Title:
画像測定装置
Document Type and Number:
Japanese Patent JP5668227
Kind Code:
B2
Abstract:
An image measuring apparatus includes: an imaging device of a rolling shutter type configured to image a work; a position control system configured to output a focusing position as information representing a position in a direction of a focusing axis by controlling an in-focus position of the imaging device; and a computing device configured to calculate, from image information acquired from the imaging device, contrast information corresponding to the image information, wherein the computing device divides an acquired image into a plurality of regions and corrects the contrast information corresponding to the image information based on a position of and the contrast information corresponding to each of the regions.
Inventors:
吉田 博行
Application Number:
JP2011031483A
Publication Date:
February 12, 2015
Filing Date:
February 17, 2011
Export Citation:
Assignee:
株式会社ミツトヨ
International Classes:
G01B11/00; G01B11/24
Attorney, Agent or Firm:
Itami 勝
Kazuhiko Tamura
Kazuhiko Tamura