; Department of Computer Science, Michigan State University, East Lansing, MI 48823; Department of Computer Science, University of Kentucky, Lexington, KY 40506.
Two-stage template matching with sum of absolute differences as the similarity measure has been developed by Vanderburg and Rosenfeld , . This correspondence shows the development of two-stage template matching with cross correlation as the similarity measure. The threshold value of the first-stage is derived analytically and its validity is verified experimentally. Considerable speed-up over the one-stage process can be obtained by introducing only a small false dismissal probability.