Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Subtitle:
Article type: Research Article
Authors: Shen, Huana; b; * | Zhang, Peizea | Shen, Xiangb
Affiliations: [a] Energy and Power College, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China | [b] Aeronautics Science and Technology Key Laboratory, Full Scale Aircraft Structure and Fatigue, Xi'an, Shaanxi, China
Correspondence: [*] Corresponding author: Huan Shen, Energy and Power College, Nanjing University of Aeronautics and Astronautics, No. 29, Yudao Street, Baixia District, Nanjing 210016, Jiangsu, China. E-mail:huan_shen@nuaa.edu.cn
Abstract: A self-adaptive smoothing method is proposed to deal with the displacement field obtained via digital image correlation (DIC). This new smoothing method is based on penalized least squares regression technique, which can penalize the roughness of the displacement and realize displacement denoising. In this method, generalized cross validation (GCV) method and discrete cosine transform (DCT) are used to get penalized parameter and true displacement from the noisy displacement field separately. This method has advantages of easy implementation, little calculation requirement, complete automation and so on. Both simulation analyses and experimental results validate the effectiveness of this smoothing technology, which can improve the strain distribution differentiated by the smoothed displacement without any calculation increasement.
Keywords: Image denoising, regularization
DOI: 10.3233/JCM-150537
Journal: Journal of Computational Methods in Sciences and Engineering, vol. 15, no. 2, pp. 241-250, 2015
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
sales@iospress.com
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
info@iospress.nl
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office info@iospress.nl
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
china@iospress.cn
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
如果您在出版方面需要帮助或有任何建, 件至: editorial@iospress.nl