High-resolution measurement of phase-shift amplitude and numeric object phase calculation

Georg Wiora

doi:10.1117/12.404832

23 October 2000 High-resolution measurement of phase-shift amplitude and numeric object phase calculation

Georg Wiora

Proceedings Volume 4117, Vision Geometry IX; (2000) https://doi.org/10.1117/12.404832
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A new method for measuring the object independent irradiance function for combined Gray-code and phase-shift 3-D measurement systems is presented. The irradiance functions of the projected sinusoidal patterns are measured with high resolution in the phase space without leaving the signal chain of the measurement system. This preserves the system specific distortions of the projected intensity functions. The system specific irradiance functions can be used to compute the object phase numerically. It can be shown that the systematic error of phase shift measurement caused by non sinusoidal phase-shift patterns and phase shifter mis-calibration can be reduced significantly.

Citation Download Citation

Georg Wiora "High-resolution measurement of phase-shift amplitude and numeric object phase calculation", Proc. SPIE 4117, Vision Geometry IX, (23 October 2000); https://doi.org/10.1117/12.404832

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