Television – Special applications – Navigation
Patent
1995-09-06
1998-01-27
Coles, Sr., Edward L.
Television
Special applications
Navigation
348144, 348146, 250235, 250236, H04N 718, H04N 947
Patent
active
057126780
ABSTRACT:
A method and apparatus are disclosed for scanning a surface of an object, transversely to a direction of motion. A scanner is provided for flying over the object at a flight altitude and flight velocity, having a system focal length, a scanning element rotating at a rotation speed which scans a surface over a scanning angle and a detector row, arranged at right angles to the scanning direction. A detector row is provided with a plurality of equal size individual detectors, which are capable of generating fundamental object pixels of a size which depends upon the distance from the object up to a maximum scanning distance. A standard object pixel, of a size corresponding to a fundamental object pixel, is driven at the maximum scanning distance. For each scanning sweep, via a sampling process, a uniform grid is formed which is composed of standard object pixels of a size corresponding to a fundamental object pixel at the maximum scanning distance in several lines and without gaps and/or overlaps. Uniform grids of consecutive sweeps have no gaps and overlaps between each other. A sampling process is performed for forming a uniform grid, independent of an actual flight altitude, and an actual flight velocity for each scanning sweep. The system focal length and the rotational speed of the scanner are controlled as functions of an actual flight altitude and flight velocity so that uniform grids, of consecutive scanning sweeps, have no gaps and/or overlaps between each other.
REFERENCES:
patent: 2967211 (1961-01-01), Blackstone et al.
patent: 3019292 (1962-01-01), John
patent: 3294903 (1966-12-01), Goldmark et al.
patent: 3719775 (1973-03-01), Takaoka et al.
patent: 3808361 (1974-04-01), Hofmann
patent: 4231062 (1980-10-01), Stewich
patent: 4814607 (1989-03-01), Hofmann
patent: 5043924 (1991-08-01), Hofmann
Coles Sr. Edward L.
Lee Thomas D.
Messerschmitt Bolkow Blohm GmbH
LandOfFree
Method and apparatus for scanning a terrain surface does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for scanning a terrain surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for scanning a terrain surface will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-346055