Entity detection system and method for monitoring an area
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United States of America Patent
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Nov 29, 2016
Grant Date -
Aug 30, 2012
app pub date -
Dec 13, 2010
filing date -
Dec 14, 2009
priority date (Note) -
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Abstract
An entity detection method and system are provided for monitoring an area. The method comprises providing an illuminated band extending continuously along an extremity of the area; providing an optical detector having an image sensor adapted to capture an image, the illuminated band being viewable by the image sensor and being capturable in the image, a space between the band and the image sensor being part of the area; storing a detection threshold; analyzing the image to detect a discontinuity in the continuous illuminated band apparent on the image, comparing the detected discontinuity to the detection threshold; and indicating a status of the area to be one of a presence of an entity and an absence of the entity based on the comparing.
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