This is documentation of a bèta release.
For documentation on the current version, please check Knowledge Base.

3DT Scanfly Lidar

This page describes the original 3DT Scanfly data import for aerial mapping resource creation.

To import the described original data, use the corresponding Orbit Import Template.
It is recommended to read first Orbit Mapping Resource.

Trajectory

Trajectory positions file

  • File : one ascii txt file.
  • File structure Rows : Each trajectory timestamp is one record.
  • File structure Columns : Comma separated (char44), headers, with exact order as the example below.
  • Value of Timestamps “Timestamp” : GPS Absolute time or GPS Week time, decimal notation.
  • Value of Coordinates : any supported coordinate system can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator.
Timestamp,X,Y,Z,Pan,Tilt,Roll,X_Rms,Y_Rms,Z_Rms
...

Planars

Image files

  • Image type : Undistroted images.
  • File format : Each image is one *.jpg file.
  • File name : Exactly as Image ID of photo position file, see below
  • Folder structure : all image files of one camera in one folder

Image positions files

  • File format : one ascii txt file for each camera.
  • File structure Rows : Each image is one record.
  • File structure Columns : Comma separated (char44), no headers, with exact order as the example below.
  • Value of “Timestamps”, column 1 : Same Time Reference as Trajectory, see above.
  • Value of “Filename”, column 2 : 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
Timestamp,Filename,X,Y,Z,Roll,Tilt,Pan
...

Camera calibration file

  • SensorSizePIXX: Sensor Size width (Pixels)
  • SensorSizePIXY: Sensor Size Height (Pixels)
  • SensorSizeXMM: Sensor Size Width (mm)
  • FocalLenghtMM: Focal Length (mm)
  • PIXEL_SIZE: Pixel Size (micron)

LiDAR

Point cloud files

  • File format : One or more Supported Resources
  • Value of Coordinates : Same CRS as Trajectory, see above.
  • Value of Timestamps : Same Time Reference as Trajectory, see above.
 
Last modified:: 2023/09/08 16:16