A model for the reflectance in spatial frequency domain imaging from the diffuse to the subdiffuse regime

Anouk L. Post; Dirk J. Faber; Ton G. van Leeuwen

doi:10.1117/12.2650171

17 March 2023 A model for the reflectance in spatial frequency domain imaging from the diffuse to the subdiffuse regime

Anouk L. Post, Dirk J. Faber, Ton G. van Leeuwen

Proceedings Volume PC12363, Multiscale Imaging and Spectroscopy IV; PC123630Q (2023) https://doi.org/10.1117/12.2650171
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

In Spatial Frequency Domain Imaging (SFDI) a sinusoidal intensity pattern is projected onto tissue, and the reflectance is a function of the projected spatial frequency and the tissue optical properties. For low spatial frequencies measurements are in the diffuse regime and a model by Cuccia et al. is currently used for this regime. For high spatial frequencies measurements are in the subdiffuse regime and no model exists. Here, we derive a comprehensive model that describes the reflectance as a function of tissue optical properties and spatial frequencies from the diffuse to the subdiffuse regime.

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Anouk L. Post, Dirk J. Faber, and Ton G. van Leeuwen "A model for the reflectance in spatial frequency domain imaging from the diffuse to the subdiffuse regime", Proc. SPIE PC12363, Multiscale Imaging and Spectroscopy IV, PC123630Q (17 March 2023); https://doi.org/10.1117/12.2650171

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KEYWORDS

Reflectivity

Optical properties

Spatial frequencies

Tissue optics

Diffusion

Error analysis

Monte Carlo methods

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