Medical Brain Image registration- A Survey
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Abstract
Image registration is a vital problem in medical imaging. It is a process of aligning two images into a common
coordinate system thus aligning them in order to monitor subtle changes between the two. Radiologists generally use multiple
views of brain images to detect and characterize suspicious regions. When radiologists discover a suspicious lesion in one view,
they try to find a corresponding lesion in the other views. Registration algorithms compute transformations to set correspondence
between the two images the purpose of this paper is to provide a comprehensive review of the existing literature available on
Image registration methods. Most current computer aided detection (CAD) systems differ considerably from radiologists in the
way they use multiple views. These systems do not combine information from available views but instead analyse each view
separately. Given the positive effect of multi-view systems on radiologists' performance we expect that fusion of information from
different views will improve CAD systems as well.
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Keywords: Image registration, co-ordinate system, correspondence
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