Hyperspectral compressive imaging with integrated photonics
AssigneeThe Regents of the University of California
InventorSung-Joo Ben Yoo
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Abstract
One embodiment provides a compressive hyperspectral imaging system. The compressive hyperspectral imaging system can include a coded aperture configured to spatially encode an optical signal associated with a scene, an integrated photonic device configured to disperse the spatially encoded optical signal, and an array of photo detectors configured to detect the dispersed and spatially encoded optical signal. The output of the array of photo detectors is used for reconstruction of a hyperspectral image corresponding to the scene.
Claims22
A compressive hyperspectral imaging system, comprising:
- a coded aperture configured to spatially encode an optical signal associated with a scene;
- an integrated photonic device configured to disperse the spatially encoded optical signal;
- and
- an array of photo detectors configured to detect the dispersed and spatially encoded optical signal, wherein an output of the array of photo detectors is used for reconstruction of a hyperspectral image corresponding to the scene.
An optical encoding system, comprising:
- a spatial encoder configured to spatially encode an optical signal associated with a to-be-imaged scene;
- and
- a dispersive element comprising a meta structure configured to disperse the spatially encoded optical signal, wherein the meta structure comprises a substrate and a number of pillars with predetermined shapes arranged into a two-dimensional (2D) array of a predetermined pattern, thereby allowing the dispersed and spatially encoded optical signal to be detected to reconstruct a hyperspectral image corresponding to the scene.
An optical encoding system, comprising:
- a spatial encoder configured to spatially encode an optical signal associated with a to-be-imaged scene;
- and
- a dispersive element comprising a plurality of arrayed waveguide grating router (AWGR) blocks configured to disperse the spatially encoded optical signal, wherein the AWGR blocks form a two-dimensional (2D) array, and wherein a respective AWGR block comprises one or more horizontally or vertically stacked AWGRs, thereby allowing the dispersed and spatially encoded optical signal to be detected to reconstruct a hyperspectral image corresponding to the scene.
Dependencies are inferred from the claim text.