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**Image / data processing pipeline.** - Drone imagery comes in many flavors — RGB stills, thermal video, multispectral bundles, LiDAR point clouds. Each has its own processing chain. - **Per-image vs orthomosaic:** you can process single frames, or stitch hundreds of overlapping frames into an **orthomosaic** (georeferenced, scale-uniform map). - **LiDAR** needs specialized software to build a classified point cloud → DEM/DSM → GIS. - **Platforms commonly used:** - **ERDAS Imagine** — classical RS heavyweight. - **ArcGIS Pro** — general-purpose GIS; handles imagery and LiDAR. - **ArcGIS Drone2Map** — specifically for UAV imagery → orthomosaic + DEM. - Other photogrammetry apps: Pix4D, Agisoft Metashape, WebODM.

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