A Crack Width Measurement Method of UAV Images Using High-Resolution Algorithms

The need for maintenance is increasing due to the aging of facilities. In this study, we proposed a crack width measurement method images collected at safe distances using UAVs (Unmanned Aerial Vehicles). It measuring widths cracks high-resolution (VDSR) algorithm, which measures by resolution taken 3 m intervals on wall where exist. addition, value was compared with general photographed image and conversion image. As result, it confirmed that high applied similar actual measured value. These results can help improve practical applicability facility safety inspections overcoming limits camera between facilities introduced in inspection. However, more detailed required quantitatively measure width; intend through additional studies.