An enhanced indirect video-based measurement procedure for dynamic structural system identification applications

• A novel video-based indirect measurement procedure for SHM projects. three-step modification process inappropriate conditions in video records. No need high-speed cameras and expensive record equipment. Experimental modal characteristics time history responses are the main outputs. Effective accurate field-measurement of historical structures. sensing dynamic identification purposes is presented. To overcome major limitations methods real on-site measurements, a three step pre-modification, magnification, post-modification developed. This includes revision initial input order to delete disturbing objects, utilizing magnification method filter frequency content monitored motion using elimination noises generated during process. Finally, set digital signal image processing analyses performed on modified virtual visual sensor technology. Based results this research, signals object detected. The proposed approach has been used two historic masonry minarets Istanbul. Results shows that able assess structure with high-level accuracy.