High dynamic range, sub-diffuse reflectance imaging over a wide field using an active line scan

Samuel S. Streeter; Benjamin W. Maloney; Keith D. Paulsen; Brian W. Pogue

doi:10.1117/12.2577717

5 March 2021 High dynamic range, sub-diffuse reflectance imaging over a wide field using an active line scan

Samuel S. Streeter, Benjamin W. Maloney, Keith D. Paulsen, Brian W. Pogue

Proceedings Volume 11622, Multiscale Imaging and Spectroscopy II; 116220P (2021) https://doi.org/10.1117/12.2577717
Event: SPIE BiOS, 2021, Online Only

Abstract

Active line scan imaging (LSI) with spatial gating is explored for wide-field, sub-diffuse sensing of scattering microtextures. Spatial gating involves masking detector pixels far from the laser line of incidence on a turbid target. The active line scan provides broadband spatial frequency modulation, and the spatial gating effectively high pass filters the reflectance. The major benefits of LSI are that of high dynamic range signal preservation and high contrast-to-noise when imaging at high spatial frequencies. As such, LSI presents as an inherently high sensitivity and high dynamic range way to image microscopic scattering features on the surfaces of turbid media.

Conference Presentation

Citation Download Citation

Samuel S. Streeter, Benjamin W. Maloney, Keith D. Paulsen, and Brian W. Pogue "High dynamic range, sub-diffuse reflectance imaging over a wide field using an active line scan", Proc. SPIE 11622, Multiscale Imaging and Spectroscopy II, 116220P (5 March 2021); https://doi.org/10.1117/12.2577717

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