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Proceedings Paper

Time multiplexing super resolution using a 2D Barker-based array
Author(s): Asaf Ilovitsh; Tali Ilovitsh; Eyal Preter; Nadav Levanon; Zeev Zalevsky
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Paper Abstract

We propose the use of a two dimensional Barker-based array in order to improve the performance of the standard time multiplexing super resolution system. The Barker-based array is a 2D generalization of the standard 1D Barker code. It enables achieving a two dimensional super resolution image using only one dimensional scan, by exploiting its unique auto correlation property. A sequence of low resolution images are captured at different lateral positions of the array, and are decoded properly using the same array. In addition, we present the use of a mismatched array for the decoding process. The cross correlation between the Barker-based array and the mismatched array has a perfect peak to sidelobes ratio, making it ideal for the super resolution process. Also, we propose the projection of this array onto the object using a phase-only spatial light modulator. Projecting the array eliminates the need for printing it, mechanically shifting it, and having a direct contact with the object, which is not feasible in many imaging applications. The proposed method is presented analytically, demonstrated via numerical simulation, and validated by laboratory experiments.

Paper Details

Date Published: 9 March 2016
PDF: 8 pages
Proc. SPIE 9716, Optical Methods in Developmental Biology IV, 97160I (9 March 2016); doi: 10.1117/12.2206198
Show Author Affiliations
Asaf Ilovitsh, Bar-Ilan Univ. (Israel)
Tali Ilovitsh, Bar-Ilan Univ. (Israel)
Eyal Preter, Bar-Ilan Univ. (Israel)
Nadav Levanon, Tel Aviv Univ. (Israel)
Zeev Zalevsky, Bar-Ilan Univ. (Israel)

Published in SPIE Proceedings Vol. 9716:
Optical Methods in Developmental Biology IV
Andrew M. Rollins; Scott E. Fraser; Michael A. Choma, Editor(s)

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