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.:

US 8581162 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 12, 2013

Filed:

Dec. 08, 2009
Applicant:

Shannon R. Campbell, Bothell, WA (US);

Inventor:

Shannon R. Campbell, Bothell, WA (US);

Assignee:

Mitutoyo Corporation, Kawasaki-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/64 (2006.01); G06K 9/00 (2006.01); G01B 11/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A machine vision inspection system acquires a plurality of images of a workpiece region of interest at various focus heights, and determines a Z-height (e.g., the best focus height) for the region of interest based on a focus peak determining data set for the region of interest. The focus peak determining data set is derived from the plurality of images. The machine vision inspection system also determines Z-height quality meta-data based on data derived from the plurality of images (e.g., based on the focus peak determining data set), and associates the Z-height quality meta-data with the corresponding Z-heights. The Z-height quality meta-data are usable to establish weighting factors that are used in association with the corresponding best focus Z-heights in subsequent operations that fit a workpiece surface representation to a plurality of the best focus Z-heights.


Find Patent Forward Citations

Campbell, Shannon. (2013). Weighting surface fit points based on focus peak uncertainty (U.S. Patent No. 8581162). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8581162

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