Accuracies & Coordinate Systems
Model Reprocessing & Editing Geo-Referencing Method
DatuBIM users can reprocess drone imagery and data to improve model accuracy by adding ground control points (GCPs) or simply changing the geo-referencing method. Reprocessing a model can be done without the need to open a new site and re-upload ...
Using Check Points
While in the process of marking GCP’s it is possible to mark any GCP as a check point using the check box next to it as shown below. Check points are marked clearly on the map. Check points should be marked in at least 2 images as the case with the ...
Measurement Accuracy
In geo-referenced flights, the accuracy of measurements made on the 3D model by DatuBIM depends on the following parameters: The camera resolution and the distance between the camera and the measured object. The accuracy of measurements made by ...
GCP Accuracy
Ground Control Points (GCP) Accuracies Measuring precise ground control point is very essential to getting a precise 3D model. Below are some recommendation as to how to select and measure GCP"s Accurately measure the position and elevation of the ...
Field Work
Choosing your Camera and Lens The following guidelines and recommendations will help you choose an optimal camera and lens for surveying work: · Use a high-resolution camera. It is recommended to use a camera with at least an 18-megapixel resolution. ...