Separating Reflective and Fluorescent Components Using High Frequency Illumination in the Spectral Domain

IEEE Transactions on Pattern Analysis and Machine Intelligence
Ying FuYoichi Sato

Abstract

Hyperspectral imaging is beneficial to many applications but most traditional methods do not consider fluorescent effects which are present in everyday items ranging from paper to even our food. Furthermore, everyday fluorescent items exhibit a mix of reflection and fluorescence so proper separation of these components is necessary for analyzing them. In recent years, effective imaging methods have been proposed but most require capturing the scene under multiple illuminants. In this paper, we demonstrate efficient separation and recovery of reflectance and fluorescence emission spectra through the use of two high frequency illuminations in the spectral domain. With the obtained fluorescence emission spectra from our high frequency illuminants, we then describe how to estimate the fluorescence absorption spectrum of a material given its emission spectrum. In addition, we provide an in depth analysis of our method and also show that filters can be used in conjunction with standard light sources to generate the required high frequency illuminants. We also test our method under ambient light and demonstrate an application of our method to synthetic relighting of real scenes.

References

Jan 1, 1986·Journal of the Optical Society of America. A, Optics and Image Science·L T Maloney, B A Wandell
Jul 25, 2006·Medical Image Analysis·I B StylesJ M Gibson
Sep 14, 2006·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·George McNamaraCarl Boswell
Oct 19, 2013·IEEE Transactions on Pattern Analysis and Machine Intelligence·Cherry Zhang, Imari Sato

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Citations

Feb 7, 2018·Optics Express·Shoji TominagaTakahiko Horiuchi
Feb 29, 2020·Optics Letters·Ying FuHua Huang

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