Machine vision system for inner-wall surface inspection

Bao Hua Zhuang; Wenwei Zhang

doi:10.1117/12.301240

2 February 1998 Machine vision system for inner-wall surface inspection

Bao Hua Zhuang, Wenwei Zhang

Proceedings Volume 3306, Machine Vision Applications in Industrial Inspection VI; (1998) https://doi.org/10.1117/12.301240
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

Abstract

A non-contact laser sensor based on the circular optical cutting image is developed to measure the size and the profile of the pipe inner wall. The sensor consists of a laser diode light source, an optical ring pattern generator and a CCD camera. The circular light from the optical ring pattern generator projects onto the pipe inner wall, which is then viewed by the CCD camera. The adapt weighted average value filter and subpixel technique in several step computing and half Gauss fitting are put forward to obtain the edge and the center of the circular image in order to filter the noise of the image and raise the resolution of the measuring system. The experimental results show that the principle is correct and the techniques are realizable.

Citation Download Citation

Bao Hua Zhuang and Wenwei Zhang "Machine vision system for inner-wall surface inspection", Proc. SPIE 3306, Machine Vision Applications in Industrial Inspection VI, (2 February 1998); https://doi.org/10.1117/12.301240

ACCESS THE FULL ARTICLE

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