Processing DJI Phantom 4 RTK photos in Agisoft Metashape

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This quick tutorial goes through how to import and align photos captured with a DJI Phantom 4 RTK using a network RTK service (Swepos). We also compare the result with one ground control point (GCP) measured on the ground. In this clip there is no optimization of the alignment or filtering. We plan to publish one more clip going through that. For more information about the processing: www.rslab.se/agisoft-photoscan-pro
Many thanks to Christian Badenfelt from Textdata (www.textdata.se) for providing the data used in the tutorial.

Опубликовано:

11 сен 2024

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Комментарии : 12

@andrearomanofitaly4115 Год назад

YOU re the BEST ! Thank you so much

@FPSBELGIUM Год назад

Hello, which key on the keyboard do you press to switch from one photo to another?

@dainel40 2 года назад

How do you adjust the altitude to get the proper elevation for the point cloud?

@marinomazor.adventures 10 месяцев назад

So although you used RTK model you needed to make GCP? It was not possible to get accurate model without them with just RTK drone?

@SrkyHN 4 года назад

Is it necessary to set control points with RTK? Do you need to do post processing with rtk?

@ZED-PV 5 лет назад

How many GCPs do you use per 10 HA let's say? How has your result been with just RTK geotags on the photos and no GCPs? I'm a bit confused how Metashape will accurately judge the true height of ground level with just RTK geotags.

@dahaproject3498 4 года назад

when use GCP (with RTK GPS) with phantom 3 pro, the result is same?

@allanjarrettbasi78 3 года назад

I'm using a DJI phantom 4 RTK and it's Base Station. My question is if I'm did my survey WGS84, while processing can I switch to our local datum using AGISOFT Metashape? Thanks

@muzo583 5 лет назад

You did not optimize camera calibration thus you have 30 cm error on height values. Or you can use field camera calibrations as known pre calibrated camera parameters.

@brettjames9088 5 лет назад

So you've defined the geoid under custom protection and given it a unique name?

@Ljungbergslaboratoriet 5 лет назад

I'm not sure I understand your question. The geoid is downloaded from Agisoft's website (www.agisoft.com/downloads/geoids/) and copied into the Metashape installation directory. The geoid I'm using (RH2000) is the one used in Sweden with the Sweref99 coordinate system. The geoid is a raster covering the entire area where the coordinate system is defined, for sweref99 it is all of Sweden. In Metashape I don't need to define anything, just copy the file downloaded into the Metashape installation directory and Metashape will use it automatically with the right geoid (RH2000 in my case) if it has the same name as when you downloaded the file. I hope this answered your question?