Patent · US Active

Method and device for calibrating a 3D TOF camera system

US9726754B2 · kind B2 · utility

63Cited by

1References

10Claims

0Family size

Assignee

IFM Electronic GmbH · US

Inventors

Javier Massanell · Markdorf, DE
Volker Frey · Schopfheim, DE
Thomas May · Konstanz, DE

Key dates

Filing date	Apr 19, 2012
Grant date	Aug 8, 2017
Priority date	—
Expiry date	Mar 1, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/931
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for calibrating a three dimensional time-of-flight camera system mounted on a device, includes determining at a first instant a direction vector relating to an object; determining an expected direction vector and expected angle for the object to be measured at a second instant with reference to the device's assumed trajectory and optical axis of the camera; determining a current direction vector and current angle at the second instant; determining an error represented by a difference between the current direction vector and the expected direction vector; and using the error to correct the assumed direction of the main optical axis of the camera system such that said error is substantially eliminated.

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