Indicia contrast enhancement for vehicle borne infrared vision s

Details Indicia contrast enhancement for vehicle borne infrared vision s Indicia contrast enhancement for vehicle borne infrared vision s

1990-02-20

1991-06-11

Hannaher, Constantine

Radiant energy

Infrared-to-visible imaging

250341, 40582, 350 97, 350109, G06K 900, G06K 1906, G01J 502, G01J 506

Patent

active

050234510

ABSTRACT:
In conjunction with a vehicle borne infrared receiver, sign indicia are defined by infrared reflective surfaces oriented so as to reflect infrared radiation to the receiver from a contrast enhancing source of radiation such as the sky and/or the ground thereby improving the contrast of the sign indicia within the displayed image.

REFERENCES:
patent: 4368979 (1983-01-01), Ruell
patent: 4733079 (1988-03-01), Adams et al.
patent: 4795906 (1989-01-01), Adams et al.

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