Photogrammetry Workflow Guide
How to Create a Georeferenced NeRF from Drone Imagery
Build georeferenced NeRFs from drone imagery: RTK/PPK integration, COLMAP geo-registration, Nerfstudio, point cloud export, checkpoint validation.
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Tag Archive
PPK
5 articles on PPK. Field-tested methodology from a GIS scientist with M.S. GIS, FAA Part 107, and 10+ years of geospatial work.
Regulations
BVLOS Drone Operations for Mapping: What You Need to Know
BVLOS for mapping: where proposed Part 108 stands as of October 2026, the waiver process, equipment, PPK workflows, and corridor crew-savings math.
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Survey Accuracy & GCPs
Drone Survey Positioning: GPS vs RTK/PPK vs GCPs Explained
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.
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Survey Accuracy & GCPs
RTK vs PPK Drone Mapping: Accuracy, Range, Which to Use
RTK vs PPK for drone mapping: same hardware, different timing. Sourced accuracy figures, baseline limits, costs, and a table for when to use each.
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Featured Article
Survey Accuracy & GCPs
Ground Control Points for Drone Surveys: How Many, Where, and Why
How many ground control points does a drone survey need? 5 GCPs for under 5 acres, 8–12 for 50–500. Distribution beats density — and always include independent checkpoints.
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