Exploiting Image Assisted Total Station in Digital Image Correlation (DIC) displacement measurements: insights from laboratory experiments

The paper addresses a relevant subject in structural health monitoring for civil engineering applications such as bridges or other large structures. Experimental laboratory program on the accuracy and precision of remote displacement measurements was reported. Could an onboard optical camera Total Station (Image-Assisted (IATS) Leica Nova) be exploited to integrate measurement techniques even temporarily replace ordinary instrumental observations case instrument failure? experimental campaign carried out Institute Engineering Geodesy Measurement Systems Laboratory at Graz University Technology (Austria). In particular, pictures predetermined moving target, acquired from IATS’ (focal length 231 mm), have been processed through Digital Image Correlation (DIC) get displacements measures. obtained results were validated using “ground truth” assessed by equipment. same done, capturing with Single-Lens Reflex (DSLR) consumer 55 85 mm) setup. Once validated, comparison between DSLR returned very similar precision. outcomes suggest that comparable can achieved processing both camera.