System for making standard deviations in quantum noise constant

Details System for making standard deviations in quantum noise constant System for making standard deviations in quantum noise constant

1986-01-28

1988-11-15

Harkcom, Gary V.

Boots, shoes, and leggings

358166, 358167, 358280, 358111, 382 54, 340728, H04N 521, G09G 300

Patent

active

047854090

ABSTRACT:
A loop is constructed in which an output of a two-dimensional integrator is fed back through an exponential function unit for each pixel of a picture signal, a difference between the output and an input picture signal of the corresponding pixel of a next frame is taken and the difference is input to the corresponding element of the two-dimensional integrator, whereby relative standard deviations of quantum noise of an output picture are made constant at all positions of a screen.

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"Digital Integration", Sklensky and Buchanan, pp. 317, 319, 320.
"Real-Time Radiologic Imaging", Kruger et al., pp. 304-306.

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