Mr. Guocheng Dai Profile

Guocheng Dai

at China Jiliang Univ.

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 23 January 2023 Paper

Edge detection of screw thread based on machine vision

Guocheng Dai, Hengzheng Wei, Zai Luo, Wensong Jiang

Proceedings Volume 12557, 125571Q (2023) https://doi.org/10.1117/12.2651836

KEYWORDS: Edge detection, Image filtering, Image processing, Machine vision, Digital filtering, Calibration, Imaging systems, Cameras, Technology, Optical filters

Read Abstract +

Aiming at the problem of thread measurement with small pitch, a screw thread parameters measurement method based on machine vision is proposed, which solves the problem that the tip of the mechanical scanning probe is too large to measure the small size pitch diameter. This work developed a method of image processing method to detect the edge of screw thread parameters. The screw thread image is collected by calibrating the camera to correct the distortion error. Canny edge detection is used to detect the edge contours in the thread image, as well as mean filtering and median filtering. Gaussian smoothing filtering is also studied to obtain higher measurement accuracy: a sub-pixel subdivision technique is designed to improve the resolution of the imaging system. In order to rotate the screw thread image, a minimum rectangle fitting algorithm for the measurement area is developed. The affine transformation matrix is constructed by the center of the measurement area and the orientation of the long axis of the screw thread. This thread parameter edge detection technique has the advantages of simple and quick operation and high measurement accuracy.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years