Abstract
Digital Image Correlation (DIC) is a new method of measuring material properties. DIC requires a fixed camera and a separate instrument to acquire images. The measurement position and orientation for the DIC measurement of a workpiece are severely constrained. Therefore, additional devices are required. In this study, only a marker with a grid pattern was attached, and a photograph of a specimen surface was captured without additional equipment. Specimen images were moved and tilted because the camera would shake during the experiment and the camera and specimen were not parallel. The acquired specimen images might be shifted or deformed. Sample images were acquired form various angles and then calibrated with perspective transformation by a developed algorithm and software. Surface strain (or deformation) field data were obtained using the calibrated specimen images and DIC. Therefore, the developed algorithm was verified by comparing the strain field data of the corrected DIC images.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Korean Society of Manufacturing Technology Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
