Stereo door sensor

Details Stereo door sensor Stereo door sensor

2008-07-15

2008-07-15

Mehta, Bhavesh M. (Department: 2624)

Image analysis

Applications

Target tracking or detecting

C382S153000, C382S154000

Reexamination Certificate

active

10388925

ABSTRACT:
A stereo imaging based vision system to monitor the area on the two sides of either a door and control door motion according to the motion of 3D objects in the viewing area. The system 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 the door motion (open, close, stall) based on the various pieces of information generated about the object.

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