Algorithm for directly retrieving the phase difference: a generalization

Kemao Qian; Anand Krishna Asundi

doi:10.1117/1.1573640

1 June 2003 Algorithm for directly retrieving the phase difference: a generalization

Kemao Qian, Anand Krishna Asundi

Optical Engineering, Vol. 42, Issue 6, (June 2003). https://doi.org/10.1117/1.1573640

Determination of phase difference is important in many applications of optical metrology. Algorithms for temporal phase difference measurement using the Fourier transform and phase shifting methods are available. These algorithms are first shown to be equivalent and then are generalized for spatial phase difference measurements and a spatial carrier phase shifting method. The efficiency of the algorithm is verified by two examples for slope and curvature determination.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Kemao Qian and Anand Krishna Asundi "Algorithm for directly retrieving the phase difference: a generalization," Optical Engineering 42(6), (1 June 2003). https://doi.org/10.1117/1.1573640

Published: 1 June 2003

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