Prepare MM Data LiBackpack

This page describes LiBackpack (C50 and DGC50) Mobile Mapping resources for Orbit.
Using the according Orbit 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.

• Image type: equirectangular panoramas.
• Image resolution: Ratio 2×1
• File format: Each image is one *.jpg file.
• Filename: Exactly as filePath of image positions file, without the first part (path to the folder to which they belong).
  • Example: value for filePath in the Image Position File = 'Img/img4.jpg' → Filename is 'img4.jpg'
• Folder structure:
  • Organized in (a) subfolder(s) within the “original” folder of the run.
  • Sub folder name(s) : “Img”, see below
  • Example: filePath = “Img/img4.jpg” → Path to that image file is <Orbit run>\Panorama1\Original\Img\img4.jpg

• File format: One ASCII file.
• File structure Rows: Each image is one record.
• File structure Columns: Comma separated, headers, with exact order as in the example below.
• Value of filePath, column 0: Filename as on disk, with file extension and subfolder to which the image file belongs.
• Value of Coordinates: any supported coordinate system can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator. In the case of LiBackpack C50, the use of EPSG 3395 is advised, because these data are taken in a local system. For DGC50, the data are georeferenced, so users can choose the coordinate system that was used.

filePath,time,roll,pitch,heading,x,y,z
Img//img4.jpg,3.148,174.3836661,0.6821018,88.4273450,0.051,-0.181,0.230
Img//img5.jpg,4.148,174.3215960,0.6617442,88.7600099,0.054,-0.223,0.220
Img//img6.jpg,5.148,176.4526122,-0.1641862,89.6577228,0.133,-0.686,0.200
Img//img7.jpg,6.148,176.6726066,-0.0688405,87.6401731,0.033,-1.580,0.237
...

• File format: One or more *.las or *.laz files.
• Value of Coordinates: Same CRS as Photopositions.
• Value of Timestamps: Same Time Reference as Photopositions, see above.