semantic_scholare-Journal of Nondestructive Testing2026-08-01
Preliminary results for the evaluation of the influence of noise in Computer-Vision Sub-Pixel Algorithms for Displacement Monitoring
F. Allegrezza, F. Micozzi, Michele Morici, A. Zona, A. Dall’Asta
TL;DR: This study investigates and compares three different algorithms for real-time displacement extraction, evaluating their performance under controlled conditions through synthetic video sequences with exactly known imposed motion, and identifies their strengths and limitations.
Vision-based displacement measurement has gained considerable attention in Structural Health Monitoring (SHM), where the need to detect small structural motions with non-contact instrumentation has driven the development of subpixel estimation algorithms capable of achieving reso…