness of the received thermal image data with respect to the statistical thermal profile in that region; and generate a display image comprising the anomaly image data blended with one or more additional data streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A thermal analysis system comprising:
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an infrared (IR) camera module capable of receiving IR radiation from a target scene and generating corresponding IR image data representative of the heat pattern across the target scene based on the received IR radiation; a memory in communication with the IR camera module; an auxiliary measurement device configured to generate measurement data representative of at least one parameter of the target scene a processor in communication with the auxiliary measurement device, the IR camera module, and the memory, the processor being configured to; (a) at a plurality of times, capture thermal image data from a target scene using the IR camera module and acquire measurement data from the auxiliary measurement device at approximately the same time as capturing the thermal image data; and (b) generate a statistical thermal profile of the target scene based on the thermal image data captured at the plurality of times;
whereinthe statistical thermal profile comprises, for each of a plurality of regions in the thermal image data, at least two statistical parameters representative of the typical thermal behavior in the target scene in each of the plurality of regions, and generating the statistical thermal profile comprises associating the captured thermal image data with an operating condition based on the acquired measurement data and generating a statistical thermal profile corresponding to the operating condition. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A thermal analysis system comprising:
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an infrared (IR) camera module capable of receiving IR radiation from a target scene and generating corresponding IR image data representative of the heat pattern across the target scene based on the received IR radiation; a memory in communication with the IR camera module; a processor in communication with the IR camera module and the memory, the processor being configured to; (a) at a plurality of times, capture thermal image data from a target scene using the IR camera module; and (b) generate a statistical thermal profile of the target scene based on the thermal image data captured at the plurality of times;
whereinthe statistical thermal profile comprises, for each of a plurality of regions in the thermal image data, at least two statistical parameters representative of the typical thermal behavior in the target scene in each of the plurality of regions; and the processing steps of (a) capturing thermal image data from a target scene using the IR camera module and (b) generating a statistical thermal profile of the target scene based on the captured thermal image data comprise; capturing thermal image data; determining the at least two statistical parameters from the captured thermal image data; aggregating the determined statistical parameters from the captured thermal image data; generating the statistical thermal profile using the aggregated statistical parameters; and discarding the captured thermal image data. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification