Definition
Oblique imagery is aerial photography taken at an angle rather than straight down. Because the camera looks across the scene, oblique images capture the sides of buildings and other vertical features, giving a more natural, intuitive view of a place.
This contrasts with vertical imagery, which looks directly downward and shows mainly rooftops and the ground. Oblique views make it easier to recognise structures and understand their height and appearance.
In simple terms, oblique imagery is angled aerial photography that shows both the tops and the sides of things.
How It Works
Oblique imagery is captured by pointing the camera at an angle from an aircraft or drone, often flying patterns that photograph a site from several directions. This ensures the sides of buildings and features are recorded, not just their tops.
The angled views can be used on their own for visual interpretation or combined with vertical imagery in photogrammetry to build more complete 3D models. Capturing from multiple directions helps reconstruct facades and vertical surfaces accurately.
Applications
Oblique imagery is used in mapping, planning, insurance, and public safety. It helps assess buildings, measure heights and facades, support emergency response, and create realistic 3D city models. It is valuable wherever the sides of structures matter, not just their footprints.
Benefits
- Reveals building sides and vertical features.
- More intuitive, recognisable views.
- Supports facade measurement and assessment.
- Improves 3D reconstruction when combined with vertical imagery.
- Useful for planning, insurance, and safety.
Related Terms
- Aerial Mapping
- Aerial Photogrammetry
- Orthophoto
- Drone Mapping
Frequently Asked Questions
What is oblique imagery used for?
It is used to view and assess the sides of buildings and features for mapping, planning, insurance, and 3D modelling.
What is the difference between oblique and vertical imagery?
Vertical imagery looks straight down and shows mainly rooftops, while oblique imagery is angled and reveals building sides and heights.
How is oblique imagery captured?
It is captured by pointing the camera at an angle from an aircraft or drone, often from several directions around a site.
Why combine oblique and vertical imagery?
Combining them helps photogrammetry reconstruct both the tops and sides of structures for more complete 3D models.
About Track3D
Track3D helps teams turn aerial imagery into accurate digital twins and reality capture insights. Learn more at Track3D.
