For me, the big question with programs like this is the quality of the
interpolation algorithms. Mediocre algorithms will correct the perspective
distortion, but introduce interpolation artifacts.
I've never seen any studies on the quality of various tools for this purpose,
although the author of Panorama Tools did have an article on general
interpolation algorithms and samples of various types on his site at one time.
Skip
>
>Subject: [OM] Perspective correction
> From: "Ian Manners" <om@xxxxxxxxxxxxx>
> Date: Mon, 23 Feb 2004 18:38:23 +1100 (EDT)
> To: "olympus@xxxxxxxxxx" <olympus@xxxxxxxxxx>
>
>
>Hi everyone
>
>Came across this rather neat Java program :-
>
>http://www.ifp.uni-stuttgart.de/private/Boehm/RectifyIt/intro.html
>
>"Rectify It" is a program to remove perspective distortions from an image.
>That is, the orthogonal angles of a rectangular figure are regenerated from an
>image. The program does not produce ortho images however, as it does not
>preserve the width to height ratio of an object. It has been specifically
>designed to rectify images of building facades to be later on mapped to 3D
>building models.
>
>Cheers
>Ian Manners
>http://www.comkal.net/photo/
>
>
>
>The olympus mailinglist olympus@xxxxxxxxxx
>To unsubscribe: mailto:olympus-request@xxxxxxxxxx?subject=unsubscribe
>
>To contact the list admins: mailto:olympusadmins@xxxxxxxxxx?subject="Olympus
>List Problem"
The olympus mailinglist olympus@xxxxxxxxxx
To unsubscribe: mailto:olympus-request@xxxxxxxxxx?subject=unsubscribe
To contact the list admins: mailto:olympusadmins@xxxxxxxxxx?subject="Olympus
List Problem"
|