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.

Date of Patent:
Aug. 23, 2022

Filed:

Jan. 24, 2019
Applicant:

Cyberoptics Corporation, Golden Valley, MN (US);

Inventors:

Eric P. Rudd, Hopkins, MN (US);

Carl E. Haugan, St. Paul, MN (US);

Paul R. Haugen, Bloomington, MN (US);

Assignee:

CyberOptics Corporation, Golden Valley, MN (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/25 (2006.01); H04N 5/225 (2006.01); G02B 27/09 (2006.01); G01B 11/06 (2006.01); G06V 20/64 (2022.01);
U.S. Cl.
CPC ...
G01B 11/254 (2013.01); G01B 11/0608 (2013.01); G01B 11/2504 (2013.01); G01B 11/2513 (2013.01); G02B 27/0955 (2013.01); G06V 20/64 (2022.01); H04N 5/2256 (2013.01);
Abstract

A system for generating a three-dimensional height image of a reflective target includes an illumination source configured to generate a patterned illumination on the reflective target, and an imaging system configured to acquire an image of the patterned illumination on the reflective target, the illumination source and camera being aligned relative to the target such that the camera acquires a specular image of the patterned illumination. The system further including a controller coupled to the illumination source and the camera configured to generate a first height image of the target based on the acquired image, the first height image being used by the controller to determine a position, a height, and a tilt of the target and calculate an error function based on the determination to compensate the first height image for the calculated error.


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