COMPARATIVE PERFORMANCE OF LOCALLY NONLINEAR MATCHED-FILTERS AND OF OPTIMAL TRADEOFF FILTERS

A comparison of the performance of Locally Nonlinear Filters (LNMFs) a nd Optimal Tradeoff Filters (OTFs) for the recognition of single image s has been carried out. The comparison is done using several performan ce criteria such as Signal to Noise Ratio, Peak to Correlation Energy Ratio and Optical Efficiency. A strong similarity between the whitenin g strategies of both filter families has been found when the Optimal T radeoff Filters for peak sharpness and noise robustness are compared w ith LNMFs. Our tests show a marginal superiority of OTFs over LNMFs.