IGI - Integrated Geospatial Innovations

Photogrammetry and Laser Scanning on Single Aircraft

 

Diamond Aircraft, Austria, has introduced the new DA42 GEOSTAR that enables collecting laser scanning and photo-grammetry data during one single flight. The team of Diamond Airborne Sensing (subsidiary of Diamond Aircraft) announced it has succeeded in perfect sensor integration on the DA42 MPP, the most economic remote sensing platform worldwide. Both systems are integrated with sufficient resources for fuel and flight crew.

The GEOSTAR is able to complete incredible 10-hour survey flights with a range of up to 1,042 NM, equivalent to the flight route Copenhagen - Barcelona. At an altitude of 10,000 feet it can even collect data from areas of unbelievable 3,400 square kilometres, the size of the Spanish isle Mallorca, during one single flight only.

A photogrammetric camera, installed in a special pod on the aircraft’s nose, delivers accurate representations of the Earth's surface, so-called orthophotos (aerial photos). A laser-scanner captures the terrain topography by firing a laser and measuring the time it takes for the laser to be reflected back from a point. The result of the collected measurements is a digital terrain model in the form of a point cloud. The scanner is mounted on the belly of the aircraft in a specifically designed pod.

IGI supports the GEOSTAR by the integration of the aerial camera and the airborne laser scanner to IGI's flight guidance & sensor management system, CCNS-5 and IGI's AEROcontrol, the precise positioning system.

By merging the orthophoto with the point cloud you get a precise, realistic 3D model of the object. The GEOSTAR is particularly suited for surveying cities, land areas, critical infrastructure (such as pipelines), glaciers or snow fields, but also for mapping damages caused through natural disasters.

The special mission aircraft consists of state-of-the-art technology from renowned companies:

  • Long-range airborne laser-scanner LMS-Q780 from RIEGL Laser Measurement Systems
  • High-format photogrammetric camera Ultracam LP from Microsoft/VEXCEL Imaging
  • Gyro stabilisation mount SSM 350 L von SOMAG for drastic movement reduction of the camera
  • Flight guidance & sensor management system CCNS-5 from IGI
  • Precise positioning system AEROcontrol also from IGI

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Article was published on GEO Informatics and GIM International.

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