Automated minimum resolvable contrast (AMRC) test

Details Automated minimum resolvable contrast (AMRC) test Automated minimum resolvable contrast (AMRC) test

1995-10-27

1998-05-05

Peng, John K.

Television

Monitoring, testing, or measuring

Testing of camera

348175, 348176, 348188, H04N 1700, H04N 1702

Patent

active

057482306

ABSTRACT:
A system for automatically performing the Minimum Resolvable Contrast (MRC) test on an image sensor, such as a TV camera, using a digital signal processor for controlling the testing, wherein an edge response from a square aperture target edge is used to generate a Modulation Transfer Function (MTF) which, in combination with signal and noise data obtained using the square aperture target, provides an input to automated MRC (AMRC) processing equations, from which a value can be calculated for an AMRC output. Alternatively, a slit target may be substituted for the square target aperture when measuring camera MTF.

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"Basics of Detection, Recognition, and Identification in Electro-Optical Formed Imagery", F.A. Rossell et al., of Westinghouse Electric Corp., Proc. SPIE, Sep. 1972, p. 118.

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