Great performance of #pix4dfields over a citrus grove planted in a square layout!
Objective 
: Tree assessment and counting using the Magic Tool.
Conclusion:
Low-performing trees identified.
600 trees counted, 1% error.
1- Orthomosaic from high-resolution RGB drone imagery (4cm/pixel)
2 - Magic Tool in action, grid showing automatic classification, after some refinement by hand, selection done.
3 - Select Conver to “Area annotation”. Magic Tool provides an area annotation for each tree detected.
Afterward, separate it into single polygons. Click Edit, and Create single polygons.
4 - After exporting TGI index statistics per tree, low index trees can be identified.
Try it yourself! Download PIX4Dfields
Learn how to use the Magic tool: Magic tool | PIX4Dfields beginner tutorials - YouTube