Research on image filtering algorithm used for laser speckle pattern interferometry deformation measurement

Li Tao; Zaihua Yang; Wangmin Yi; Chenxu Duan; Yuhang Zhang; Ziwen Wang

doi:10.1117/12.2564702

17 April 2020 Research on image filtering algorithm used for laser speckle pattern interferometry deformation measurement

Li Tao, Zaihua Yang, Wangmin Yi, Chenxu Duan, Yuhang Zhang, Ziwen Wang

Author Affiliations +

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 114553O (2020) https://doi.org/10.1117/12.2564702
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

Laser speckle pattern interferometry is a kind of high-precision deformation measurement method by analyzing images of speckle patterns. Deformation of measured object can cause phase change of laser light reflected by the object and speckle fringe can be formed. The background noise is large and the phase jump is not clear in the image of speckle fringe. According to the character of the image, a kind of two-step filtering algorithm is used to enhance image quality. First, adaptive filtering algorithm is used to process original speckle fringe image. And then after three-dimensional phase image is formed by phase unwrapping of the speckle fringe phase image, mean smoothing filtering is used to reduce burr in three-dimensional phase image. The experimental results show that this two-step filtering algorithm can keep detail information in the speckle fringe image and get good deformation measurement results.

Citation Download Citation

Li Tao, Zaihua Yang, Wangmin Yi, Chenxu Duan, Yuhang Zhang, and Ziwen Wang "Research on image filtering algorithm used for laser speckle pattern interferometry deformation measurement", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 114553O (17 April 2020); https://doi.org/10.1117/12.2564702

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Image filtering

Speckle

Speckle pattern

Interferometry

Laser interferometry

Image enhancement

Image processing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years