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Airborne LiDAR Compliance and Quality Assurance Tool (ComQAT). ComQAT. Accuracy of Control Network. Control Density Pass/Fail minimum points per square kilometre Score density of points per square kilometre ( e ) e = n / a where, a = project area (km 2 )
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Airborne LiDAR Compliance and Quality Assurance Tool(ComQAT)
Accuracy of Control Network Control Density • Pass/Fail minimum points per square kilometre • Score density of points per square kilometre (e) e = n / a where, a = project area (km2) n = number of CPs
Accuracy of Control Network Control Distribution • spread of points across the project area • how well points cover extremities of project • whether points are weighted to one side of the project Ideal distribution Average distribution Weak distribution Poor distribution
Absolute Vertical Accuracy Rate ‘flatness’ & ‘openness’ of area around each control point to determine suitability