Infrared camera systems and methods

• US 9,047,745 B2
• Filed: 04/10/2012
• Issued: 06/02/2015
• Est. Priority Date: 11/28/2007
• Status: Active Grant

• Current Assignee: Teledyne FLIR LLC (Teledyne Technologies Incorporated)
• Original Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Inventors: Terre, William A., Frank, Jeffrey D., Woolaway, James T., Richards, Austin A., Richardson, Patrick B., Hgasten, Nicholas
• Primary Examiner(s): Patel, Jay
• Assistant Examiner(s): GEROLEO, FRANCIS
• Application Number:
  US13/443,794
• Publication Number:
  US 20120224063A1
• Time in Patent Office: 1,148 Days
• Field of Search: 348/148, 348/164, 348/169
• US Class Current: 1/1
• CPC Class Codes: B60R 11/04 Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
• CPC Class Codes: G08B 13/1963 Arrangements allowing camera rotation to change view, e.g. pivoting camera, pan-tilt and zoom [PTZ]
• CPC Class Codes: G08B 13/19643 wherein the cameras play different roles, e.g. different resolution, different camera type, master-slave camera
• CPC Class Codes: H04N 23/11 for generating image signals from visible and infrared light wavelengths
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• CPC Class Codes: H04N 23/62 Control of parameters via user interfaces
• CPC Class Codes: H04N 23/635 Region indicators; Field of view indicators
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

Systems and methods disclosed herein provide, for some embodiments, infrared cameras and target position acquisition techniques for various applications. For example, in one embodiment, a system may include a portable imaging/viewing subsystem having a target position finder and may also include a fixed mount camera subsystem having a camera and a camera positioner. A communications link may be configured to communicate a signal from the target position finder to the camera positioner. The signal may be representative of a position of a target being imaged/viewed with the portable imaging/viewing subsystem. The camera positioner may aim the camera toward the target in response to the signal. The target may, for example, be a man overboard. Thus, the system may be useful in search and rescue operations.

Claims

1. A system, comprising:

a fixed mount camera subsystem having a camera, a camera positioner, and a first communications interface;

a portable imaging/viewing subsystem having a target position finder and a second communications interface adapted to establish a communications link with the first communications interface to communicate a signal from the target position finder to the camera positioner, the signal being representative of position information of a target being imaged/viewed with the portable imaging/viewing subsystem;

wherein the fixed mount camera subsystem is configured to aim the camera using the camera positioner toward the target in response to the signal;

wherein the communications link comprises a wired or wireless communications link; and

wherein the portable imaging/viewing subsystem and/or the fixed mount camera subsystem comprises;

a control component adapted to provide a plurality of selectable processing modes to a user, receive a user input corresponding to a user selected processing mode, and generate a control signal indicative of the user selected processing mode, wherein the plurality of selectable processing modes includes a man overboard mode, a night cruising mode, and a day cruising mode; and

a processing component adapted to receive the generated control signal from the control component, process a captured infrared image according to the user selected processing mode, and generate a processed infrared image.

2. The system of claim 1, wherein the portable imaging/viewing subsystem is configured to be handheld, and wherein the fixed mount camera subsystem further comprises a second target position finder, the first communications interface configured to communicate a second signal from the second target position finder through the communications link to the portable imaging/viewing subsystem, with the second signal being representative of position information of a target being imaged with the fixed mount camera subsystem.

3. The system of claim 2, wherein the portable imaging/viewing subsystem comprises a display configured to provide pointing cues to a user based on the second signal received from the fixed mount camera subsystem to assist the user in pointing the portable imaging/viewing subsystem towards the target.

4. The system of claim 1, wherein the portable imaging/viewing subsystem comprises a user actuatable control configured to initiate communication of the signal over the communications link, and wherein the portable imaging/viewing subsystem comprises at least one device selected from the list consisting of a night vision system, a telescope, a pair of binoculars, an infrared camera, and a visible light camera.

5. The system of claim 1, wherein the fixed mount camera subsystem comprises a visible light camera and an infrared camera, and wherein the portable imaging/viewing subsystem comprises a display configured to provide pointing cues to a user based on the second signal received from the fixed mount camera subsystem to assist the user in pointing the portable imaging/viewing subsystem towards the target, with the pointing cues comprising at least one of directional arrows or heading and range cues.

