Knowledge Base - Version 19.7
Recent Changes
This is documentation of an archived release.
For documentation on the current version, please check Knowledge Base.

Prepare UAS Data using Agisoft

This page describes UAS data processed in Agisoft for Orbit.
Using the corresponding template from 3D Mapping Data Preparation and Import Templates the described resources can be imported into Orbit.

It is strongly recommend to read first Concepts of Mobile Mapping and UAS data in Orbit.

Nadir Images

Image files

  • Image type : Undistorted (corrected distortion and Central Principal Point) planar images.
  • File format : Each image is one *.jpg file.
  • File name : Exactly as in image positions file, see below.
  • Folder structure : All files in one folder.

Image Positions File

  • File format : One ascii file.
  • File structure Rows : first line - header, each image is one record.
  • File structure Columns : tab separated (char9), with exact order as the example below (more columns are allowed but first 7 should be as shown below).
  • Value of Filename : File name as on disk, with file extension.
  • Value of Coordinates : any supported coordinate system can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator.
  • Value of Angles “Omega;Phi;Kappa” : Omega, Phi, Kappa orientation angles, degrees.
# PhotoID Long/X Lat/Y Z Omega Phi Kappa
DSC01328.JPG    9.1830581940972653    50.6202563071236110    535.2429667634038400    -3.6025556510784855    -25.3026061023288770    172.7761479238264400
DSC01329.JPG    9.1830097722710953    50.6201218145098580    535.6859340796836500    -11.0461036448152770    -20.2803555401588370    155.7304217374755000
DSC01330.JPG    9.1828810915189845    50.6199834650880260    535.9759937470356600    -0.1345133524517933    0.2590160694965208    144.9827133187473600
DSC01331.JPG    9.1827489294243314    50.6198638927767060    536.3869365569054300    3.4273769524015605    3.6808305469446165    143.4867531117172300
DSC01332.JPG    9.1826152417857365    50.6197342748711140    536.2110347394258300    5.5948003329446889    7.0333625843782359    148.5384876191251100
DSC01333.JPG    9.1825100178669867    50.6196079583538890    535.8901804108077200    6.6419655639344928    14.8625373490425470    153.6359804519812300
...
In Agisoft post-processing software v1.4 export of Image Positions is called 'Export Cameras'. For more information please refer to Agisoft Manual

Camera calibration file

The camera calibration information can be found in the “Report” exported from Agisoft

  • File format : One *.pdf file, containing among others camera calibration information (camera name, sensor width in pixels, sensor height in pixels, sensor pixel size in micron, F pixels, Cx pixels, Cy pixels) and CRS.

The camera calibration parameters must be entered before Create Run, the 1st step of the Import Run procedure.
To facilitate import, your specific camera calibration values can be registered inside the Orbit template to avoid entering these values at import each time. Contact Orbit Support if assistance is needed.

Point Cloud

  • File format : One or more *.las files.
  • File structure : Las version 1.2.

Orthomosaic

The ortho is not a part of the UAS Mapping Run, it can be added separately to the Map view.
Convert the Orthomosaic file into *.omi format for enhanced performance.

 
Last modified:: 2019/07/31 07:25