Patent · US Active

Method for noise correction for a flat-panel detector

US7965333B2 · kind B2 · utility

3Cited by

5References

11Claims

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	Mar 29, 2005
Grant date	Jun 21, 2011
Priority date	—
Expiry date	Apr 28, 2028

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 (2), noise signals of a dark area (6) are checked for deviations exceeding a specified threshold (g) 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.