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US 2016/0286141 A1Published application
Altimeter using imaging capability
AssigneeRosemount Aerospace Inc.
InventorTodd A. Ell
Life of this patent
Estimating the term…
Abstract
An altimeter includes a laser projector for projecting a pattern onto a surface and a camera for viewing the projected pattern. An image processor is operatively connected to the laser projector and camera for determining distance to the surface based on cross-correlation of the projected and imaged patterns. The camera can be a short wave infrared (SWIR) camera. The projected pattern can be a pseudo-random, fixed pattern.
Claims14
An altimeter comprising:
- a laser projector for projecting a pattern onto a surface;
- a camera for viewing the projected pattern;
- and
- an image processor operatively connected to the laser projector and camera for determining distance to the surface based on cross-correlation of the projected and imaged patterns.
1 more element
A method for determining distance to a surface, the steps comprising:
- projecting a pattern onto a surface from a laser projector;
- viewing the projected pattern using a camera and storing an imaged pattern;
- and
- cross-correlating the imaged pattern with an expected pattern using an image processor operatively connected to the laser projector and camera.
1 more element
Dependencies are inferred from the claim text.