Use of standard deviation measurements for the contrast enhancement of speckle addition fringe patterns

Fernando Mendoza Santoyo

doi:10.1117/12.2316258

1 September 1996 Use of standard deviation measurements for the contrast enhancement of speckle addition fringe patterns

Fernando Mendoza Santoyo

Author Affiliations +

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778FT (1996) https://doi.org/10.1117/12.2316258
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

The electronic speckle pattern interferometer in the double pulse addition mode can be used to measure physical parameters in unstable environmental conditions. However, due to additive speckle noise the fringe patterns obtained have poor contrast. Some methods that use subtraction of addition double-pulsed fringe patterns improve fringe visibility but impose a limitation in measurement time ranges. In order to increase this range, to be limited only by the pulse separation, the contrast enhancement of double-pulsed addition fringe patterns using a spatial filter based on local standard deviation measurements is investigated. Computer simulations and experimental results are presented.

Citation Download Citation

Fernando Mendoza Santoyo "Use of standard deviation measurements for the contrast enhancement of speckle addition fringe patterns", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778FT (1 September 1996); https://doi.org/10.1117/12.2316258

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