Patent · US Active

Beam hardening correction for scanning dark field and phase contrast imaging

US10417761B2 · kind B2 · utility

1Cited by

1References

12Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Thomas Koehler · Norderstedt, DE
Heiner Daerr · Hamburg, DE
Ewald Roessl · Ellerau, DE

Key dates

Filing date	May 6, 2016
Grant date	Sep 17, 2019
Priority date	—
Expiry date	May 23, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/461
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An apparatus and related method for processing image data supplied by a scanning phase contrast or dark-field imaging apparatus (MA). Beam hardening artifact in phase contrast and dark-field imaging can be reduced by applying a beam hardening processing operation by a beam hardening processing module (BHC) in respect of a plurality of detector readings that contribute signals to the same image pixel position or geometric ray of an imaging region of the apparatus (MA). In one embodiment, a phantom body (PB) is used to acquire calibration data on which the beam hardening processing is based.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.