Fused lasar range/intensity image display for a human interpretation of lasar data

• US 5,852,492 A
• Filed: 06/07/1996
• Issued: 12/22/1998
• Est. Priority Date: 06/07/1996
• Status: Expired due to Term

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Vought Systems Corp (Martin Marietta Corporation)
• Inventors: Nimblett, Donald W., Jenkins, Gary K., Evans, Bruno J.
• Primary Examiner(s): Hellner, Mark
• Application Number:
  US08/660,443
• Time in Patent Office: 928 Days
• Field of Search: 356/5.04, 342/181, 342/179
• US Class Current: 356/5.04
• CPC Class Codes: G01S 17/10 using transmission of interrupted, pulse-modulated waves determination of distance by phase measurements G01S17/32
• CPC Class Codes: G01S 17/89 for mapping or imaging
• CPC Class Codes: G01S 7/51 Display arrangements

Abstract

A method and apparatus for generating a range image and an intensity image of a target field is disclosed. The range image and the intensity image are fused into a single image that contains range and intensity information. In one embodiment, only a single range band is illuminated with colors in the fused image. This range band can be scrolled throughout the fused image to detect three dimensional features more clearly.

Claims

1. A method of generating target information, the method comprising the steps of:

(a) generating a three-dimensional image;

(b) generating a two-dimensional image;

(c) combining the three-dimensional image and the two-dimensional image to generate a fused image; and

(d) scrolling the three-dimensional image through the two-dimensional image.

2. A method of generating target information, the method comprising the steps of:

(a) generating a three-dimensional image;

(b) generating a two-dimensional image;

(c) combining the three-dimensional image and the two-dimensional image to generate a fused image; and

(e) scrolling the three-dimensional image through the two-dimensional image,

wherein the three-dimensional image is displayed as a color band in the fused image.

3. In a LADAR system adapted to generate a three-dimensional range image and a two-dimensional intensity image, the improvement comprising:

means for combining the three-dimensional range image and the two-dimensional intensity image into a fused image; and

means for scrolling the three-dimensional range image through the two-dimensional intensity image.

4. A method of generating target information, the method comprising the steps of:

(a) generating a three-dimensional range image;

(b) generating a two-dimensional intensity image;

(c) combining the three-dimensional range image and the two-dimensional intensity image to generate a fused image; and

(d) scrolling the three-dimensional range image through the two-dimensional intensity image.

5. A method of generating target information, the method comprising the steps of:

(a) generating a three-dimensional range image;

(b) generating a two-dimensional intensity image;

(c) combining the three-dimensional range image and the two-dimensional intensity image to generate a fused image; and

(d) scrolling the three-dimensional range image through the two-dimensional intensity image;

wherein the three-dimensional range image is displayed as a color band when the three-dimensional range image is scrolled through the two-dimensional intensity image, and

wherein the three-dimensional range image displayed at a given time as the color band in the fused image corresponds to an interval of ranges, and colors in the color band indicate respective ranges within the interval of ranges.

6. An apparatus for generating target information, the apparatus comprising:

means for generating a three-dimensional range image;

means for generating a two-dimensional intensity image;

means for combining the three-dimensional range image and the two-dimensional intensity image to generate a fused image; and

means for scrolling the three-dimensional range image through the two-dimensional intensity image.

7. A method of generating target information, the method comprising the steps of:

(a) generating a range image wherein each pixel has an x, y, and z value;

(b) generating an intensity image;

(c) combining the range image wherein each pixel has an x, y, and z value with the intensity image to generate a fused image; and

(d) scrolling the range image through the intensity image.

8. A method of generating target information, the method comprising the steps of:

(a) generating a range image wherein each pixel has an x, y, and z value;

(b) generating a two-dimensional intensity image;

(c) combining the range image wherein each pixel has an x, y, and z value with the two-dimensional intensity image to generate a fused image;

(d) scrolling the range image through the two-dimensional intensity image; and

(e) displaying the range image as a color band when the range image is scrolled through the two-dimensional intensity image wherein the range image displayed at a given time as the color band in the fused image corresponds to an interval of ranges, and colors in the color band indicate respective ranges within the interval of ranges.

9. An apparatus for generating target information, the apparatus comprising:

means for generating an image wherein each pixel has an x, y, and z value;

means for generating a two-dimensional intensity image;

means for combining the image wherein each pixel has an x, y, and z value with the two-dimensional intensity image to generate a fused image; and

means for scrolling the image wherein each pixel has an x, y, and z value through the two-dimensional intensity image.

10. A method for collecting and displaying target information comprising the steps of:

scanning a target field;

collecting range data and reflectivity data for each location in the target field;

generating a three-dimensional image from the range data;

generating a two-dimensional image from the reflectivity data;

combining the three-dimensional image and the two-dimensional image to form a fused image of the target field; and

scrolling the three-dimensional image through the two-dimensional image.

11. A method for collecting and displaying target information comprising the steps of:

scanning a target field;

collecting range data and reflectivity data for each location in the target field;

generating a three-dimensional image from the range data;

generating a two-dimensional image from the reflectivity data;

combining the three-dimensional image and the two-dimensional image to form a fused image of the target field;

scrolling the three-dimensional image through the two-dimensional image; and

displaying the three-dimensional image as a color band when the three-dimensional image is scrolled through the two-dimensional image and wherein the three-dimensional image displayed at a given time as the color band in the fused image corresponds to an interval of ranges, and colors in the color band indicate respective ranges within the interval of ranges.