The accuracy that you set in the Image Properties Editor - Image Geolocations depend on the actual accuracy of the image geolocation and is, typically, defined as the accuracy of the GPS unit on the drone.
There are 3 options:
Standard : Useful when having very accurate image geolocation. Sets the values to:
- Accuracy Horz: 5m.
- Accuracy Vert: 10m.
Low : Useful when having non accurate image geolocation. Sets the values to:
- Accuracy Horz: 50m.
- Accuracy Vert: 100m.
Custom : Allows to set other values or edit the accuracy of each individual image or of a group of images.
The higher the accuracy numerical value (m or ft), the less influence the image’s coordinates will have in the_ Initial Processing _compared to other images or GCPs with lower accuracy numerical values (m or ft). The accuracy is a value between 0.001 and 10’000.