According to {TAIL ~ the invention}, {HEAD ~ the 3 D machine vision obstacle detection apparatus} includes an image acquisition device such as two or more video cameras, or digital cameras, arranged to view a monitored scene stereoscopically 
According to { TAIL ~ the invention } , { HEAD ~ the 3 D machine vision obstacle detection apparatus } includes an image acquisition device such as two or more video cameras , or digital cameras , arranged to view a monitored scene stereoscopically
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