Infrared camera calibration systems and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G12B-013/00
G01J-005/02
출원번호
UP-0868779
(2007-10-08)
등록번호
US-7679046
(2010-04-21)
발명자
/ 주소
Benson, Robert G.
Czerepuszko, Paul A.
출원인 / 주소
FLIR Systems, Inc.
대리인 / 주소
Haynes and Boone, LLP
인용정보
피인용 횟수 :
9인용 특허 :
6
초록▼
Systems and methods are disclosed herein to provide infrared camera systems and infrared camera calibration techniques in accordance with one or more embodiments of the present invention. For example in accordance with an embodiment, a method of calibrating an infrared camera includes capturing vide
Systems and methods are disclosed herein to provide infrared camera systems and infrared camera calibration techniques in accordance with one or more embodiments of the present invention. For example in accordance with an embodiment, a method of calibrating an infrared camera includes capturing video images of a calibration vessel having one or more chambers filled with a gas; displaying the video images from the capturing; and adjusting settings of the infrared camera such that colors of the displayed video images of the one or more chambers approximately match predetermined colors of one or more corresponding sections of a video overlay.
대표청구항▼
What is claimed is: 1. An infrared camera system comprising: an infrared camera adapted to provide infrared image data and having adjustable camera settings; a display, coupled to the infrared camera, adapted to receive the infrared image data; a calibration vessel having chambers containing differ
What is claimed is: 1. An infrared camera system comprising: an infrared camera adapted to provide infrared image data and having adjustable camera settings; a display, coupled to the infrared camera, adapted to receive the infrared image data; a calibration vessel having chambers containing different concentrations of a gas, wherein the calibration vessel is external to the infrared camera; and a video overlay having sections corresponding to the chambers, wherein the sections provide proper colors for calibrating the infrared camera to detect the different concentrations of the gas by adjusting the camera settings such that colors of the infrared image data from the infrared camera of the chambers containing the different concentrations of the gas as shown on the display approximately match the proper colors of the corresponding sections. 2. The system of claim 1, wherein the camera settings comprise a gain and a level, and the colors of the video overlay represent predetermined infrared absorption levels corresponding to the different concentrations of the gas. 3. The system of claim 1, wherein the calibration vessel further comprises another chamber with a second gas different than the gas, the second gas providing a reference for the calibration of the infrared camera relative to the corresponding section of the video overlay. 4. The system of claim 1, further comprising an infrared source, and wherein the calibration vessel includes infrared passband windows adapted to allow infrared radiation from the infrared source to pass through the chambers to the infrared camera. 5. The system of claim 1, wherein the video overlay is stored in the infrared camera and adapted to be shown on the display. 6. A calibration vessel comprising: a housing; a plurality of chambers within the housing, wherein the chambers contain a gas, with each chamber having a different concentration of the gas; an infrared passband window, coupled to the housing, adapted to allow infrared radiation traveling through the chambers to be received by an infrared camera external to the calibration vessel, wherein the calibration vessel serves as a calibration tool for the infrared camera to detect the different concentrations of the gas within the chambers; and a reference chamber within the housing, wherein the reference chamber contains a second gas different from the gas, wherein the second gas provides a reference when the calibration vessel is used as the calibration tool for the infrared camera. 7. The calibration vessel of claim 6, wherein the infrared camera is calibrated by receiving the infrared radiation which traveled through the chambers and the infrared passband window and adjusting a gain and a level of the infrared camera such that displayed infrared images of the chambers as provided by the infrared camera match predetermined colors of a video overlay corresponding to the different concentrations of the gas within the calibration vessel, wherein the colors represent infrared absorption levels corresponding to the different concentrations of the gas. 8. The calibration vessel of claim 6, further comprising a label region on the housing, wherein the label regions provide information comprising a gas type, a gas concentration, and/or a corresponding video overlay description. 9. The calibration vessel of claim 6, further comprising indicia on the housing indicating proper orientation of the calibration vessel when used as a calibration tool for the infrared camera. 10. The calibration vessel of claim 6, wherein the calibration vessel forms one part of a calibration tool system, wherein the calibration tool system further comprises a video overlay corresponding to the calibration vessel and having video overlay sections corresponding to the chambers which provide proper colors for calibrating the infrared camera to detect the different concentrations of the gas based on camera setting adjustments such that colors of video images from the infrared camera of the chambers containing the different concentrations of the gas approximately match the proper colors of the corresponding video overlay sections. 