Patent · US Expired

Method for identifying change of scenery and corresponding monitoring device

US7130468B1 · kind B1 · utility

11Cited by

9References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Meyer · Altdorf, DE
Michael Hoetter · Gehrden, DE
Jens Dreves · Munich, DE

Key dates

Filing date	Jul 11, 2000
Grant date	Oct 31, 2006
Priority date	—
Expiry date	Jul 17, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/144
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for detecting changes in a viewfield observed by a stationary image capturing device is proposed, in which edge images are calculated and are compared to edge images of reference recordings in order to detect static changes within the observed image range that are independent of image brightness.

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