Underwater digital image measurement using lens sleeves
- VernacularTitle:采用镜头套筒进行水下数字图像测量
- Author:
Shuang-shuang MAO
1
;
Li CHEN
1
;
Dong-sheng ZHANG
1
,
2
Author Information
1. Department of Mechanics, Shanghai University
2. Shanghai Key Laboratory of Mechanics in Energy Engineering
- Publication Type:Journal Article
- Keywords:
Digital image correlation (DIC);
Water environment;
Biological materials;
Mechanical testing;
Lens sleeves;
Image acquisition
- From:
Journal of Medical Biomechanics
2013;28(5):E538-E541
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the mechanical testing technique suitable for biological materials under water environment. Methods Based on digital image correlation (DIC) method, the unique lens sleeves which can avoid the distortion caused by underwater photography was designed, and this technique was applied to determining mechanical properties of the fish scales. Results The experiment on translation of the water sink indicated that the use of the designed lens sleeves could effectively reduce errors for underwater measurement with high precision; the mechanical testing on fish scales showed that different regions of the fish scales had obviously different mechanical properties, but the differences induced by regions of the dehydrated fish scales were significantly reduced. Conclusions The designed lens sleeves in this study can be applied to image acquisition effectively, and determination of mechanical properties of the biological materials under water environment was achieved using DIC method.
