Patent · US Active

Method for noise correction for a flat-panel detector

US8670062B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Burkhard Groh · Chicago, US
Volker Heer · Gundelsheim, DE
Mathias Hörnig · Erlangen, DE
Bernhard Sandkamp · Erlangen, DE

Key dates

Filing date	Apr 29, 2011
Grant date	Mar 11, 2014
Priority date	—
Expiry date	Feb 8, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/63
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

For noise correction in connection with a flat-panel x-ray detector, noise signals of a dark reference area are checked for deviations exceeding a specified threshold which, if any are present, will be taken into consideration separately for calculating the correction factor derived from the noise signal. Image artifacts due, for example, to high-contrast objects such as, for instance, cardiac pacemakers or metallic implants, in the x-ray image will be avoided through this measure.

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