Imaging apparatus and image processing method
US9019479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Nov 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an imaging apparatus for generating data of a phase image based on an interference pattern acquired by a shearing interferometer, including: a differential phase data calculating unit that calculates first differential phase data expressing a change of a phase in a first direction and second differential phase data expressing a change of a phase in a second direction, based on interference pattern data generated by an electromagnetic wave transmitted through a subject; a second-order differential phase data calculating unit that calculates first second-order differential phase data by differentiating the first differential phase data in the first direction, and calculates second second-order differential phase data by differentiating the second differential phase data in the second direction; and a phase data calculating unit that calculates the phase image by solving a second-order differential equation including the first and second second-order differential phase data as functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.