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Title: Three dimensional HiLo-based structured illumination for a digital scanned laser sheet microscopy (DSLM) in thick tissue imaging
Authors: Bhattacharya, D.
Singh, V.R.
Zhi, C.
So, P.T.C.
Matsudaira, P. 
Barbastathis, G.
Issue Date: 3-Dec-2012
Citation: Bhattacharya, D., Singh, V.R., Zhi, C., So, P.T.C., Matsudaira, P., Barbastathis, G. (2012-12-03). Three dimensional HiLo-based structured illumination for a digital scanned laser sheet microscopy (DSLM) in thick tissue imaging. Optics Express 20 (25) : 27337-27347. ScholarBank@NUS Repository.
Abstract: Laser sheet based microscopy has become widely accepted as an effective active illumination method for real time three-dimensional (3D) imaging of biological tissue samples. The light sheet geometry, where the camera is oriented perpendicular to the sheet itself, provides an effective method of eliminating some of the scattered light and minimizing the sample exposure to radiation. However, residual background noise still remains, limiting the contrast and visibility of potentially interesting features in the samples. In this article, we investigate additional structuring of the illumination for improved background rejection, and propose a new technique, "3D HiLo" where we combine two HiLo images processed from orthogonal directions to improve the condition of the 3D reconstruction. We present a comparative study of conventional structured illumination based demodulation methods, namely 3Phase and HiLo with a newly implemented 3D HiLo approach and demonstrate that the latter yields superior signal-tobackground ratio in both lateral and axial dimensions, while simultaneously suppressing image processing artifacts. © 2012 Optical Society of America.
Source Title: Optics Express
ISSN: 10944087
DOI: 10.1364/OE.20.027337
Appears in Collections:Staff Publications

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