Digital aerial photography capture

 

Using the best available equipment of its class, we also have developed our own techniques to capture clear and sharp imagery. It all starts with meteorology, monitoring the appropriate period of the year as well as choosing the best moment of the day.

 

Sun angle, tides, cloud and smoke cover risks are also factors that are taken into account. Maximising the exceptional performance of the camera with the subject to be photographed needs years of experience.

 

A strict quality control from on-board real-time viewing of the recorded imagery during the flight to the post-processing is paramount to obtain the best possible imagery for photogrammetric use. Digital photography has been proven to be more cost-effective than traditional film without compromising on geometric quality. In fact, the new digital airborne sensors outperform film in terms of accuracy and radiometry

 

High resolution digital photography

Nowadays, the market is demanding for higher resolution, better quality and a faster delivery of the imagery.

 

Our company adapts constantly to the market pressure. 15 cm ground pixel size as standard resolution for urban coverage will be soon obsolete.

 

With the UltraCam cameras we can go down to 2.5 cm ground pixel size for specific projects.

 

 

Shallow water penetration

One of the unique advantages of the NIR band with the UltraCam camera is the capability to penetrate shallow water.

 

This means that we are able to map the seabed or riverbed up to 10 meters of depth depending on the sediment layer.

 

 

 

 

 

 

 

 

Near Infrared digital aerial photography

One of the killer applications of the UltraCam camera system is its ability to record simultaneously the RGB and NIR bands.

 

 This opens the door to a range of possibilities such as environmental studies, agriculture analysis and even vegetation filtering in DTM creation.

 

 

 

 

The unique radiometry advantage

The UltraCam has astonishing radiometric properties allowing seeing details in dark areas as well as in highlights. Not much less than 13 bit of radiometric information can be extracted via the 14 bit analog/digital converter.

 

 This means better identification and interpretation and increased performance in photogrammetric data capture.

 

 Image auto-correlation process is improved, multi-ray matching is optimised for better stereo accuracy.