Super-resolving imaging system
US6344893B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jun 19, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/166
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A super-resolving imaging apparatus employs diffractive optical elements placed on the imaging lens. This element, and the use of a modified Scheimpflug arrangement allow the conversion of degrees of freedom in one axis of a field of view to a larger degree of freedom in another axis in order to obtain a high resolution image with a wide depth of focus and large field of view. Replicas created by the diffractive elements are mutually shifted by subpixel amounts, and are combined using a Gabor transform, which is facilitated by a spatial mask placed over the detector array. The apparatus is suitable for performing distance estimation on an object within the field of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.