Spacemetric's software has achieved unsurpassed geometric accuracy in operational environments for many years. The key factors are:

• Precision: Analytical LOS models that are rigorous and well calibrated allow precise modelling of the sensor geometry.
• Robustness: The use of analytical models with carefully weighted parameters makes it possible to achieve high accuracy even when there is limited access to ground control.

The models allow ½ pixel accuracy or better to be achieved if the ground control is of sufficient quality. This has been verified through long operational use by customers including Metria Kiruna, Sweden and DMC International Imaging, UK. Here is a short article summarising accuracy testing for Formosat-2 carried out for the European Commission's Joint Research Centre.

The performance of Spacemetric's software systems is also documented in several scientific papers. A selection is provided in the Technical Papers section.