3D shape measurement of optical free-form surface based on fringe projection

Shaohui Li; Shugui Liu; Hongwei Zhang

doi:10.1117/12.889361

27 May 2011 3D shape measurement of optical free-form surface based on fringe projection

Shaohui Li, Shugui Liu, Hongwei Zhang

Proceedings Volume 8082, Optical Measurement Systems for Industrial Inspection VII; 80822Z (2011) https://doi.org/10.1117/12.889361
Event: SPIE Optical Metrology, 2011, Munich, Germany

Abstract

Present a novel method of 3D shape measurement of optical free-from surface based on fringe projection. A virtual reference surface is proposed which can be used to improve the detection efficiency and realize the automation of measuring process. Sinusoidal fringe patterns are projected to the high reflected surface of the measured object. The deflection fringe patterns that modulated by the object surface are captured by the CCD camera. The slope information can be obtained by analyzing the relationship between the phase deflectometry and the slope of the object surface. The wave-front reconstruction method is used to reconstruct the surface. With the application of fringe projection technology the accuracy of optical free-form surfaces measurement could reach the level of tens of micrometer or even micrometer.

Citation Download Citation

Shaohui Li, Shugui Liu, and Hongwei Zhang "3D shape measurement of optical free-form surface based on fringe projection", Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 80822Z (27 May 2011); https://doi.org/10.1117/12.889361

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