Time multiplexing super resolution using a 2D Barker-based array

Asaf Ilovitsh; Tali Ilovitsh; Eyal Preter; Nadav Levanon; Zeev Zalevsky

doi:10.1117/12.2206198

9 March 2016 Time multiplexing super resolution using a 2D Barker-based array

Asaf Ilovitsh, Tali Ilovitsh, Eyal Preter, Nadav Levanon, Zeev Zalevsky

Proceedings Volume 9716, Optical Methods in Developmental Biology IV; 97160I (2016) https://doi.org/10.1117/12.2206198
Event: SPIE BiOS, 2016, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Asaf Ilovitsh, Tali Ilovitsh, Eyal Preter, Nadav Levanon, and Zeev Zalevsky "Time multiplexing super resolution using a 2D Barker-based array", Proc. SPIE 9716, Optical Methods in Developmental Biology IV, 97160I (9 March 2016); https://doi.org/10.1117/12.2206198

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