LiDAR vs Photogrammetry: Choosing a 3D Mapping Method
How LiDAR and photogrammetry differ in measurement, outputs, environment, and project fit—and where they work together.
Different measurements, related goals
LiDAR directly measures ranges from emitted laser energy, while photogrammetry estimates three-dimensional structure from overlapping images. Both can create dense spatial datasets, but their behavior and supporting workflows differ.
Where each method is strong
Photogrammetry combines geometry with rich visual texture and can be highly effective where surfaces are visible in consistent imagery. LiDAR can sample complex geometry directly and provides a distinct path to point-cloud and terrain products.
A project decision, not a technology contest
The correct choice depends on the environment, required products, surface visibility, coverage, platform, positioning, schedule, and quality plan. Some programs benefit from integrating both methods.
Apply this to a project
The appropriate method depends on the environment, decision, control strategy, deliverables, and quality plan.
Discuss your project