Method and apparatus for filtering reflections from direct image

Details Method and apparatus for filtering reflections from direct image Method and apparatus for filtering reflections from direct image

1985-08-30

1988-12-06

Smith, Jerry

Boots, shoes, and leggings

364513, 36442402, 358101, 358103, 901 47, H04N 718

Patent

active

047899409

ABSTRACT:
A visual navigation system that rejects reflected images navigates an electrical controllable apparatus such as a mobile robot. The mobile robot is fitted with a minimum of three navigation beacons which emit a light visible to overhead television cameras. The beacons area arranged so as to form a triangle. The shape and the dimension of the triangular pattern are measured and stored in a memory unit within the visual navigation system, and when a reflected image is received it will be characterized by a different angle and thus the vision navigation system is able to distinguish the reflected image from the primary image of the mobile robot.

REFERENCES:
patent: 4488242 (1984-12-01), Tabata et al.
patent: 4604561 (1986-08-01), Kamajima et al.
patent: 4679152 (1987-07-01), Perdue

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