Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Aperture measurement based on a conic invariant

Not Accessible

Your library or personal account may give you access

Abstract

With the advantages of low cost, universal applicability, and in situ detection, the conic invariant of the tested aperture diameter was obtained by ellipse geometric fitting on the aperture surface. The world coordinate system was established, and the transformation relationship between the world coordinate system and the camera coordinate system was obtained by the calibration. The improved Candy algorithm and coordinate transformation relationship could be used to project the sub-pixel coordinates of the aperture edge onto the aperture surface. Then, the ellipse geometric fitting was performed on the aperture edge curve surface to obtain the conic invariant. Finally, the conic invariant was used to measure the aperture diameter on the test bench.

© 2022 Optical Society of America

Full Article  |  PDF Article
More Like This
Vision measuring method for the involute profile of a gear shaft

Jianwei Miao, Qingchang Tan, Siyuan Liu, Haojing Bao, and Xianbao Li
Appl. Opt. 59(13) 4183-4190 (2020)

Method of micro hole tilt adjustment based on a vision-guided touch probe

He Zhang, Jiwen Cui, and Jiubin Tan
Opt. Express 30(23) 41133-41146 (2022)

Data Availability

The data presented in this study are available on request from the corresponding author.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (12)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (22)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved