Ground Control Points are used to georeference models while checkpoints (CPs) are used in the after-process to assess the absolute accuracy of the model. In contrast from last week, this week the GCPs was part of the workflow. We were supposed to process our image data with the Pix4DMapper and then make maps with the generated data in ArcGIS Pro. A point cloud data set, a few maps and a video was generated. Also, the class was about to use images over another area, the Wolf Paving site in Wisconsin. This week's focus lay on using the same techniques from last week but with the "small" difference of including GCPs. In this update, I will delve into this topic. When working with a project that demands Ground Control Points (GCP), knowing how to correctly position, measure and record GCPs can make all the difference.
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