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.:
Date of Patent:
Aug. 16, 2016
Filed:
Sep. 10, 2014
Mitutoyo Corporation, Kanagawa, JP;
Hiroyuki Yoshida, Hiroshima, JP;
MITUTOYO CORPORATION, Kanagawa, JP;
Abstract
A method includes obtaining a plurality of object images taken by an image pickup device while moving a focal position within a predetermined range, the image pickup device being capable of taking images at arbitrary focal positions within the predetermined range; calculating a first in-focus position within the predetermined range based on pieces of contrast information on a manually-taken object image group, the manually-taken object image group including the plurality of object images taken while manually moving the focal position within the predetermined range; and calculating a second in-focus position within the search range based on pieces of contrast information on an automatically-taken object image group including the plurality of object images taken while automatically moving the focal position within a search range, the search range being determined with reference to the calculated first in-focus position.