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Author Topic: Best practises (flight planning, processing settings) for tree reconstruction  (Read 1303 times)

Christina K

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Hi all,

I would like to initiate a discussion for best practices for accurate tree reconstruction on orchards, specially when trees are small and have a sparse upper canopy during blossom season (apples, pears etc)!
Currently, we aim for very sharp rgb orthomosaics in order to detect the amount of blossom per tree.

Flight parameters: so far we use 80% overlap,  double grid flight plan, sensor looking on nadir and flying altitude of around 40m.

Based on your experiences what are the optimum flight plan settings:
- Overlap:
- Sensor angle:
- Speed:
- Field conditions (sunny, not windy etc): (of course we cannot control that but just for reference)

For agisoft processing settings we generate a mesh-based rgb orthomosaic since we noticed that a dsm-based rgb orthomosaic suffers more from distortions. But even a mesh-based orthomosaic sometimes has artifacts (see image attached).
Based on your experiences what would you recommend settings-wise for a sharp looking without distortions rgb orthomosaic tif?
Perhaps some blending mode suffers less or has a better seam-line estimation?

Thank you in advance!
Christina