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[filmscanners] Re: Foveon


  • To: lexa@www.lexa.ru
  • Subject: [filmscanners] Re: Foveon
  • From: "Julian Vrieslander" <julianv@mindspring.com>
  • Date: Mon, 11 Feb 2002 14:44:12 -0500
  • Unsubscribe: mailto:listserver@halftone.co.uk

On 2/11/02 12:47 PM, derek_c@cix.co.uk <derek_c@cix.co.uk>, wrote:

>Nope, this is a brand new sensor that uses R G and B elements at different
>depths in the silicon.

That is the breakthrough in the Foveon technology - each sensor element
has three layers, and can measure R, G, and B.  With the current
generation of CCD and CMOS detectors, each sensor element measures only
one primary color.  The Foveon device has a one-to-one mapping of sensor
elements to pixels, whereas other devices have to compute each pixel
value from the primary data in several sensor elements (usually 1 red, 1
blue, and 2 green).  With these conventional detectors, the digicam
firmware has to compute the right pixel colors, cancel Moire effects,
etc.  The Foveon folks claim that their system has the potential to
produce better color, better resolution, and at lower cost.  Time will
tell if they are right.

They have some interesting graphics at their web site:

http://www.foveon.com/X3_tech.html

--
Julian Vrieslander <mailto:julianv@mindspring.com>

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