Patent · US Expired

Method and device for detecting a change between pixel signals which chronologically follow one another

US6765960B1 · kind B1 · utility

1Cited by

4References

10Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Michael Schanz · Gerlingen, DE
Su-Birm Park · Aldenhoven, DE
Andreas Teuner · Essen, DE
Markus Schwarz · Schäching, DE
Bedrich Hosticka · Rübhausen, DE

Key dates

Filing date	May 9, 2000
Grant date	Jul 20, 2004
Priority date	—
Expiry date	May 9, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/76
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

For detecting a change between pixel signals which chronologically follow one another, a current pixel value is first deteced and, subsequently, the difference between the detected pixel signal and a reference value is determined. Depending on the difference, it is determined whether there is a change of the detected pixel value in comparison with the preceding pixel values, the reference signal being produced from two or more pixel values preceding the detected pixel value.

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