Method of aerial monitoring of forests

• US 20040005085A1
• Filed: 11/06/2002
• Published: 01/08/2004
• Est. Priority Date: 07/04/2002
• Status: Abandoned Application

• Current Assignee: Douglas B. Thompson
• Original Assignee: Douglas B. Thompson
• Inventors: Andersen, Dan Keith
• Application Number:
  US10/289,474
• Publication Number:
  US 20040005085A1
• Time in Patent Office: Days
• US Class Current: 382/109
• CPC Class Codes: G08B 17/005 for forest fires, e.g. detecting fires spread over a large or outdoors area fire fighting forest fires A62C3/02
• CPC Class Codes: G08B 17/125 by using a video camera to detect fire or smoke

Abstract

A method of aerial monitoring of forests. The method includes a step of examining a forest from above with a camera capable of capturing a thermal image. The camera has a resolution of at least 460×460 pixels. The purpose of the monitoring is to determine reflective qualities of trees in the forest, such reflective qualities being indicative of moisture content.

Claims

1. A method of aerial monitoring of forests, comprising the step of:

examining a forest from above with a camera capable of capturing a thermal image, the camera having a resolution of at least 460×

460 pixels, to determine reflective qualities of trees in the forest, said reflective qualities being indicative of moisture content.

2. The method as defined in claim 1, the camera being a dual sensor camera having both a thermal image sensor capable of capturing a thermal image and a daylight image sensor capable of capturing a daylight image, such that the camera contemporaneously takes the thermal image and the daylight image.

3. The method as defined in claim 2, the camera having a daylight image resolution of greater than 440 lines.

4. The method as defined in claim 3, the camera having a daylight image resolution of greater than 700 lines.

5. The method as defined in claim 1, the flight speed being less than 70 nautical miles per hour.

6. The method as defined in claim 5, the flight speed being less than 40 nautical miles per hour.

7. The method as defined in claim 1, the flight altitude being less than 300 feet from vegetation.

8. The method as defined in claim 7, the flight altitude being less than 150 feet from vegetation.

9. The method as defined in claim 1, an optical zoom ratio of at least 7 to 1 being used.

10. The method as defined in claim 9, an optical zoom ratio of at least 14 to 1 being used.

11. A method of aerial monitoring of forests, comprising the step of:

examining a forest from above with a camera capable of capturing a thermal image, the camera having a resolution of at least 460×

460 pixels, to determine reflective qualities of trees in the forest, said reflective qualities being indicative of moisture content, the camera having a daylight image resolution of greater than 440 lines, the flight speed being less than 70 nautical miles per hour, the flight altitude being less than 300 feet from vegetation, and an optical zoom ratio of at least 7 to 1 being used.

12. The method as defined in claim 11, the camera being a dual sensor camera having both a thermal image sensor capable of capturing a thermal image and a daylight image sensor capable of capturing a daylight image, such that the camera contemporaneously takes the thermal image and the daylight image.

13. The method as defined in claim 11, the camera having a daylight image resolution of greater than 700 lines.

14. The method as defined in claim 11, the flight speed being less than 40 nautical miles per hour.

15. The method as defined in claim 11, the flight altitude being less than 150 feet from vegetation.

16. The method as defined in claim 11, an optical zoom ratio of at least 14 to 1 being used.