Introduction: Building on Simulation FoundationsIn the previous installment of this series, we completed a crucial preparatory step—constructing a "virtual world" that adheres to strict physical optics laws and photogrammetry specifications. By simulating a UAV aerial survey workflow, we generated a synthetic dataset containing real terrain (DEM), camera poses, and feature point observations (tracks). This dataset grants us a "god's eye view": before the algorithm even runs, we already know the ground truth of the reconstruction.With reliabl...