Single‐camera special stereo‐digital image correlation applied for accurate virtual fields method identification

Strain ◽  
2019 ◽  
Vol 55 (5) ◽  
Author(s):  
Zhongya Zhang ◽  
Jiaqing Zhao ◽  
Yuxi Chi
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Image Correlation ◽  
Single Camera ◽  
Virtual Fields Method ◽  
Stereo Digital Image Correlation

Stereo-Digital Image Correlation (DIC) measurements with a single camera using a biprism

2013 ◽  
Vol 51 (3) ◽  
pp. 278-285 ◽  
Author(s):  
K. Genovese ◽  
L. Casaletto ◽  
J.A. Rayas ◽  
V. Flores ◽  
Amalia Martinez
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Image Correlation ◽  
Single Camera ◽  
Stereo Digital Image Correlation

scholarly journals A Simple and Practical Single-Camera Stereo-Digital Image Correlation Using a Color Camera and X-Cube Prism

Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4726 ◽  
Author(s):  
Bo Dong ◽  
Fancang Zeng ◽  
Bing Pan
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
High Speed ◽  
Image Correlation ◽  
Single Camera ◽  
Full Field ◽  
3D Shape ◽  
Stereo Digital Image Correlation ◽  
Deformation Measurements ◽  
Dic Technique

A simple and practical full-frame single-camera stereo-digital image correlation (stereo-DIC) technique for three-dimensional (3D) shape, displacement, and deformation measurements is proposed. The technique uses a compact X-cube prism-based color separation device and a color camera to capture images of blue and red colors from different optical paths, and then extracts the surface 3D shape and deformation information of a test sample by processing the captured two sub-channel color images using regular stereo-DIC algorithm. Compared with the existing full-frame single-camera stereo-DICs, the proposed one eliminates the need for a beam splitter and two bandpass filters to capture images, and offers more simple, compact, and easy-to-use optical arrangement. This novel single-camera stereo-DIC technique was validated by a series of baseline experiments involving 3D surface reconstructions, translation tests, and full-field deformation measurements, which provide a new flexible and practical avenue for measuring surface 3D shape and deformation, particularly in microscopic and high-speed applications.

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