The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2021
Filed:
Jun. 12, 2019
University of Tsukuba, Ibaraki, JP;
Hiroyuki Kudo, Tsukuba, JP;
Songzhe Lian, Tsuchiura, JP;
University of Tsukuba, Ibaraki, JP;
Abstract
A phase imaging method and apparatus are provided, the phase imaging method including causing a quantum beam from a radiation source to be incident on a detector through a test object and at least one phase grating and obtaining a phase image of the test object, based on intensity distribution of a beam in a pixel constituting the detector. The intensity distribution of the beam at least includes information of absorption (a), visibility (V), and phase (φ). At least three adjacent pixels are assumed to have a substantially identical value for each of the absorption (a), the visibility (V), and the phase (φ) through variable approximation of an image. The absorption, the visibility, and the phase are obtained, based on at least one measurement image.