Snapshot hyperspectral light field imaging using Image Mapping SpectrometryOptics Letters
- Qi Cui, Jongchan Park, R. Theodore Smith, and Gao Liang
- received 10/31/2019; accepted 11/23/2019; posted 12/04/2019; Doc. ID 382088
- 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 5D (x,y,u,v,λ) ( x,y, spatial coordinates; u,v, emittance angles; λ, 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.