Method and apparatus for monitoring a passageway using 3D...

Details Method and apparatus for monitoring a passageway using 3D... Method and apparatus for monitoring a passageway using 3D...

2008-07-08

2008-07-08

Mehta, Bhavesh M (Department: 2624)

Image analysis

Applications

Target tracking or detecting

C382S153000, C382S154000

Reexamination Certificate

active

10749335

ABSTRACT:
A stereo imaging based vision system is calibrated to provide heights above the ground plane for any point in the field of view. Therefore, when any object enters the field of view, it generates interest points called “features,” the heights of which are measured relative to the ground plane. These points are then clustered in 3D space to provide “objects.” These objects are then tracked in multiple frames to provide “trajectories.” Such a system could then control alarm signals or actuate gates or motion control devices, for example, based on the various pieces of information generated about the object.

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