Improved Cross-correlation for Template Matching on the Laplacian Pyramid
Schwartz, Eric L.
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Template matching via cross-correlation on Laplacian pyramid image architectures has been traditionally performed in a "coarse" to "fine" fashion. In the present paper, we show that by computing cross-correlation within each level of the pyramid independently, and considering the su, across (expanded) levels, a significant improvement in Peak to Correlation Energy (PCE)  is obtained. This result is illustrated with a number of numerical examples.