Method and apparatus for scanning an object

Details Method and apparatus for scanning an object Method and apparatus for scanning an object

1988-09-22

1991-08-27

Smith, Jerry

Boots, shoes, and leggings

36457102, 250558, G06F 1562

Patent

active

050439243

ABSTRACT:
The invention is directed to a method and an apparatus for scanning the terrain surface and other objects transversely to the flight direction or direction of motion of the scanner with a detector row arranged perpendicularly to the direction of scanning and containing several individual detectors of equal size, wherein the terrain- or object strip to be scanned is divided into various distance ranges, within which the fundamental detector signals within the detector row as well as of consecutive exposure periods are collated respectively in such a way by averaging, that the collated individual signals form or cover respectively one object pixel of approximately constant magnitude independent of the scanning distance, and wherein these object pixels stand always at right angles with respect to the scanning beam and where each scanning sweep produces a terrain- or object strip with approximately equal object pixel size as well as constant object pixel number along the width and length of the scanned strip. This method and apparatus eliminates the known deficiency of opto-mechanical scanners, whose scanned strips have changeable strip widths as a function of the scanning distance.

REFERENCES:
patent: 3901595 (1975-08-01), Heleva et al.
patent: 3973243 (1976-08-01), Whiteside et al.
patent: 4669048 (1987-05-01), Ackermann et al.
patent: 4724526 (1988-02-01), Cole et al.

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