CA2140681A1 - Wide area coverage infrared search system - Google Patents
Wide area coverage infrared search systemInfo
- Publication number
- CA2140681A1 CA2140681A1 CA 2140681 CA2140681A CA2140681A1 CA 2140681 A1 CA2140681 A1 CA 2140681A1 CA 2140681 CA2140681 CA 2140681 CA 2140681 A CA2140681 A CA 2140681A CA 2140681 A1 CA2140681 A1 CA 2140681A1
- Authority
- CA
- Canada
- Prior art keywords
- image
- nfov
- wfov
- displayed
- observer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Abstract
An imaging system wherein two field-of-views (FOVs) images of a scene are obtained and displayed as a single image so that both FOVs can be viewed simultaneously by an observer.
This imagining system is particularly directed to infrared (IR) imaging of a scene which is useful for search-and-rescue (SAR) operations. One IR image sensor provides a low resolution, high sensitivity, wide field-of-view (WFOV) image of the scene which is displayed as a large, low resolution, WFOV image on a display apparatus. A second IR sensor provides a high resolution narrow field-of-view (NFOV) image of a selected portion of the scene wherein the second sensor's NFOV optics can be directed to any particular area within the WFOV. That smaller NFOV image is also displayed, by the display apparatus, within the WFOV
displayed image and it is displayed at the same area in the WFOV
image as that actually covered by the NFOV, the NFOV image displacing the WFOV image of that area with the two images being fused together into a single image by the display apparatus.
This is rather similar in operation to an observer's eye which has a high resolution central NFOV vision and a very large FOV
peripheral vision that has low resolution but a high sensitivity to detection of any anomaly. By using an eye movement tracking system to aim the NFOV image detector and the position that the NFOV image is displayed, an observer's central vision can always be directed to the high resolution NFOV image with that observer's peripheral vision simultaneously viewing the WFOV low resolution image.
This imagining system is particularly directed to infrared (IR) imaging of a scene which is useful for search-and-rescue (SAR) operations. One IR image sensor provides a low resolution, high sensitivity, wide field-of-view (WFOV) image of the scene which is displayed as a large, low resolution, WFOV image on a display apparatus. A second IR sensor provides a high resolution narrow field-of-view (NFOV) image of a selected portion of the scene wherein the second sensor's NFOV optics can be directed to any particular area within the WFOV. That smaller NFOV image is also displayed, by the display apparatus, within the WFOV
displayed image and it is displayed at the same area in the WFOV
image as that actually covered by the NFOV, the NFOV image displacing the WFOV image of that area with the two images being fused together into a single image by the display apparatus.
This is rather similar in operation to an observer's eye which has a high resolution central NFOV vision and a very large FOV
peripheral vision that has low resolution but a high sensitivity to detection of any anomaly. By using an eye movement tracking system to aim the NFOV image detector and the position that the NFOV image is displayed, an observer's central vision can always be directed to the high resolution NFOV image with that observer's peripheral vision simultaneously viewing the WFOV low resolution image.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26206194A | 1994-06-17 | 1994-06-17 | |
US08/262,061 | 1994-06-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2140681A1 true CA2140681A1 (en) | 1995-12-18 |
CA2140681C CA2140681C (en) | 2003-09-23 |
Family
ID=22996000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002140681A Expired - Fee Related CA2140681C (en) | 1994-06-17 | 1995-01-20 | Wide area coverage infrared search system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2140681C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1099969A2 (en) * | 1999-11-12 | 2001-05-16 | Be Here Corporation | Multiple resolution image capture arrangement |
