Compressive imaging method and system comprising a detector, a mask, and a drive for rotating the mask about at least one of one or more axes of rotational symmetry
US11555935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2018 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Dec 16, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/043
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A mask for use in compressed sensing of incoming radiation includes a material that modulates an intensity of incoming radiation, a plurality of mask aperture regions, and one or more axes of rotational symmetry with respect to the mask aperture regions. Each mask aperture region includes at least one mask aperture that allows a higher transmission of the incoming radiation relative to other portions of the mask aperture region. The relative transmission sufficient to allow a reconstruction of compressed sensing measurements and has a shape that provides a symmetry under rotation about the one or more axes of rotational symmetry. A mutual coherence of a sensing matrix generated by a rotation of the plurality of mask aperture regions is less than one. An imaging system for compressed sensing of incoming radiation including such a mask is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.