Verification for an efficient method of dam body inspection that integrates 3D reconstruction technology and anomaly detection

Abstract

Conventional crack maps for dam structures are based on visual inspection by skilled engineers. Due to aging and labor shortages, efficient, less manual methods are needed. This study applied anomaly detection as a screening step for crack map creation, improving detection speed and accuracy. Additionally, for images affected by inconsistent lighting, the effect of post-capture color correction on 3D reconstruction and anomaly detection was evaluated, confirming its usefulness.