Infrared camera systems and methods for maritime applications

• US 8,659,661 B2
• Filed: 02/07/2013
• Issued: 02/25/2014
• Est. Priority Date: 11/28/2007
• Status: Active Grant

• Current Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Original Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Inventors: Frank, Jeffrey D., Richardson, Patrick B., Woolaway, James T., Richards, Austin A., Hgasten, Nicholas
• Primary Examiner(s): LAZARO, DAVID R
• Application Number:
  US13/761,803
• Publication Number:
  US 20130147964A1
• Time in Patent Office: 383 Days
• Field of Search: 348/143, 348/148, 348/159, 348/164, 701/21
• US Class Current: 348/148
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/10048 Infrared image
• CPC Class Codes: G06T 2207/20061 Hough transform
• CPC Class Codes: G06T 2207/30196 Human being; Person
• CPC Class Codes: G06T 2207/30252 Vehicle exterior; Vicinity of vehicle
• CPC Class Codes: G06T 5/90 Dynamic range modification of images or parts thereof
• CPC Class Codes: G06T 7/00 Image analysis
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: G06V 10/143 Sensing or illuminating at different wavelengths
• CPC Class Codes: G06V 40/10 Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
• CPC Class Codes: G08B 21/08 responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
• CPC Class Codes: H04N 23/20 for generating image signals from infrared radiation only
• 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 disclosed herein provide for some embodiments infrared camera systems for maritime applications. For example in one embodiment, a watercraft includes a plurality of image capture components coupled to the watercraft to capture infrared images around at least a substantial portion of a perimeter of the watercraft; a memory component adapted to store the captured infrared images; a processing component adapted to process the captured infrared images according to a man overboard mode of operation to provide processed infrared images and determine if a person falls from the watercraft; and a display component adapted to display the processed infrared images.

Claims

1. A watercraft comprising:

a plurality of image capture components coupled to the watercraft to capture infrared images around at least a portion of a perimeter of the watercraft;

a memory component adapted to store the captured infrared images;

a processing component adapted to process the captured infrared images according to a man overboard mode of operation to provide processed infrared images and to determine if a person is falling or has fallen from the watercraft; and

a display component adapted to display the processed infrared images.

2. The watercraft of claim 1, wherein the man overboard mode of operation causes the processing component to position the plurality of image capture components to resolve a horizon in the captured infrared images.

3. The watercraft of claim 1, wherein the man overboard mode of operation causes the processing component to map a dynamic range of the processed infrared images to fit the display component.

4. The watercraft of claim 1, wherein the processing component is further adapted to process the captured infrared images according to additional modes of operation.

5. The watercraft of claim 4 wherein the additional modes of operation include a night docking mode, a night cruising mode, and one or a combination of a day cruising mode, a hazy conditions mode, and a shoreline mode.

6. An infrared imaging system for a watercraft, the system comprising:

at least one infrared camera adaptable to monitor a portion of a perimeter of the watercraft by capturing infrared images of the portion of the perimeter; and

a processing component configured to operate the at least one infrared camera in a man overboard mode of operation and to process the captured infrared images using image processing operations that are specific to the man overboard mode of operation and that are different from additional image processing operations for other modes of operation.

7. The infrared imaging system of claim 6, wherein the processing component is configured to operate the at least one infrared camera in the man overboard mode of operation by moving the at least one infrared camera when the man overboard mode of operation is selected by a user.

8. The infrared imaging system of claim 7, wherein the image processing operations that are specific to the man overboard mode of operation comprise an operation for resolving a horizon using the captured infrared images.

9. The infrared imaging system of claim 8, wherein the processing component is configured to move the at least one infrared camera when the man overboard mode of operation is selected by the user by moving the at least one infrared camera so that the horizon is located at an upper part of a field of view of the at least on infrared camera.

10. The infrared imaging system of claim 9, wherein the image processing operations that are specific to the man overboard mode of operation further comprise an operation for high pass filtering the captured infrared images.

11. The infrared imaging system of claim 10, further comprising a display component adapted to display the captured infrared images, wherein the image processing operations that are specific to the man overboard mode of operation comprise an operation for mapping a dynamic range of an output image to fit the display component.

12. The infrared imaging system of claim 6, wherein the other modes of operation include at least one of a night cruising mode of operation, a night docking mode of operation, a day cruising mode of operation, a hazy conditions mode of operation, and a shoreline mode of operation.

13. The infrared imaging system of claim 12, wherein the additional image processing operations include an operation for separating an image into a detailed part and a background part.

14. The infrared imaging system of claim 6, further comprising a control component adapted to provide a plurality of selectable processing modes that include the other modes of operation to a user.

15. A method comprising:

obtaining a plurality of infrared images around at least a portion of a perimeter of a watercraft;

providing a plurality of selectable processing modes for the plurality of infrared images, wherein the plurality of selectable processing modes include a man overboard mode and at least one additional mode;

receiving a selection of one of the plurality of selectable processing modes; and

processing the plurality of infrared images according to the selected mode to provide a plurality of processed infrared images.

16. The method of claim 15, wherein the receiving of the selection of the one of the plurality of selectable processing modes comprises receiving a selection of the man overboard mode.

17. The method of claim 16, wherein the processing of the plurality of infrared images according to the selected mode comprises processing the plurality of infrared images according to the selected man overboard mode.

18. The method of claim 15, wherein the at least one additional mode includes a night cruising mode and a day cruising mode and wherein the processing of the plurality of infrared images according to the selected mode comprises:

in response to a selection of the at least one additional mode;

separating at least one of the plurality of infrared images into a detailed part and a background part;

processing the background part; and

adding the processed background part to the detailed part.

19. The method of claim 15, wherein the at least one additional mode includes a hazy conditions mode and wherein the processing of the plurality of infrared images according to the selected mode comprises:

in response to a selection of the hazy conditions mode, applying a low pass filter to at least one of the plurality of infrared images.

20. The method of claim 15, wherein the at least one additional mode includes a shoreline mode wherein the processing of the plurality of infrared images according to the selected mode comprises:

in response to a selection of the shoreline mode, resolving the shoreline using the plurality of infrared images.