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20 October 1997 Identification of a random binary phase mask and its fragments with a joint transform correlator
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Abstract
The input image phase encoding method is utilized for identification of random binary phase masks (RBPM) and their separated fragments with a joint transform correlator (JTC). Equations for a joint power spectrum of a reference RBPM and its separated fragment and for a fragment's autocorrelation function produced in a JTC are obtained. Dependences between separated mask's fragment parameters and autocorrelation output signals are determined. Equations for autocorrelation peaks coordinates definition at a JTC output plane are found. Computer simulations of a mask's fragments autocorrelation functions are carried out. Influence of a mask and a fragments dimensions on output autocorrelation and sidelobe peaks is studied on a base of obtained results. Algorithm for realization of a code identification by a JTC with a phase-encoded input is proposed
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Leonid I. Muravsky, Volodymyr M. Fitio, Mykhajlo V. Shovgenyuk, and Petro A. Hlushak "Identification of a random binary phase mask and its fragments with a joint transform correlator", Proc. SPIE 3238, Current Ukrainian Research in Optics and Photonics: Optoelectronic and Hybrid Optical/Digital Systems for Image Processing, (20 October 1997); https://doi.org/10.1117/12.284788
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