the volume calculate in drone2map is inaccurate, what are some other work arounds that calculate volumes from drone photos/with control?
I would recommend moving this question to a more appropriate space. You currently have it in My Esri questions which would be related to the My Esri site.
Maybe to Drone2Map for ArcGIS Drones, UAVs, UAS, and RPAs or Imagery and Remote Sensing would allow you to get better responses.
Retrieving data ...