Archived posting to the Leica Users Group, 2001/07/24

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Subject: Re: [Leica] Scanning
From: "Mxsmanic" <mxsmanic@hotmail.com>
Date: Wed, 25 Jul 2001 00:20:45 +0200
References: <NABBLIJOIFAICKBIEPJJGEJFKLAA.darkroom@ix.netcom.com>
 
> Noise is ABSOLUTELY one of the two major
> pieces of calculating dynamic range (the other
> being amplitude of the signal).  If you don't
> know that, I believe you don't really understand
> what actual dynamic range is.

If you recognize noise (or its absence), you can remove it.  This is how the GPS
system manages to receive signals from satellites that are weaker than the noise
surrounding them.  This is also how multipass scanning improves dynamic range
beyond what the nominal S/N ratio would predict.
In reply to: Message from "Austin Franklin" <darkroom@ix.netcom.com> (RE: [Leica] Scanning)