Tag: ground control points

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How Proper GCP Placement Delivers Centimeter-Accurate Results

How Proper GCP Placement Delivers Centimeter-Accurate Results

GCPs are the clearly marked points on the ground whose GPS coordinates are known. Aerial images are aligned during processing with the help of surveyors. Essentially, they serve as anchors for your data; therefore, GCPs ensure that the models you generate are accurate. Without GCPs, your results will probably shift or misalign. Using GCPs will…