Hi,
I have a few questions on importing the Trimble catalyst GCP coordinates into Photoscan.
So the trimble CSV file i export has the HPrecision (Horizontal precision) and VPrecision (vertical precision). However, when i import the markers as CSV file in Photoscan and i want to set the accuracy columns, it asks me for the Longitude and Latitude columns, yet i only have one Horizontal precision column and not for both Longitude and latitude individually. I would assume my CSV `HPrecision` is ((Longitude precision + latitude precision)/2) but when i enter the same `Hprecision` column number in the Agisoft CSV importer for both the Longitude and Latitude precision, it, after import divides the Hprecision/Vprecision. Is this correct?, If my HPrecision is say 0.7m and VPrecision 0.3, is it correct that the overall accuracy is 2.33 m?
Second question.
So the Trimble CSV gives me the `height above the ellipsoid (HAE)` in WGS84 instead of height above sea level. Is this good or should i somehow convert it to altitude above sea level?. For example those GCPs in the images were measured here in the Netherlands where we are about 0.8m above sea level, so saying a height of 44.8m sounds kind of strange. Thus far i was always used to my UAV images being geotagged with altitude above sea level. I read somewhere that this has something to do with the vertical reference not being in EGM96 but am not sure.
Thanks!
Topic: GCP coordinates from Trimble catalyst CSV (Read 3157 times)
