Application of digital-image correlation method to dynamic displacement measurements

2002 ◽  
Author(s):  
Yuwen Qin ◽  
Baohui Liu ◽  
Xinhua Ji ◽  
Y.Y. Hung
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Correlation Method ◽  
Image Correlation ◽  
Dynamic Displacement ◽  
Digital Image Correlation Method ◽  
Displacement Measurements

Error Analysis of Displacement Measurements Based on Digital Image Correlation Method

2013 ◽  
Vol 333-335 ◽  
pp. 207-214
Author(s):  
Si Yuan Lin ◽  
Ke Wang ◽  
Yue Chen Fan ◽  
Tao Yan ◽  
Neng He
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Correlation Method ◽  
Image Correlation ◽  
Displacement Sensor ◽  
Laser Displacement Sensor ◽  
Intersection Angle ◽  
Error Sources ◽  
Digital Image Correlation Method ◽  
Displacement Measurements

The error of displacement measurements by digital image correlation method is examined from a pratical perspective. Different from previous research, this study focuses on external factors influencing the accuracy of displacement measurement in the study of cooperative mark recognition and camera placement. Our major objectives of this research include indentificating the chief error sources and assessing their influences on the testing results. There are 5 parts in this paper. We start with a brief introduction of the necessity of analyzing the errors. After reviewing the principles of digital image correlation method, an detailed discussion of error soureces of this method is provided. Then we design a pratical experiment measuring the characteristics of a spring vibrator using the digital image correlation mesurement systems and laser displacement sensor. By comparing the results from two ways of measurment, we end the study with the conclusion that the accuracy of displacement measuring by digital image correlation method is tightly related to the choice of cooperative mark and camera intersection angle.

High-speed digital-image correlation method

2009 ◽  
Vol 34 (13) ◽  
pp. 1955 ◽  
Author(s):  
Min Wang ◽  
Hao Wang ◽  
Yuwan Cen
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
High Speed ◽  
Correlation Method ◽  
Image Correlation ◽  
Digital Image Correlation Method
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