logarithmic amplifier question

Michael Hoffberg HOFFBEMG at sterlingdi.com
Wed Feb 4 13:14:34 CLST 1998


Posted to CCD-world:
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The noise characteristics of a CCD camera should follow poisson statistics, that
is the noise should be proportional to the square root of the signal.  

We are characterizing a Kodak DC 210 camera and have observed that the noise is
loosly inversly proportional to the signal.  We suspect that Kodak is using a
log amplifier and I would like to know how this would impact the noise
characteristics of the camera output.

MIKE
 
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