The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2009
Filed:
Apr. 12, 2005
Ingolf Braune, Gundelfingen, DE;
Jörg Grabinger, Emmendingen, DE;
Ingolf Braune, Gundelfingen, DE;
Jörg Grabinger, Emmendingen, DE;
Sick AG, Waldkirch, DE;
Abstract
In a method for the monitoring of a monitored zone next to and/or in an apparatus having at least one driven movable part, video images are used which were detected in time sequence by at least two video cameras whose fields of view overlap at least partly in an overlap region in the monitored zone. On the basis of the first video images detected by a first one of the video cameras, a first recognition and/or tracking of virtual objects is carried out and, on the basis of the second video images detected by a second one of the video cameras, a second recognition and/or tracking of virtual objects is carried out, the virtual objects corresponding to real objects at least in the overlap region. For the classification and/or determination of the position and/or the movement of at least one real object in the overlap region, virtual objects corresponding to the real object from the first and second virtual object recognition and/or tracking processes are determined and data determined in each case for both virtual objects on their virtual object recognition and/or tracking are evaluated. At least one monitoring signal is formed in dependence on the evaluation.