Traditional hyperspectral imaging systems employ scanning or down-sampling along each dimension axis, leading to prolonged acquisition times or reduced resolutions. To remedy this problem, we propose two spectral imaging systems: Hyperspectral Light Field Tomography (Hyper-LIFT) and Tunable Image Projection Spectrometry (TIPS). I will discuss system design and applications of those systems.
We apply the label-free hyperspectral light field tomographic (Hyper-LIFT) technology in eye imaging application. A 5D (x, y, θ, φ, λ) (x, y, spatial coordinates; θ, φ, angular coordinates; λ, wavelength) 300×300×4×4×90 plenoptic datacube were acquired with a spectrum range from 530nm to 570nm in a snapshot. The capability of capturing light field enables digital refocusing which extend the depth of field. We demonstrate the spectral imaging performance with a color checker and artificial eye model.
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