Image analysis – Applications – Vehicle or traffic control
Patent
1994-09-01
1997-11-11
Boudreau, Leo
Image analysis
Applications
Vehicle or traffic control
382190, 340936, 348 25, 348577, 348700, G06K 900, G08G 101, H04N 700, H04N 514
Patent
active
056872496
ABSTRACT:
The present invention is intended to reconstruct or acquire the shape of an object without rotating it. A TV camera with a fish-eye lens is used to conduct the image-sensing of a vehicle as a moving object over a certain section of its path of travel and a background image is subtracted from each captured image to obtain a silhouette of the vehicle. The loci of movement of the vehicle's tires in each image are calculated and used to calculate the positions of the viewpoint of the TV camera and the vehicle relative to each other in each image. The shape of the vehicle is reconstructed by projecting the silhouette for each captured image into a projection space while holding the viewpoint of the TV camera and the vehicle at the calculated relative positions.
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Boudreau Leo
Davis Monica S.
Nippon Telephone and Telegraph
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