Rob Studdert's fisheye pictures and the rectilinear derivations from them at
http://www.ozemail.com.au/~distudio/fisheye_to_rectilinear.html
are interesting, but is there a better algorithm? If you look at "eddie" in
the plane, the rectilinear version seems even more distorted and less
pleasing than the original. I tried to redimension it but no improvement;
his right shoulder is a mess. However, just taking the original fisheye
picture and stretching it a little seemed to look better than either version
on the site.
So...which of these views represents reality?
Then, of course: reality? Can't get that with a 2D representation of a 3D
world. How about stereo fisheye pictures? Anyone ever done that?
J. John Cohen, M.D., Ph.D.
Department of Immunology, B-184
University of Colorado Medical School
Denver, CO 80262, USA
phone: +1 303 315-8898
fax: +1 303 315-5967
[EMAIL PROTECTED]
-----Original Message-----
From: Rob Studdert [mailto:[EMAIL PROTECTED]]
Sent: Monday, 05 March, 2001 16:17
To: [EMAIL PROTECTED]
Subject: RE: Fish eye lens
On 5 Mar 2001, at 18:11, Cyril MARION wrote:
> I'm seeking a fish-eye to shoot high-quality panormas.
> As the feeling from the list is good towards this Russian stuff, my choice
> is difficult to make...
> - 2650FF for a 2nd hand genuine PENTAX 17mm f/4.0 or
> - 1300FF for a new ZENITAR 16mm f/2.8
Hi Cyril,
If you intend to re-map the fisheye images into rectilinear projections and
then use a program to stitch the images into a continuous cylindrical
projection you will want to use a good lens. Several factors are key,
firstly
how well the lens fits the fisheye projection ideal and then how well the
lens
is corrected for optical aberrations ie colour separation towards the
peripheries of the projection. For more information see my page:
http://www.ozemail.com.au/~distudio/fisheye_to_rectilinear.html
Cheers,
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
Fax +61-2-9554-9259
UTC(GMT) +10 Hours
[EMAIL PROTECTED]
http://www.ozemail.com.au/~distudio/publications.html
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