Performance analysis of the ternary amplitude modulated binary phase only filter

Author

Iftekharuddin, K.M. ; Karim, M.A. ; Awwal, A.A.S.

Author_Institution

Dept. of Electr. Eng., Dayton Univ., OH, USA

fYear

1994

fDate

23-27 May 1994

Firstpage

289

Abstract

An optical pattern or character recognition operation may consist of matching either amplitudes, or phases, or both, The amplitude-modulated phase-only filter (AMPOF), in particular, effectively utilizes both amplitude and phase information to obtain a narrower and larger autocorrelation peak. However, as with any continuous-valued filters, the AMPOF function is not readily suitable for real-time pattern recognition operation. Accordingly, the amplitude and phase of the AMPOF are respectively ternarized and binarized to yield an improved performance statistics of the correlator

Keywords

Fourier transform optics; Fourier transforms; amplitude modulation; digital simulation; frequency-domain analysis; image recognition; optical character recognition; optical correlation; performance evaluation; spatial filters; AM; autocorrelation peak; autocorrelation statistics; character recognition; continuous-valued filters; improved performance statistics; optical pattern recognition; performance analysis; real-time pattern recognition; simulation; ternary amplitude modulated binary phase only filter; Amplitude modulation; Character recognition; Information filtering; Information filters; Matched filters; Optical character recognition software; Optical filters; Optical modulation; Pattern matching; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1994. NAECON 1994., Proceedings of the IEEE 1994 National

Conference_Location

Dayton, OH

Print_ISBN

0-7803-1893-5

Type

conf

DOI

10.1109/NAECON.1994.332993

Filename

332993