Patent · US Active

Method for determining the exposure time for a 3D recording

US10853971B2 · kind B2 · utility

0Cited by

2References

17Claims

0Family size

Assignee

Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

Christian Schleith · Neubeuern, DE
Tom Jaeckel · Rosenheim, DE
Alexander Frey · Munich, DE
Markus Basel · Raubling, DE

Key dates

Filing date	Feb 1, 2018
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Feb 1, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04N23/745
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for determining an exposure, in particular an exposure time, for a recording in a method for determining the 3D coordinates of an object is provided, in which a pattern is projected onto the object and the light reflected by the object is recorded. To improve such a method, a recording of the object is produced with a predetermined exposure, in particular exposure time. A mask image of this recording is produced, in which mask image the regions of the object lying within the measurement volume are depicted. The exposure, in particular the exposure time, for the recording is determined depending on the predetermined exposure, in particular exposure time, depending on the mean greyscale value in the regions, lying within the measurement volume, of the recording with a predetermined exposure and depending on an ideal greyscale value.

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