Image analysis – Histogram processing – For setting a threshold
Patent
1991-03-04
1992-11-17
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 68, 2502081, 73167, 359861, G06K 920
Patent
active
051649985
ABSTRACT:
Apparatus systems and methods for image analysis, including identification, location and analysis of both patterns of distribution of target images and tracking of a high speed target image. An example is scanning shotgun targets. A target, representing a field of view having multiple images distributed therein, is wrapped around a transparent drum illuminated from the interior, rotating the drum in front of a high aspect ratio slit, optically folding the slit aperture into a series of adjacent overlapping zones the aggregate aspect ratio of which is low, scanning the moving target with a video camera, digitizing the camera image signals, electronically processing the signals to identify bright image areas (e.g. shot holes), processing the information to determine the image location and analyzing the location information to determine image distribution patterns. The system and methods are applicable to a wide variety of image detection and analysis including: astronomy; satellite photos of sites; gatherings of people, things, animals, crops in fields; and movement of objects through the field of view such as objects on a conveyor belt, traffic, ballistic objects, and the like.
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Boudreau Leo H.
Dulin Jacques M.
Feix Thomas C.
Fox David
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