Well, their next project might be a "microlens insert" that will
produce a hologram of the entire field of view, focus on any object
therein and rotate 360 degrees on any object within the field of view
with everything else out of focus! The in-camera software would
probably require internal ? gig memory.
In the 60's Tukey spent a day or so a week at Princeton, a day or so
at Bell Labs, and who knows where he spent the rest of his time,
possibly at the DOD. He was a towering figure on campus. I don't
know who Cooley was.
Roger Eichhorn
eichhorn@xxxxxx
On 25 Nov 2005, at 19:11, karl shah-jenner wrote:
----- Original Message -----
From: "Roger Eichhorn"
: Indeed it does explain everything. I suppose they're using an
FFT on
: the digitized data. I wish I knew how to do it!
.. then we could pop a microlens array between the lens and the
*film* in a
film camera, scan the resulting image and perform the same trick
with film
media ?
that'd be nice!
http://en.wikipedia.org/wiki/Fast_Fourier_transform
fft info - I like this explanation:
"By far the most common FFT is the Cooley-Tukey algorithm. This is
a divide
and conquer algorithm that recursively breaks down a DFT of any
composite
size n = n1n2 into many smaller DFTs of sizes n1 and n2, along with
O(n)
multiplications by complex roots of unity traditionally called twiddle
factors"
k
