Thorsten's Blog (8)

Announcing Mavis

We are happy to announce Mavis - a new UAV photogrammetry and mapping software.

Mavis is specifically designed for agricultural, archeological and mining surveys.

Mavis covers the entire workflow from single UAV images to GIS ready maps. It comprises precise georeferencing, on-site image analysis and stitching, image preprocessing, the…


Added by Thorsten on February 16, 2016 at 1:52pm — 21 Comments

GPS positional accuracy III

Hi all,

this is a short follow-up on my previous tests (I, II) with u-blox different u-blox M8 GPS modules.



Added by Thorsten on January 13, 2016 at 4:39am — 23 Comments

Google’s Cyber Drone Crashed

From Bloomberg:

The unmanned Solara 50 fell to the ground shortly after takeoff on May 1 and the U.S. National Transportation Safety Board is investigating, Keith Holloway, an agency spokesman, said in an…


Added by Thorsten on May 30, 2015 at 7:41am — 3 Comments

GeoUAV Workshop, 1-2 October 2015, La Grande Motte, France

GeoUAV is a specialized Workshop in the frame of the ISPRS Geospatial Week 2015. Dedicated to Unmanned Aerial Vehicles (UAV), it will bring the…


Added by Thorsten on March 27, 2015 at 1:46pm — 2 Comments

Some tests on GPS, geotagging and stitching accuracy

Hi all,

I want to share some results of comparisons between different GPS modules as well as different approaches for geotagging and stitching images based on APM:Copter log files.

CAM_TRIGG_DIST (blue) vs. adjusted coordinates (green). Stitching is based on corrected coordinates.


The background is…


Added by Thorsten on December 28, 2014 at 2:00pm — 89 Comments

3D reconstruction of largest Hallstatt tumulus grave in central Europe (T3 entry)

Hi all!

This is my entry for the T3 Season 2 - The Model challenge: 

A survey of the earliest Celtic lunar calendar based on free open source tools



Added by Thorsten on February 1, 2014 at 5:02am — 20 Comments

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