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US 12,469,243 B2Granted
Polarimetric camera
AssigneeThe Regents of the University of California
InventorsLuat Thanh Vuong, Xiaojing Weng, Altai Perry, Ji Feng
Life of this patent
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Abstract
A polarization-sensitive encoder, a polarimetric camera, and a method for polarimetric imaging in which the encoder includes a two-dimensional (2D) polycrystalline photonic-crystal film with nanofiber, multi-scale, self-assembled structures.
Claims18
A polarimetric camera comprising:
- a lens with a metagrating film adhered to the lens, the metagrating film including a two-dimensional (2D) photonic-crystal array with polyaniline hollow spheres (PANI-HS) nanostructures;
- a charged-coupled device (CCD) sensor configured to receive a speckle pattern from the lens with the metagrating film;
- and
- a computer system configured to process the speckle pattern received from the CCD sensor, and wherein points of polarized light from a scene are configured to be transmitted through the lens forming the speckle pattern on the CCD sensor.
1 more element
A method for polarimetric imaging comprising:
- receiving a speckle pattern on a polarization-agnostic charged-coupled device (CCD) sensor from a lens having a metagrating film, the metagrating film including a two-dimensional (2D) photonic-crystal array with polyaniline hollow spheres (PANI-HS) nanostructures;
- and
- processing the speckle pattern received from the polarization-agnostic charged-coupled device (CCD) sensor with a computational algorithm to reconstruct a scene.
A system for detecting an object comprising:
- one or more markers configured to be placed or arranged on the object, the one or more markers being patterned with multi-scale features with meso-ordered, fractal statistics;
- an emitter configured to emit a beam of light towards the one or more markers on the object;
- and
- a receiver configured to detect a beam image of the emitted beam of light being reflected from the one or more markers on the object, and wherein the detected beam image from the beam of light is a code that identifies the object.
1 more element
Dependencies are inferred from the claim text.