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An experimental comparison of several similarity measures and preprocessing techniques used for the registration of temporally differing images is carried out. It is found that preprocessing of the images via a gradient operator improves the registration performance. This is in agreement with a derived optimal processor (described in the Appendix) based upon image and temporal difference characteristics.
Aerospace and Electronic Systems, IEEE Transactions on (Volume:AES-14 , Issue: 1 )
Date of Publication: Jan. 1978