Articles on LiDAR
iPhone LiDAR or drone LiDAR: which one suits your site
iPhone LiDAR or drone LiDAR: what each can measure, where a phone falls short and how to tell whether your plot or site needs a proper survey.
Drone LiDAR sensor: how to choose between three bids
Drone LiDAR sensor: what to check when three bids propose different sensors. Returns, density, trajectory and quality control to decide with confidence.
Point cloud: what it is and how it is classified
What a point cloud is, how LiDAR or photogrammetry captures it and how it is classified into ground, vegetation and buildings to build a reliable DTM.
LiDAR survey specification: what it should include
What a LiDAR survey specification should include: reference system, point density, classification, checkpoints, RMSE and acceptance criteria.
What is LiDAR and how is it used in mapping?
What is LiDAR, how a drone LiDAR sensor works and what it delivers: point clouds, a DTM under vegetation and contour lines with checked accuracy.
PNOA LiDAR and IGN open data: a guide to download and use
Guide to Spain's IGN open data: PNOA LiDAR, DTM, DSM and orthophotos. Comparison table, how to download them step by step and when you need your own flight.
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