Multiple camera systems and methods

• US 7,183,549 B2
• Filed: 09/09/2004
• Issued: 02/27/2007
• Est. Priority Date: 09/09/2004
• Status: Active Grant

• Current Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Original Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Inventors: Teich, Andrew C., Frank, Jeff
• Primary Examiner(s): Hannaher; Constantine
• Assistant Examiner(s): WEBB, CHRISTOPHER G
• Application Number:
  US10/936,896
• Publication Number:
  US 20060049350A1
• Time in Patent Office: 901 Days
• Field of Search: 250/330
• US Class Current: 250/330
• CPC Class Codes: G08B 13/19641 Multiple cameras having overlapping views on a single scene
• CPC Class Codes: G08B 13/19693 using multiple video sources viewed on a single or compound screen
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 23/698 for achieving an enlarged field of view, e.g. panoramic image capture
• CPC Class Codes: H04N 5/33 Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources

Abstract

Systems and methods are disclosed herein to provide improved cameras and camera systems. For example, in accordance with an embodiment of the present invention, a networkable camera system is disclosed that is able to provide up to a 360° field of view and is operable during day and night conditions by utilizing thermal imagers.

Claims

1. A camera system comprising:

a first infrared camera having a first field of view and adapted to provide thermal image data, wherein the first infrared camera comprises a first detector having a different number of pixels in a horizontal direction relative to a vertical direction to provide the thermal image data for the desired first field of view;

a second infrared camera having a second field of view and adapted to provide thermal image data, wherein the second infrared camera comprises a second detector having a different number of pixels in a horizontal direction relative to a vertical direction to provide the thermal image data for the desired second field of view, wherein the first and second field of views provide a wide field of view based on substantially all of the thermal image data from the pixels of the first and second detectors;

an interface circuit adapted to receive and transfer the thermal image data from the first and second infrared cameras to a network; and

a first camera housing at least partially enclosing the first and second infrared cameras and the interface circuit to form a first camera system adapted to couple to the network, wherein a processor coupled to the network may receive the thermal image data from one or more of the first camera systems coupled to the network to display the thermal image data from at least one of the first camera systems.

2. The camera system of claim 1, wherein the thermal image data from the first and second infrared camera comprises uncompressed digital thermal image data.

3. The camera system of claim 1, wherein the first and second field of view are adapted to provide a combined field of view greater than 160°

.

4. The camera system of claim 3, wherein the first and second infrared cameras comprise focal plane arrays having a horizontal field of view at least twice that of its vertical field of view.

5. The camera system of claim 4, wherein the focal plane array format comprises a 320 by 124 format.

6. The camera system of claim 1, wherein the interface circuit transfers the thermal image data to an external device comprising the processor and a display coupled to the processor.

7. The camera system of claim 6, wherein the interface circuit further comprises an Ethernet driver circuit adapted to receive and transfer the thermal image data from the first and second infrared camera to the external device via an Ethernet switch.

8. The camera system of claim 6, wherein the interface circuit transfers the thermal image data from the first and second infrared camera to an external device via a wireless interface.

9. The camera system of claim 1, further comprising an external device, comprising the processor and a display coupled to the processor, adapted to receive the thermal image data from the interface circuit and record and/or display the thermal image data.

10. The camera system of claim 9, wherein the external device is further adapted to display the thermal image data sequentially from each of the first camera systems or as a merged image to form a panoramic view based on the thermal image data from one or more of the first camera systems.

11. The camera system of claim 1, wherein the number of pixels in the horizontal and vertical directions for the first and second detectors are selected to provide the corresponding desired first and second field of views.

12. The camera system of claim 1, further comprising a third infrared camera having a third field of view and adapted to provide thermal image data, wherein the third field of view is less than the first and second field of view.

13. The camera system of claim 12, wherein the third infrared camera is adapted to be mechanically-driven to point at an area of interest within the first and/or second field of view.

14. A method of viewing an area of interest, the method comprising:

providing a first thermal image data covering a first wide field of view from a first camera system, wherein the first wide field of view is based on dimensions of a first detector having a different number of pixels in a horizontal direction relative to a vertical direction to provide the first thermal image data;

providing a second thermal image data covering a second wide field of view from the first camera system, wherein the second wide field of view is based on dimensions of a second detector having a different number of pixels in a horizontal direction relative to a vertical direction to provide the second thermal image data, and wherein the second wide field of view overlaps a portion of the first wide field of view;

transferring the first and second thermal image data from the first camera system along with the first and second thermal image data from at least one other of the first camera systems through a network; and

displaying the first thermal image data and the second thermal image data selectively from one or more of the first camera systems in a separate or panoramic fashion.

15. The method of claim 14, wherein the displaying is adapted to provide a panoramic view of the first and second thermal image data from two or more of the first camera systems within a first portion of a display.

16. The method of claim 14, wherein the first and second wide field of view each comprises a horizontal field of view that is at least twice as large as its vertical field of view.

17. The method of claim 14, wherein the providing for the first thermal image data and the providing for the second thermal image data comprises real-time uncompressed digital thermal image data.

18. The method of claim 14, further comprising providing a third thermal image data covering a third narrow field of view, wherein the third narrow field of view may be directed to a portion of the first or second wide field of view.