From: "Thommes " <>
Newsgroups: comp.soft-sys.matlab
Subject: Registering CT images
Date: Thu, 8 Apr 2010 21:59:26 +0000 (UTC)
Organization: The MathWorks, Inc.
Lines: 7
Message-ID: <hpljju$sb6$>
Reply-To: "Thommes " <>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Trace: 1270763966 29030 (8 Apr 2010 21:59:26 GMT)
NNTP-Posting-Date: Thu, 8 Apr 2010 21:59:26 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 2305338
Xref: comp.soft-sys.matlab:624841

I need some help here:

I have been trying to register two CT images of the same anatomic region which are reconstructed with different fields of view. There is a certain anatomic structure visible in both images, but displayed at different positions in different scales. I have defined a set of control points within the anatomic structure in both images and used cp2tform and imtransform to align both images. However, the resulting aligned image is obviously of different size than the base image and the anatomic structure is still at a different position, although now roughly the same size.
How can I create an aligned image with the same matrix as the base image, where the control points are at the same position as in the base image?

Thank you very much!