公开(公告)号：US10859376B2

公开(公告)日：2020-12-08

申请号：US15435924

申请日：2017-02-17

Applicant: MITUTOYO CORPORATION

Inventor： Yuji Kudo

IPC: G01B21/20 ,  G01B11/06 ,  G01B5/00 ,  G01B21/04 ,  G01B11/24 ,  G01B5/12 ,  G01B5/06 ,  G01B11/12 ,  G01B11/30 ,  G01M15/04

Abstract: Provided is an information processing apparatus including: an input unit into which shape data of a surface to be measured including a plurality of recesses is input; and a setting unit that detects each of the plurality of recesses on the basis of the input shape data and sets, for the detected recess, a region to be removed including the recess.

公开(公告)号：US10274313B2

公开(公告)日：2019-04-30

申请号：US15440118

申请日：2017-02-23

Applicant: MITUTOYO CORPORATION

Inventor： Hiroshi Sakai ,  Yutaka Watanabe ,  Yasuhiro Takahama ,  Harumasa Ito ,  Yuji Kudo

IPC: G01B11/24 ,  G01B11/30 ,  G01B11/14 ,  G01B21/04

Abstract: According to an embodiment of the present invention, a method of measuring a surface of an object having a curved shape by measuring a distance from a measurement head to the object, includes: setting a measuring region of the object and a threshold value of concave and convex; acquiring shape reference data including the curved shape of the object; acquiring three-dimensional data of the surface of the object by measuring the distance between the object in the measuring region and the measurement head; acquiring curve removed data by removing the shape reference data from the three-dimensional data; calculating second reference data by calculating first reference data based on the curve removed data, by removing data exceeding the threshold value with respect to the first reference data, from the curve removed data, and by averaging the curve removed data; and calculating shape data of the concave and convex.