Method and Apparatus for Projective Volume Monitoring

摘要

According to one aspect of the teachings presented herein, a projective volume monitoring apparatus is configured to protect against the intrusion of crawling and walking persons into a monitoring zone. The apparatus acquires stereo images of a first monitoring zone that begins at a defined height above a floor and of a second monitoring zone that lies below the first monitoring zone and extends downward to a floor or other surface on which persons may walk or crawl, and processes the stereo images to obtain range pixels. The apparatus detects object intrusions within the first monitoring zone by processing the corresponding range pixels using first object detection parameters that are tuned for the detection of walking or running persons, and detects object intrusions within the second monitoring zone by processing the corresponding range pixels using second object detection parameters that are tuned for the detection of crawling or prone persons.

主权项

1. A method of protecting against the intrusion of crawling and walking persons into a monitoring zone comprising:
acquiring stereo images of a first monitoring zone that begins at a defined height above a floor and of a second monitoring zone that lies below the first monitoring zone and extends downward to a floor or other surface on which persons may walk or crawl; processing the stereo images to obtain range pixels; detecting object intrusions within the first monitoring zone by processing those range pixels corresponding to the first monitoring zone using first object detection parameters that are tuned for the detection of walking or running persons; and detecting object intrusions within the second monitoring zone by processing those range pixels corresponding to the second monitoring zone using second object detection parameters that are tuned for the detection of crawling or prone persons.