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Design and analysis of polygonal mirror-based scan engines for improved spatial frequency modulation imaging

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Abstract

Spatial frequency modulation imaging (SPIFI) is a structured illumination single pixel imaging technique that is most often achieved via a rotating modulation disk. This implementation produces line images with exposure times on the order of tens of milliseconds. Here, we present a new architecture for SPIFI using a polygonal scan mirror with the following advances: (1) reducing SPIFI line image exposure times by 2 orders of magnitude, (2) facet-to-facet measurement and correction for polygonal scan design, and (3) a new anamorphic magnification scheme that improves resolution for long working distance optics.

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Supplementary Material (1)

NameDescription
Supplement 1       Describes considerations needed for designing and machining a Cartesian SPIFI mask for use in polygonal scan SPIFI implementations.

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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