Aerial Photos, Orthomosaics and 3D Models: What’s the Difference?
Mapping & Photogrammetry
A drone can produce much more than a collection of photographs. But aerial photos, orthomosaics and 3D models serve different purposes, and not every project needs all three.
Aerial Photography
Standard aerial photography captures individual images from selected angles and elevations. It is ideal for construction progress, commercial property documentation, roof and asset imagery, stakeholder updates and marketing. Sometimes, this is all a project needs.
Orthomosaic Maps
An orthomosaic is created by capturing many overlapping photographs across a site and processing them into one continuous top-down image. Unlike a traditional aerial photograph, an orthomosaic allows the viewer to see the entire captured area from above at once. It can be useful for site documentation, planning, progress comparison, property records and visual reference.
3D Site Models
Photogrammetry can also turn overlapping photographs into a three-dimensional visual representation of a site. A 3D model can be rotated and viewed from different angles, helping project teams better understand structures, terrain and spatial relationships.
Which one is right for your project?
It depends on what you are trying to accomplish. If you need clear visual progress updates, aerial photography may be enough.
If you want a complete top-down view of a site, an orthomosaic may be more useful.
If spatial context matters, a 3D model can add another layer of information.
These products are useful for documentation and planning, but standard drone mapping should not automatically be confused with certified land surveying or survey-grade deliverables.
Not sure what your project needs?
Send us the site location and intended use, and Marden Aerial can recommend the most appropriate capture approach.
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