isprs annals IV 2 W3 17 2017
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In this paper, two straightforward and easy to implement strategies will be described and analyzed, which improve the direct positioning accuracies for UAV-based mapping and
In a more quantitative way, from the 2011 image of the area of flight, it was possible to geo-reference the UAV image using ENVI and estimate the central pixel latitude and
It was shown that cm-level ground accuracy is achiev- able without GCPs with absolute and relative aerial observations derived from a low-cost receiver.. An integration of such a
The histograms in Figure 9 show the derived errors to the ground truth poses. Figure 9.a and 9.b show the spatial errors of our VGG16-Net respectively SqueezePoseNet to ground
Our experiments suggest that our algorithm yields a 3D reconstruction of the environment showing a low uncertainty in the probabilistic model and a trajectory with less changes
These results demonstrate how structure-and-motion and multi- view stereo algorithms can be successfully applied to create high detailed dense point cloud, 3D models and
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume IV-2/W3, 2017 International Conference on Unmanned Aerial Vehicles in Geomatics,
Image observations from D1 and D2, and absolute position and orientation control for the D2 ones, obtained from INS/GNSS (we assume that images from D2 are time-tagged via the