US8373127B2 (en) | 2008-06-26 | 2013-02-12 | Lynntech, Inc. | Method of searching for a thermal target |
USRE44087E1 (en) | 1996-06-24 | 2013-03-19 | B.H. Image Co. Llc | Presenting panoramic images with geometric transformation |
CN112578904A (en) * | 2020-11-17 | 2021-03-30 | 北京津发科技股份有限公司 | Man-machine interaction testing device for mobile terminal |
FR3107977A1 (en) * | 2020-03-03 | 2021-09-10 | Thales | ASSISTANCE PROCESS FOR THE DETECTION OF ASSOCIATED ELEMENTS, DEVICE AND PLATFORM |
-
1995
- 1995-01-20 CA CA002140681A patent/CA2140681C/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE44087E1 (en) | 1996-06-24 | 2013-03-19 | B.H. Image Co. Llc | Presenting panoramic images with geometric transformation |
EP1099969A2 (en) * | 1999-11-12 | 2001-05-16 | Be Here Corporation | Multiple resolution image capture arrangement |
EP1099969A3 (en) * | 1999-11-12 | 2003-09-10 | Be Here Corporation | Multiple resolution image capture arrangement |
US8373127B2 (en) | 2008-06-26 | 2013-02-12 | Lynntech, Inc. | Method of searching for a thermal target |
EP2294811B1 (en) * | 2008-06-26 | 2015-09-30 | Lynntech, Inc. | Method of searching for a thermal target |
FR3107977A1 (en) * | 2020-03-03 | 2021-09-10 | Thales | ASSISTANCE PROCESS FOR THE DETECTION OF ASSOCIATED ELEMENTS, DEVICE AND PLATFORM |
WO2021175930A1 (en) * | 2020-03-03 | 2021-09-10 | Thales | Method for assisting in the detection of elements, and associated device and platform |
US11989945B2 (en) | 2020-03-03 | 2024-05-21 | Thales | Method for assisting with the detection of elements, associated device and platform |
CN112578904A (en) * | 2020-11-17 | 2021-03-30 | 北京津发科技股份有限公司 | Man-machine interaction testing device for mobile terminal |
Also Published As
Publication number | Publication date |
---|---|
CA2140681C (en) | 2003-09-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7358498B2 (en) | System and a method for a smart surveillance system | |
US7842921B2 (en) | Clip-on infrared imager | |
US5729016A (en) | Low cost night vision system for nonmilitary surface vehicles | |
US7307793B2 (en) | Fusion night vision system | |
US20050206773A1 (en) | Optical tracking system using variable focal length lens | |
DE69426822T2 (en) | WIDE-ANGLE IMAGING SYSTEM | |
ATE208941T1 (en) | ALL-ROUND VISIBILITY SURVEILLANCE SYSTEM WITH MOTIONLESS CAMERA | |
US10375322B2 (en) | Optical observation device | |
FR2830339B1 (en) | PASSIVE WATCH OPTRONIC DEVICE | |
US20220368822A1 (en) | Night Vision Apparatus | |
US20110141223A1 (en) | Multiple Operating Mode Optical Instrument | |
US7327513B2 (en) | Method and apparatus for viewing target | |
CA2140681A1 (en) | Wide area coverage infrared search system | |
CN205693765U (en) | It is applied to the panorama infrared viewing device of augmented reality system | |
GB2239762A (en) | Panoramic imaging system | |
JP3309532B2 (en) | Thermal image / visible image detector | |
WO1999013355A1 (en) | Single aperture thermal imager, direct view, tv sight and laser ranging system subsystems including optics, components, displays, architecture with gps (global positioning sensors) | |
GB2259211A (en) | Thermal imaging system | |
RU2786356C1 (en) | Dual-spectrum video surveillance system | |
WO2001081972A3 (en) | Method and apparatus for obtaining infrared images in a night vision system | |
CA2072174A1 (en) | Video camera system using thermal image detecting means | |
Chevrette et al. | Wide-area-coverage infrared surveillance system | |
Bergeron et al. | Dual-band dual field-of-view TVWS prototype | |
Huckridge et al. | Firefly: a wide-field surveillance system for long-range target detection and recognition | |
GB2360413A (en) | Wide angle parabolic imaging and image mapping apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20130121 |
|
MKLA | Lapsed |
Effective date: 20130121 |