Needle-shape quality control by shadowgraphic image processing

Fabrice Mairesse; Tadeusz Sliwa; Michael Roy; Yvon Voisin

doi:10.1117/1.3541801

1 February 2011 Needle-shape quality control by shadowgraphic image processing

Fabrice Mairesse, Tadeusz Sliwa, Michael Roy, Yvon Voisin

Author Affiliations +

Optical Engineering, Vol. 50, Issue 2, 027204 (February 2011). https://doi.org/10.1117/1.3541801

Abstract

We propose a needle-shape quality-control method. To this end, we have devised a new acquisition system that combines a camera and a backlight. Needle measurements are carried out at a micrometric scale using shadowgraphic image processing. Our method not only distinguishes good needles from bad ones, but also allows classifying flawed needles into various categories of defects. This classification is important because some categories of defects can affect the entire production, whereas others do not. The results of our needle-shape quality-control method are validated using real samples directly off the manufacturing line. Needles are correctly classified at >97%, and accurate measurements on global shape characteristics such as straightness and sharpness are obtained.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Fabrice Mairesse, Tadeusz Sliwa, Michael Roy, and Yvon Voisin "Needle-shape quality control by shadowgraphic image processing," Optical Engineering 50(2), 027204 (1 February 2011). https://doi.org/10.1117/1.3541801

Published: 1 February 2011

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