Indeed it does explain everything. I suppose they're using an FFT on
the digitized data. I wish I knew how to do it!
Roger
Roger Eichhorn
eichhorn@xxxxxx
On 25 Nov 2005, at 18:21, lookaround360@xxxxxxxxxxxxxxxxx wrote:
C'mon guys,
Put turn off your iPods and pay attention. :-)
Check out http://graphics.stanford.edu/papers/fourierphoto/
S'planes everything. "...we extract the appropriate 2D slice of the
light field's Fourier transform, and perform an inverse 2D Fourier
transform". Well, duh!
AZ
Build a Lookaround!
The Lookaround Book, 4th ed.
Now an E-book.
http://www.panoramacamera.us
-------- Original Message --------
Subject: RE:
From: Roger Eichhorn <eichhorn@xxxxxx>
Date: Fri, November 25, 2005 6:26 pm
To: List for Photo/Imaging Educators - Professionals - Students
<photoforum@xxxxxxxxxxxxxxxxxxxxxx>
I understand that one can simulate a reduced depth of field in
Photoshop if the photo has a wide depth of field, but how can one
shift a narrow depth of field to an out-of-focus plane in a photo
that has most of the image out of focus? Am I being clear? Clearly
they could fake their results starting with a tack sharp photo, but
that's improbable in a Stanford research program.
Roger Eichhorn
eichhorn@xxxxxx
On 25 Nov 2005, at 13:03, Gregory Fraser wrote:
Curious. They mention increased DOF in the text but showed no
examples of it as far as I could tell. They showed what appeared to
be a shift in focus which is something I too can simulate in
Photoshop, but no increase in DOF. I also didn't see any apparent
modification to the Contax camera. Come to think of it though, they
didn't say that camera was the one they were using. I just assumed
that. Hmmmm........
SCAM! I mean RESEARCH GRANT! I mean SCAM!
Greg
Interesting new digital camera:
http://graphics.stanford.edu/papers/lfcamera/
Wonder how much bigger the files are?
AZ
