ROBOTIC TOTAL STATION WITH IMAGE-BASED TARGET RE-ACQUISITION
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Mar 15, 2013
filing date -
Mar 15, 2013
priority date (Note) -
Abandoned
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Abstract
A robotic total station includes a camera and a pattern recognition subsystem that automatically determine an azimuth angle to which to direct a laser on the total station for target re-acquisition. The camera records images that scan a search area of interest, and the pattern recognition subsystem processes the images to locate the target in one or more of the images as a predetermined pixel pattern that is based on a distinct characteristic of the target, such as a shape of the target, a color of the target, markings present on the target, and so forth. The subsystem calculates the azimuth angle of the target based on the location of the target in the images, the pointing direction of the camera and the known characteristics of the camera. The robotic total station then rotates to the azimuth angle and directs laser pulses to re-acquire the target.
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