Not at all, it would be no different than any 10.2MP Bayer,
A 10MP bayer would have 10 million spatially separated samples to
work with.
The SD9 only has 3.5 million spatial samples. There is
no SW magic than can "unstack" the sensors to make them detect more
spatial information.
Actually, there is, but it involves exploiting CA (chromatic
aberration) and the end result is that you have bands of differing
resolutions.
I use the same type of math in my own Bayer demosaic algorithms,
and will soon be applying it to an SD-9 color interpolation
algorithm.
The way the Foveon sensor works, CA manifests as areas where colors
may be totally out of gamut, and interpolated to very strange
values. I'm working to fix that.
Further, you might be surprised,
I'd be extremely surprised. Over 50 years of science and
engineering knowledge would be obsolete. New textbooks would have
to be written.
Actually, there are ways of doing this that fall within current
texts. Imagine the red, green, and blue are out of registration by
1 full pixel in the corners of the image (not hard to imagine with
many of the wider range zooms). Now, lets make the CA nice and
linear, so that at a/2 the corner radius the misalognment is 1/2
pixel. Then an algorithm that does radial interpolation to resize
the red, green and blue layers back into alighnment will have a
full pizel offset in the corners, which won't increase resolution,
but should eliminate a 1 pixel color fringe. And, in the 1/2 pixel
"ring" there will be an effective doubling of resolution.
you might be able to obtain a stunning image this way by
modeling the falloff rate considering many adjacent pixels.
That buys you exactly zero additional spatial information. Please,
please do some more reading on sampling theory before hypothesizing
magic algorithms.
SG10 definitely needs to do that. You don't have to be out on the
cutting edge like me to realize how many errors are in his
arguments.
I've clipped the stuff about advertising claims. As has been
pointed out, the JCII has strict rules on how these things are
defined, and the SD9 can't be marketed in 1/2 the world as anything
other than a 3.4 MP camera. Sigma would look outrageously bad if
they marketed it as different resolutions in different countries.
And, on more time, according to well established criteria of
information theory (and even by Foveon's own admission) the Foveon
sensor has a 1.7x advantage in pixel density over a Bayer. So you
can reasonably compare a 3.4MP Foveon to a 5.8MP Bayer. That it
holds its own so well agains the 6MP Bayer cameras shows that Bayer
algorithms aren't as mature as they should be at this point in the
game. There is no way you can compare a 3.4MP Foveon to a 10MP
Bayer.
--
Ciao!
Joe
