Oblique Photography

We have been capturing and processing oblique imagery since 2005, and have covered more than 1,000 cities across Europe, as well as countless other bespoke collections. Utilizing our oblique camera system, we can capture areas big and small from 4cm up to 25cm GSD.

Oblique photography carries the benefits of a clearer view of detail on the ground, which can sometimes be hard to distinguish in traditional vertical imagery. The ability to see an object from four directions gives much more detail and understanding of the area.

The system when installed in a fixed wing aircraft brings the advantages of quick and efficient capture over large areas, as well as being able to capture at lower altitudes for increased resolution.

Contact us to discuss your requirements and to find out more about our Oblique Photography services.

Benefits

Rapid Capture
As with traditional aerial photography, we can fly large areas quickly with a fixed wing solution

High-resolution
Capture resolutions ranging from 4cm up to 20cm GSD. We can cater to all requirements

Fast Mobilization
Utilizing a fixed-wing aircraft, we can mobilize to site quickly and efficiently, ready to capture any project

Additional Products
Oblique photography provides a fantastic source for additional products such as DTMs, mapping, and even 3D models

Applications

Local Government
Multiple views of any location provide a rich dataset to generate reports for planning and recording asset inventory

Emergency Services
The ability to view, measure, and annotate directly on to imagery, provides an ideal tool for emergency response teams, event planning, and security

Property Management
Detailed imagery provides a wealth of information on any property, improving the overall selling potential

Utilities & Infrastructure
Oblique imagery offers asset managers a visual record and intelligence on any potential risks to stock

Capabilities

Our current oblique system uses 5 Canon EOS 1DS Mark III cameras, which produce 21MP imagery. Raw CR2 imagery can be acquired with a 2.5-second camera fire interval, whilst JPEG imagery can be acquired with a 1-second camera fire interval. The advantage with acquiring JPEG is that since the file size is smaller, it will take less time for the imagery to write to disc, and the pilot can fly faster. However, acquiring raw imagery is recommended if flying in low light.

Imagery and IMU data is saved to a 1TB SATA drive during the flight, and a backup is saved to a second disk, which the aircrew retain until the data is sent to the processing office and archived. Image quality can be checked during the flight by the system operator, who can use a display to review thumbnails of imagery and decide if particular flight lines need to be re-flown.

The system is compensated for both drift (automatic adjustment) and pitch (optional). Oblique camera angles are specified on order of the system and can be set from 30 to 60 degrees. All Cyient systems are set to 45 degrees to give a more natural look to the imagery and to maintain consistency with imagery acquired in previous years.

Camera Specifications

Cameras 5x Canon EOS 1D Mk III cameras
Lenses Vertical 50mm, Oblique 85mm
Image Size 5616 x 3744 px (21mp)
Oblique Camera Angle Fixed angle at 45 degrees, but can be configured to be between 30-60 degrees
In-flight Storage 2 x 1 Terabyte drives
Altitude Maximum of 4,000m (13,000 feet)
IMU Integrated Applanix POSAV 310