Method and apparatus for determining the image transfer quality

Details Method and apparatus for determining the image transfer quality Method and apparatus for determining the image transfer quality

1984-02-21

1986-12-09

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358111, H04N 1700

Patent

active

046283609

ABSTRACT:
A method of, and apparatus for, determining the image transfer quality of an imaging system on the basis of the signal-to-noise ratio. A reference pattern comprising at least two different portions is presented to an input of the system. One portion provides a television output signal which is a measure for the noise, and another portion provides a television output signal comprising the same amount of noise in a combination with an image signal component. The television output signals are compared to determine the signal-to-noise ratio.

REFERENCES:
patent: 3683282 (1972-08-01), D'Amato et al.
patent: 3825835 (1974-07-01), Hammett et al.
patent: 3875328 (1975-04-01), Gibson et al.
patent: 3995105 (1976-11-01), Krivosheer et al.
patent: 4170025 (1979-10-01), Benkley et al.
patent: 4172263 (1979-10-01), Tenten
patent: 4246608 (1981-01-01), Baker
"A New Random Noise Measuring Instrument for T.V. Signals;" 76, (1967.03), 180/182; Yamaguchi.

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