梅州地区滑坡灾变数值航空摄影测量研究

his study addresses frequent landslide disasters along expressways in Meizhou by proposing a monitoring method based on numerical aerial photogrammetry. High-resolution images were captured using a DMC digital camera mounted on UAV, and processed through ERDAS IMAGINE's LPS module for aerotriangulation, orthophoto correction, and digital terrain model (DTM) reconstruction. The results demonstrate that this approach efficiently generates orthophotos and DTMs, overcoming limitations of traditional methods (e.g., theodolites, GPS) in efficiency and cost, providing reliable data for landslide mechanism analysis and intelligent prevention.