Filters that have optimal trade-offs among the criteria of noise robustness, sharpness of the correlation peak, and Horner efficiency are presented, and an explicit mathematical expression is provided. Owing to their optimality, these filters provide a figure of merit and then permit a rigorous characterization of filter performances for optical pattern recognition.
© 1991 Optical Society of America
Original Manuscript: November 1, 1990
Published: June 1, 1991
Ph. Refregier, "Optimal trade-off filters for noise robustness, sharpness of the correlation peak, and Horner efficiency," Opt. Lett. 16, 829-831 (1991)