11. A method of calibrating an infrared camera, the method comprising: capturing video images of a calibration vessel having chambers filled with different concentrations of a gas, wherein the calibration vessel is external to the infrared camera; displaying the video images from the capturing; and adjusting settings of the infrared camera such that colors of the displayed video images of the chambers corresponding to the different concentrations of the gas approximately match predetermined colors of corresponding sections of a video overlay to calibrate the infrared camera to detect the different concentrations of the gas. 12. The method of claim 11, wherein the adjusting comprises adjusting a gain setting and a level setting of the infrared camera, and wherein the predetermined colors represent predetermined infrared absorption levels corresponding to the different concentrations of the gas. 13. The method of claim 11, further comprising orientating the calibration vessel such that the displayed video images of the chambers are aligned with the corresponding sections of the video overlay. 14. The method of claim 11, further comprising selecting the video overlay from among a plurality of video overlays, wherein the selected video overlay corresponds to the calibration vessel. 15. The method of claim 11, wherein the adjusting upon completion verifies that the infrared camera is calibrated to detect the gas. 16. The method of claim 11, further comprising: selecting the calibration vessel from among a plurality of the calibration vessels, wherein the calibrations vessels each contain different gases; and selecting the video overlay from among a plurality of video overlays, wherein the selected video overlay corresponds to the selected calibration vessel. 17. A method of making a calibration system for an infrared camera, the method comprising: determining a sensitivity of the infrared camera to a particular gas; creating a calibration vessel having a plurality of chambers; and filling the chambers with different concentrations of the particular gas, wherein the concentrations are based on the determining of the sensitivity of the infrared camera to the particular gas and are selected to provide discernible color differences when the calibration vessel, which is external to the infrared camera, is viewed with the infrared camera to aid in calibrating the infrared camera to the different concentrations of the particular gas. 18. The method of claim 17, further comprising creating a video overlay corresponding to the calibration vessel, wherein the video overlay includes video overlay sections corresponding to the chambers, with the video overlay sections having predetermined colors for calibrating the infrared camera when viewing the chambers. 19. The method of claim 18, further comprising filling one of the chambers with a different gas for use as a calibration reference, wherein the video overlay includes a video overlay section corresponding to the chamber with the different gas, and wherein the predetermined colors represent predetermined infrared absorption levels corresponding to the different concentrations of the particular gas. 20. An infrared camera comprising: a housing; an infrared detector coupled within the housing; a memory coupled within the housing, the memory adapted to store a video overlay having colors corresponding to infrared absorption levels for different concentrations of a gas; and a display adapted to receive from the memory the video overlay for a user of the infrared camera to view along with infrared image data from the infrared detector of an external calibration vessel, relative to the infrared camera, containing chambers filled with different concentrations of the gas; wherein setting adjustments of the infrared camera to approximately match colors of the displayed infrared image data of the calibration vessel to colors of the corresponding displayed video overlay calibrates the infrared camera to detect the different concentrations of the gas. 21. The infrared camera of claim 20, wherein the memory stores a plurality of the video overlays corresponding to a plurality of the calibration vessels for calibrating the infrared camera for corresponding gases. 22. The infrared camera of claim 20, further comprising: user controls coupled to the housing adapted to provide user control of the setting adjustments, wherein the user controls comprise a gain setting adjustment and a level setting adjustment; and logic coupled within the housing and coupled to the infrared detector, the memory, the user controls, and the display.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Bailey William D. ; Patton Craig A., Folded optical path gas analyzer with cylindrical chopper.
Corley Ferrand D. E. (80 Kleins Crescent Kleinsberg ; Ontario CAX L0G 1C0), Image evaluation of at least one characteristic of an object, and method of evaluation.
Heard James L. (Torrance CA) Berwin Ted W. (Playa del Rey CA) Andrews Roland L. (Altadena CA) Scanlan Larry A. (Los Angeles CA), Signal processor for an imaging sensor system.
Benson, Robert G.; Scanlon, Thomas J.; Czerepuszko, Paul A., Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth.
Benson, Robert G.; Scanlon, Thomas J.; Czerepuszko, Paul A., Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth.
Benson, Robert G.; Scanlon, Thomas J.; Czerepuszko, Paul A., Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.