Comparison of a non-contact extensometer using image analysis and digital image correlation for non-contact displacement measurement
Abstract
Image analysis using computer vision represents a new approach for non-contact displacement measurement. This paper aims to compare the accuracy of a non-contact extensometer using image analysis and digital image correlation, which is currently considered as the standard in the field of non-contact extensometers. The accuracy comparison was performed for displacement measurements during the creep test. The measurements indicate that a non-contact extensometer using image analysis can serve as a complete alternative to traditional extensometers. The results provided by the introduced method showed very good agreement with the latter ones.
Fields of Study & Subjects
Optical measurement and interference techniques
Infrastructure Maintenance and Monitoring
Advanced Measurement and Detection Methods
Publication details
- Journal / source
- Transportation research procedia
- Volume
- 93
- Pages
- 334–339
- Publication date
- 1 January 2026
- Language
- EN