Processing & Software
Why Move WebODM to the Cloud? (And When Not To)
WebODM cloud vs local: AWS spot costs ($3-5/job), egress surprises, decision framework for when cloud wins vs when your workstation is better.
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Tag Archive
photogrammetry
18 articles on photogrammetry. Field-tested methodology from a GIS scientist with M.S. GIS, FAA Part 107, and 10+ years of geospatial work.
Software & Processing
OpenDroneMap & WebODM Ecosystem: ODX, NodeODX, ClusterODX, CloudODX (2026 Fork)
After WebODM split from OpenDroneMap in April 2026, two parallel stacks exist: WebODM's ODX/NodeODX/ClusterODX/CloudODX/PyODX vs OpenDroneMap's ODM/NodeODM/ClusterODM/PyODM. Architecture, naming, licensing, hardware, and vs Pix4D.
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Photogrammetry Workflow
Georeferenced NeRF vs Photogrammetry — Accuracy, Products, and When Each Wins
NeRF vs photogrammetry for drone mapping: accuracy numbers, output products, georeferencing limits, and a decision framework for when each wins.
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Data Processing
Processing Checklist: From Raw Images to Defensible Deliverables
Drone processing checklist: CRS setup, alignment QA, GCP integration, checkpoint validation, quality report review. Prevents accuracy failures.
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Drone Hardware
Best Consumer Drones for Mapping in 2026: Mini 4 Pro vs Mini 3 Pro vs Autel Evo Nano+
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.
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Survey Accuracy & GCPs
Coordinate Systems for Drone Operators: The CRS Mistakes Destroying Your Deliverables
WGS84 vs NAD83, state plane, vertical datums — the CRS settings drone operators get wrong, and how to fix them in Metashape, Pix4D, and ODM.
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Drone Mapping Fundamentals
What Is an Orthomosaic? The Practitioner's Guide to Georeferenced Drone Maps
An orthomosaic is a georeferenced image mosaic built from overlapping drone photos. How photogrammetry creates one, GSD, GeoTIFF vs COG, GIS use.
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Drone Mapping Fundamentals
DSM vs DTM vs DEM: What's the Difference and Which Do You Need?
DSM vs DTM vs DEM for drone operators: definitions, how each is derived from photogrammetry, ground classification, and when each product is required.
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LiDAR & Remote Sensing
LiDAR vs Photogrammetry for Drone Mapping: Accuracy, Cost, Decision Guide
LiDAR vs photogrammetry for drone surveys: real accuracy numbers, hardware costs, processing workflows, and a decision framework — when each technology wins, and when it doesn't.
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Featured Article
Software & Processing
WebODM Splits from OpenDroneMap (April 2026): Migration Guide
WebODM split from the OpenDroneMap nonprofit on April 6, 2026. What changed, why, and migration steps — new GitHub URLs, Docker images, docs.
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Software & Processing
WebODM vs Metashape vs Pix4D vs RealityCapture (2026): Full Comparison
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.
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Survey Accuracy & GCPs
Drone Survey Accuracy: RMSE, CE90, LE90, ASPRS Standards (2026)
Real drone survey accuracy in 2026: ±2–5 cm horizontal, ±3–12 cm vertical typical. RMSE vs CE90 vs LE90 explained, ASPRS classes, 5 red flags in any quality report.
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Survey Accuracy & GCPs
RTK vs PPK Drone Mapping: Which Should You Use?
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.
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Featured Article
Survey Accuracy & GCPs
Ground Control Points for Drone Surveys: How Many, Where, and Why
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.
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Featured Article
Software & Processing
PIX4Dmatic 2.0: What Surveyors Actually Need to Know
PIX4Dmatic 2.0 absorbs PIX4Dsurvey into three tiers. Full comparison vs Metashape and DJI Terra on price, accuracy, GCP workflows, and deliverables.
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Hardware & Equipment
The Ultimate Hardware Guide for Drone Mapping
Drone mapping hardware guide: CPU, GPU, RAM, NVMe requirements for photogrammetry. Workstation builds by project size and processing software.
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Data & Deliverables
What Is Drone Data?
Drone data explained: imagery, orthomosaics, point clouds, elevation models, 3D meshes. How photogrammetry turns photos into geospatial products.
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Getting Started
Welcome to AeroCartwright
AeroCartwright: drone mapping education and geospatial tools from a working GIS professional with firefighting, academic, and federal field experience.
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