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"A basic image similarity-based method consists of a transformation model, which is applied to reference image coordinates to locate their corresponding coordinates in the target image space"

-> i thougt the transformation is applied to the target image and the reference image is unchanged ...

Reply: Although there are some individuals/systems who take the approach of applying transformations to the target image, I believe that it is generally preferred to do so to the reference image. Transformations are lossy (there is information lost in the process) and reference images can often have an order of magnitude more information given their significantly higher resolution. Therefore it is preferable to not further degrade the target image information by applying a transformation to it but rather to the reference image which may result in a transformation path that does not degrade the information in the target image at all. [Disclaimer: I am just starting to investigate the algorithms involved so this information may be inaccurate - please correct me as needed.]Gfariello19:37, 18 February 2007 (UTC)[reply]

The first sentence should contain the word "align" or "alignment"

The author gives cross-correlation and mutual information as examples of similarity-based methods. If I recall correctly, these examples are also sometimes referred to as template matching registration algorithms. Is this the case, or is my memory muddled?Lemasterda19:35, 3 October 2007 (UTC)[reply]

I cleaned-up the references with some wikipedia guidance to use in-line references. However, the article is still woefully lacking in citations. I'm not sure what among the external links should really be citaitons or not.

I also added a section on uncertainty analysis since that's what I'm really interested in. If there is a more appropriate place or if there are better references for that, please add away....ComputerScience101 (talk)18:51, 11 March 2009 (UTC)[reply]

I added a reference to Wohlberg's paper on log polar registration.Ckelloug (talk)—Precedingundated comment added03:03, 12 February 2013 (UTC)[reply]

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