Tag Archive
5 articles on GCPs. Field-tested methodology from a GIS scientist with M.S. GIS, FAA Part 107, and 10+ years of geospatial work.
Consumer drone mapping buyer's guide: DJI Mini 4 Pro vs Mini 3 Pro vs Autel Evo Nano+. Accuracy, rolling shutter, GCP needs — field-tested verdicts.
Four positioning tiers for drone surveys: GPS, RTK/PPK, GCPs, and full RTK+GCPs+checkpoints. Match accuracy to the job — not every project needs the top tier.
WebODM vs Metashape vs Pix4D vs RealityCapture compared for 2026: real pricing, processing speed, accuracy, and GCP workflow — which wins for survey reports, 3D meshes, and free pipelines.
RTK vs PPK for drone surveys: both hit 1-3cm accuracy. RTK corrects in real time, PPK processes post-flight. Failure modes, costs, when to use each.
How many GCPs does a drone survey need? 5 for under 5 acres, 8-12 for 50-500. Distribution beats density. Always include independent checkpoints.
Free download: The Complete Drone Mapping Workflow Guide — 30+ pages of field-tested methodology.
Technical content only. Unsubscribe anytime.