Accuracy analysis of MAMS data using direct georeferencing

The conventional airborne photogrammetry is difficult to implement in some areas, such as marine, deserts, grassland and high mountain regions where the installation of ground control point (GCP) is dangerous or impossible. With the availability of integrated GPS and inertial measurement units (IMU), which are also called POS, this situation is improved. Direct Georeferencing (DG) using the approach of direct determination of exterior orientation parameters is now possible. This paper discussed the calculation of the sensor's exterior orientation parameters through DG, geometric correction and accuracy assessment of images captured by Marine Airborne Multi-spectral Scanner (MAMS) system.