6. The system of claim 1, wherein the target position finder comprises:

a global positioning system (GPS) receiver configured to determine a position of the portable imaging/viewing subsystem;

a compass configured to provide an azimuth from the portable imaging/viewing subsystem to the target; and

a range finder configured to provide a range from the portable imaging/viewing subsystem to the target.

7. The system of claim 1, wherein the camera positioner comprises a pan and tilt drive, wherein the portable imaging/viewing subsystem comprises a memory configured to store information representative of the position of the target, and wherein the portable imaging/viewing subsystem comprises an optical viewfinder and a display to provide a user with a direct optical view of a scene and a generated image view of the scene on the display.

8. The system of claim 1, wherein the communications link is bi-directional and is configured to communicate voice and data.

9. The system of claim 8, wherein at least one of the portable imaging/viewing subsystem and the fixed mount camera subsystem further comprises:

an image capture component adapted to capture the infrared image;

and

a display component adapted to display the processed infrared image.

10. A vehicle comprising the system of claim 1.

11. An infrared camera system, comprising:

an infrared camera having an image capture component adapted to capture an infrared image of a scene;

a target position finder adapted to obtain target position information for a target within the scene;

a communications interface configured to communicate a signal from the infrared camera based on information from the target position finder, the signal being representative of position information for the target being viewed with the infrared camera, and wherein the communications interface is further configured to receive target position information from another device;

a control component adapted to provide selectable processing modes to a user, receive a user input corresponding to a user selected processing mode, and generate a control signal indicative of the user selected processing mode, wherein the selectable processing modes includes a processing of target position information received via the communications interface and a processing of the position information from the target position finder to provide via the communications interface;

a processing component adapted to receive the generated control signal from the control component and perform the selected processing function based on the user selected processing mode;

wherein the control component is adapted to provide a plurality of selectable processing modes to the user, receive a second user input corresponding to a second user selected processing mode, and generate a second control signal indicative of the second user selected processing mode, wherein the plurality of selectable processing modes includes a night cruising mode, a day cruising mode, and a man overboard mode; and

wherein the processing component is adapted to receive the generated second control signal from the control component, process the captured infrared image according to the second user selected processing mode, and generate a processed infrared image.

12. The infrared camera system of claim 11, further comprising:

a display component adapted to display the captured infrared image; and

wherein the processing component is adapted to generate pointing cues to the user based on the target position information received via the communications interface to provide on the display to assist the user in pointing the infrared camera towards the target.

13. The infrared camera system of claim 12, wherein:

the display component is adapted to display the processed infrared image.

14. The infrared camera system of claim 11, further comprising:

a display component adapted to display the captured infrared image; and

a positioner configured to point the infrared camera toward the target based on target position information received via the communications interface;

wherein the infrared camera system is configured to automatically identify the target, display a target designation indicia associated with the target on the display, and control pan/tilt via the positioner to automatically track the target.

15. The infrared camera system of claim 14, wherein the target designation indicia comprises a square, a crosshair, and/or an oval to identify the target on the display, and wherein the target is identified as a hottest object in the captured infrared image.

16. A method, comprising:

capturing an infrared image of a target within a field of view of a first infrared camera;

determining position information of the target in response to a user command;

storing the position information of the target within the infrared camera;

communicating wirelessly the position information of the target to a remote infrared camera to assist the remote infrared camera in pointing to the target;

providing a plurality of selectable processing modes for a user of the infrared camera, wherein the plurality of selectable processing modes includes a night docking mode, a night cruising mode, and a man overboard mode;

receiving a user input corresponding to a user selected processing mode;

processing the captured infrared image according to the user selected processing mode; and

generating a processed infrared image.

17. The method of claim 16, further comprising:

receiving, by the infrared camera, position information of the target;

generating pointing cues on a display of the infrared camera to assist a user in pointing the infrared camera towards the target;

pointing a searchlight at the target based on the position information; and

wherein the target is an object in water proximate to a watercraft.

18. The method of claim 16, further comprising

displaying the processed infrared image.

19. The method of claim 16, wherein the remote infrared camera is a fixed mount camera subsystem and the infrared camera is a portable imaging/viewing subsystem, and wherein the method further comprises aiming the fixed mount camera subsystem toward the target based on the position information received from the infrared camera.

20. A system configured to perform the method of claim 16.