Method and a device for eliminating fixed error disturbances in

Details Method and a device for eliminating fixed error disturbances in Method and a device for eliminating fixed error disturbances in

1979-04-18

1981-09-08

Britton, Howard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

250333, 250334, 358113, H04N 514, H04N 534

Patent

active

042888174

ABSTRACT:
A signal processing method for eliminating fixed error sources in the video signal of a pyroelectric vidicon comprising the step of adding the signal value at each point of the pyroelectric plate to previous signal values relating to the same point for forming an integrated or mean value for a great number of signal values at each point and then subtracting the fixed error estimate from the signal values in the latest received video signal. This mean value, if differing from zero, is the estimate of the fixed error at the respective point.

REFERENCES:
patent: 3902011 (1975-08-01), Pieters
patent: 3919473 (1975-11-01), Cotter
patent: 4031394 (1977-06-01), Felix
patent: 4040087 (1977-08-01), Hall
patent: 4069502 (1978-01-01), Nelson
patent: 4095257 (1978-06-01), Back
patent: 4100574 (1978-07-01), Felix
patent: 4164753 (1979-08-01), Metcalf

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