WHAT IS DIRECT GEOREFERENCING (DG)?

 

 

Our GNSS-Inertial technology is designed to reduce the cost and improve the efficiency of in-motion surveys by “Directly Georeferencing” each point of sensor data without extensive Ground Control Points (GCPs) or mapping trajectory overlap. DG significantly improves productivity by increasing the area that can be mapped, while simultaneously reducing in-field surveying time.

 

Applanix draws upon decades of experience with multi-frequency, multi-constellation Differential GNSS and inertial-based positioning and orientation, to make Direct Georeferencing possible in any environment, anywhere you are – whether in the air, on land, or out on the water.

Working with DG Means:

 

  • a worry-free solution built for all environments
  • rugged, yet lightweight hardware
  • powerful, but not power-hungry technology
  • custom designed components engineered to tightly integrate all of the enabling technologies
  • proven accuracy
  • global support

 

DG Explained

To compute the position and orientation of an imaging payload to a very high degree of accuracy and precision, our DG solutions use multi-frequency, multi-constellation RTK and post-processed carrier phase Differential GNSS tightly integrated with calibrated inertial sensors. For Photogrammetric applications, the Exterior Orientation (EO) of each image is pre-computed before any point-matching or adjustment phase. Unlike a PPK position-only DGNSS solution, having the full position and orientation of the payload eliminates all issues associated with: automatic project set-up, failed point matching, and reduced sidelap.

Our DG solutions work with all mapping sensors, including: RGB cameras, NIR cameras, Thermal cameras, LiDAR, SAR, Multispectral and Hyperspectral cameras. The georeferencing can be done in real-time or, for highest accuracy, in post-mission using Applanix POSPac MMS Software.

Customers using DG on UAVs

Customers using DG on Manned Aircraft

POSPac MMS & UAV: Industry-leading software for Direct Georeferencing of mobile mapping sensors

APX-15 UAV: Engineered for UAVs

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