Vision apparatus

Details Vision apparatus Vision apparatus

G - Physics

06

T

G06T 7/20 (2006.01) G01P 3/68 (2006.01) G08G 1/015 (2006.01) G08G 1/04 (2006.01) G06F 15/70 (1990.01)

Patent

CA 2132346

2132346 9319429 PCTABS00026 Vision apparatus is disclosed which comprises at least one single-line scan type line scan camera (30, 40) mounted for viewing a passing object (60, 150). The cameras (30, 40) are connected with electronic means (50) which includes store means (53) which stores signals indicative of the image of the object throughout line scans. The electronic means (50) includes processing means (52) whhich processes the signals indicative of the image of the object together with a signal representative of at least one of the speed or length of the object to determine a length of the object between line scans. That determined length between line scans is provided to image recognition means (100) and utilized with signals in the store means (53) and compared against expected image signature or image attribute signals for recognition. If there is recognition an output is provided representative of a recognised image signature or image attribute. Preferably two cameras (30, 40) are utilized so that one views the object (60, 150) at a different position along its path of travel and where a signal representative of the speed of the object is obtained by comparing particular time instants when a part of the object is detected by each camera.

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