Altitude detection by use of planar approximation of a region of

Details Altitude detection by use of planar approximation of a region of Altitude detection by use of planar approximation of a region of

1999-02-09

2000-11-14

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Aeronautical vehicle

348117, G05D 100

Patent

active

061482501

ABSTRACT:
A three-dimensional image of a ground surface taken by a stereoscopic camera is converted to a distance image in a stereoscopic processing section. In an altitude calculating section, after peculiar points contained in the distance image are deleted and further the lens distortion is deleted from the distance image, the distance image is transferred to a real space coordinate. Then, an equation approximating to a plane is obtained from data of the distance image and a length of a perpendicular line to the plane is calculated as a ground altitude.

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