Lens distortion correction for digital image correlation by measuring rigid body displacement

2006 ◽  
Vol 45 (2) ◽  
pp. 023602 ◽  
Author(s):  
Saturu Yoneyama
Keyword(s):  
Digital Image Correlation ◽  
Rigid Body ◽  
Digital Image ◽  
Distortion Correction ◽  
Image Correlation ◽  
Lens Distortion ◽  
Rigid Body Displacement

Three-Dimensional Rigid Body Displacement Measurement Based on Digital Image Correlation

2008 ◽  
Vol 28 (5) ◽  
pp. 894-901 ◽  
Author(s):  
孙伟 Sun Wei ◽  
何小元 He Xiaoyuan ◽  
C. Quan Quan Chenggen ◽  
郑翔 Zheng Xiang
Keyword(s):  
Digital Image Correlation ◽  
Rigid Body ◽  
Digital Image ◽  
Three Dimensional ◽  
Displacement Measurement ◽  
Image Correlation ◽  
Rigid Body Displacement

Scalable Detection of Defects in Additively Manufactured PLA Components

2018 ◽  
Author(s):  
Amol Kulkarni ◽  
Amey Vidvans ◽  
Mustafa Rifat ◽  
Gregory Bicknell ◽  
Xi Gong ◽  
...  
Keyword(s):  
High Resolution ◽  
Digital Image Correlation ◽  
Rigid Body ◽  
Digital Image ◽  
High Speed ◽  
Rotation Speed ◽  
Image Correlation ◽  
High Speed Camera ◽  
Body Rotation

The present work delineates a novel and scalable approach to characterization of defects in additively manufactured components. The approach is based on digital image correlation and involves characterization of surface speeds during rigid body rotation of the workpiece, followed by normalization with respect to rotation speed. Towards this, two different imaging sources were tested, viz. smartphone camera and sophisticated high-resolution/high-speed camera. The proposed approach successfully delineated horizontal and vertical notch defects in a simple FDM fabricated component. Accuracy of this approach was tested with concomitant laser based scanning. Some limitations of this approach were discussed.

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