Patent · US Active

System, method and marker for the determination of the position of a movable object in space

US11504855B2 · kind B2 · utility

0Cited by

2References

23Claims

0Family size

Assignees

Carl Zeiss SMT GmbH · DE
Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

Jan Horn · Munich, DE
Nils Haverkamp · Aalen, DE
Marc Schneider · West Orange, US
Tanja Teuber · Aalen, DE
Lars Omlor · Dublin, US

Key dates

Filing date	Dec 12, 2019
Grant date	Nov 22, 2022
Priority date	—
Expiry date	Jun 20, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30204
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system for determining the position of a movable object in space includes a marker which is to be applied to the object. The marker has a surface which is subdivided into a plurality of individual fields. The fields each have a statistical noise pattern. The system also includes an image capture unit which is remote from the object and is arranged to capture an image of the marker. The system further includes an image evaluation unit which stores a reference image of the noise patterns and is designed to locate at least one of the fields in the currently captured image of the marker by comparison with the reference image in order to determine a current position of the marker in space. There are corresponding methods for determining a position the object.

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