Cui Qi, Park Jongchan, Theodore Smith R, Gao Liang
Opt Lett. 2020 Feb 1;45(3):772-775. doi: 10.1364/OL.382088.
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 $x,y,u,v,λ) ($x,y,$x,y, spatial coordinates; $u,v,$u,v, emittance angles; $\lambda ,$λ, wavelength) datacube in a single camera exposure. The corresponding volumetric image ($x,y,z$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.
在本信函中，我们展示了一种使用单相机的快照高光谱光场成像系统。通过将未聚焦光场相机与快照高光谱成像仪（图像映射光谱仪）相结合，我们在单次相机曝光中捕获了一个五维（5D）（$x,y,u,v,\lambda$）（$x,y$，空间坐标；$u,v$，发射角；$\lambda$，波长）数据立方体。然后通过尺度 - 深度空间变换计算每个波长处的相应体积图像（$x,y,z$）。我们通过对光谱 - 体积场景进行实时成像展示了我们系统的快照优势。
