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Roof rendering

My first map. I thought I checked all the boxes...please help.  DJI Mavic 2 Pro.  Metal roof, but the exposure on source images looks great, nothing blown out.  The Overlap Report seems to indicate the best overlap in the place with the worst rendering.  The take off elevation was about 2-3 meters higher than the property's parking lot and 2-3 meters below the roof level.  

Darrell Knoop

Official comment


The overlap looks OK but smooth metal roofs have nearly 0 features on them to match. The combination of the repeating pattern of the ribs and the featureless middle makes this kind of roof very hard to map well. 

From the Data Collection guidelines that are agreed to at the time of upload:

"Repeating Patterns - Since our processing relies on matching similar features, target areas with repeating patterns such as roofs or crops can confuse the system and make poor quality outputs."




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