IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0101007
(2011-05-04)
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등록번호 |
US-8304729
(2012-11-06)
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발명자
/ 주소 |
- Snider, Robin Terry
- McGee, Jeffrey Dykes
- Perry, Michael Dale
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출원인 / 주소 |
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대리인 / 주소 |
Fitch, Even, Tabin & Flannery, LLP
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인용정보 |
피인용 횟수 :
4 인용 특허 :
8 |
초록
▼
The present embodiments provide methods, systems and apparatuses that detect, classify and locate flash events. In some implementations, some of the methods detect a flash event, trigger an imaging system in response to detecting the flash event to capture an image of an area that includes the flash
The present embodiments provide methods, systems and apparatuses that detect, classify and locate flash events. In some implementations, some of the methods detect a flash event, trigger an imaging system in response to detecting the flash event to capture an image of an area that includes the flash event, and determines a location of the flash event.
대표청구항
▼
1. A method of detecting and locating flash events, the method comprising: detecting a flash event of interest using a detection system;triggering an imaging system in response to detecting the flash event of interest to capture a first image including at least a portion of the flash event of intere
1. A method of detecting and locating flash events, the method comprising: detecting a flash event of interest using a detection system;triggering an imaging system in response to detecting the flash event of interest to capture a first image including at least a portion of the flash event of interest; anddetermining a location of the flash event of interest as a function of the first image;wherein the detection system is separate from the imaging system. 2. The method of claim 1, further comprising: capturing, using the imaging system, a second image without the flash event of interest; andsubtracting the second image from the first image producing a difference image comprising the captured flash event;wherein the determining the location of the flash event of interest step comprises determining the location of the flash event of interest using the difference image. 3. The method of claim 1, wherein the detecting the flash event of interest step comprises: detecting a flash event;evaluating a temporal signature of the detected flash event; anddetermining whether the temporal signature correlates with a known temporal signature to determine that the flash event is the flash event of interest. 4. The method of claim 3, wherein the detecting the flash event of interest step comprises: generating a spectral signature of the detected flash event; anddetermining whether the spectral signature correlates with a known spectral signature to determine that the flash event is the flash event of interest. 5. The method of claim 1, wherein detecting the flash event of interest step comprises: detecting a flash event;determining a rise time of a first detector output in response to detecting the flash event;determining whether the rise time correlates with a known rise time; andidentifying the flash event as the flash event of interest when the rise time correlates with the known rise time. 6. The method of claim 1, wherein the detecting the flash event of interest step comprises: detecting a flash event;generating a spectral signature of the detected the flash event; anddetermining whether the spectral signature correlates with a known spectral signature to determine that the flash event is the flash event of interest. 7. The method of claim 1, further comprises: spectrally evaluating the flash event of interest; andclassifying the flash event of interest based on the spectral evaluation. 8. The method of claim 1, wherein the determining the location step comprises determining a geo-location of the flash event of interest. 9. The method of claim 1, wherein the detecting the flash event of interest step comprises: detecting a first wavelength band of a flash event and a second wavelength band of the flash event;determining a spectral signature as a function of the detected first wavelength band and the detected second wavelength band; anddetermining whether the spectral signature corresponds with a known signature of interest. 10. The method of claim 1, wherein the detecting the flash event of interest uses one or both of a temporal detector and a spectral detector of the detection system. 11. The method of claim 1, wherein the determining whether the flash event is the flash event of interest step comprises determining whether the flash event is the flash event of interest without using the first image. 12. The method of claim 1, further comprising: operating a first imaging device of the imaging system in a continuous operation repeatedly capturing images; andwherein the triggering step comprises maintaining a first exposure of the first imaging device that is actively capturing an image at the time the flash event is active, and reading the first image from the first imaging device. 13. The method of claim 12, further comprising: operating a second imaging device of the imaging system in a continuous operation repeatedly capturing images, such that exposures of the first imaging device during the continuous operation of the first imaging device are staggered relative to exposures of the second imaging device during the continuous operation of the second imaging device. 14. A system that detects and locates flash events, the system comprising: a detection system configured to detect a flash event of interest and trigger an imaging system to capture a first image including at least a portion of the flash event of interest;the imaging system coupled to the detection system and configured to capture the first image including at least the portion of the flash event of interest, wherein the detection system is separate from the imaging system; anda location system configured to determine a location of the flash event of interest as a function of the first image. 15. The system of claim 14, wherein the detection system comprises: a detector unit configured to detect a flash event; anda discriminator coupled to the detector unit and configured to determine if the flash event is the flash event of interest and trigger the imaging system to capture the first image including at least the portion of the flash event of interest. 16. The system of claim 15, wherein the detector unit comprises one or both of a temporal detector and a spectral detector. 17. The system of claim 15, wherein the discriminator is further configured to determine a temporal signature based on an output of the detector unit, and determine whether the temporal signature correlates with a known temporal signature to determine if the flash event is the flash event of interest. 18. The system of claim 15, wherein the discriminator is further configured to determine a spectral signature based on an output of the detector unit, and determine whether the spectral signature correlates with a known spectral signature to determine if the flash event is the flash event of interest. 19. The system of claim 14, wherein the location system is configured to determine a geo-location of the flash event of interest. 20. The system of claim 14, wherein the detection system is configured to detect the flash event of interest without using the first image. 21. The system of claim 14, wherein the imaging system is further configured to capture a second image without the flash event; wherein the system further comprises an image subtractor coupled with the imaging system, where the image subtractor is configured to subtract the first image and the second image to produce a difference image including the portion of the flash event of interest;wherein the location system is configured to identify the location of the flash event of interest based on the difference image. 22. A method for use in detecting a flash event from weaponry, comprising: detecting, using a detection system, the flash event from the weaponry; andcapturing, in response to detecting the flash event and using an imaging system, a first image during the flash event such that the first image includes at least a portion of the flash event, wherein the detecting the flash event does not use the first image and the imaging system is separate from the detection system. 23. The method of claim 22, wherein the detecting the flash event from the weaponry step comprises: detecting the flash event; anddetermining that the flash event is an event of interest as having likely been produced by the weaponry. 24. The method of claim 22, further comprising: determining a location of the flash event from the weaponry.
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