Editing Image registration (section)

{{Short description|Mapping of data into a single system}}
{{Confused|Printing registration}}
[[Image:Registrator Demo2.png|thumb|right|Registering and summing multiple exposures of the same scene improve signal to noise ratio, allowing one to see things previously impossible to see. In this picture, the distant Alps are made visible, although they are tens of kilometers into the haze.]]

'''Image registration''' is the process of transforming different sets of data into one coordinate system. Data may be multiple photographs, data from different sensors, times, depths, or viewpoints.<ref>[http://portal.acm.org/citation.cfm?id=146374 Lisa Gottesfeld Brown, A survey of image registration techniques (''abstract''), ACM Computing Surveys archive, volume 24, issue 4, December 1992), pages 325 - 376]</ref> It is used in [[computer vision]], [[medical imaging]],<ref>[http://www.nature.com/nmeth/journal/v8/n6/full/nmeth.1602.html biological imaging and brain mapping]</ref> military [[automatic target recognition]], and compiling and analyzing images and data from satellites. Registration is necessary in order to be able to compare or integrate the data obtained from these different measurements.