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Snapshot hyperspectral light field imaging using image mapping spectrometry

Abstract

In this Letter, we present a snapshot hyperspectral light field imaging system using a single camera. By integrating an unfocused light field camera with a snapshot hyperspectral imager, the image mapping spectrometer, we captured a five-dimensional (5D) ($x,y,u,v,\lambda $) ($x,y,$ spatial coordinates; $u,v,$ emittance angles; $\lambda ,$ wavelength) datacube in a single camera exposure. The corresponding volumetric image ($x,y,z$) at each wavelength is then computed through a scale-depth space transform. We demonstrated the snapshot advantage of our system by imaging the spectral-volumetric scenes in real time.

© 2020 Optical Society of America

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Supplementary Material (2)

NameDescription
Visualization 1       This video shows 40 color channel images of an object
Visualization 2       This video shows a varying depth map of a dynamic object

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