SAGA-GIS Module Library Documentation (v2.3.0)

Module Direct Georeferencing of Airborne Photographs

Direct georeferencing of aerial photographs uses extrinsic (position, attitude) and intrinsic (focal length, physical pixel size) camera parameters. Orthorectification routine supports additional data from a Digital Elevation Model (DEM).

References:
Baumker, M. / Heimes, F.J. (2001): New Calibration and Computing Method for Direct Georeferencing of Image and Scanner Data Using the Position and Angular Data of an Hybrid Inertial Navigation System. OEEPE Workshop, Integrated Sensor Orientation, Hannover 2001. online.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputUnreferenced GridsGrid list (input)INPUT--
Elevation (*)Grid (optional input)DEM--
OutputReferenced GridsGrid list (output)OUTPUT--
Extent (*)Shapes (optional output)EXTENT--
OptionsGrid systemGrid systemPARAMETERS_GRID_SYSTEMGrid system-
Grid systemGrid systemDEM_GRIDSYSTEM--
Default Reference HeightFloating pointZREF-Default: 0.000000
XFloating pointX-Default: 0.000000
YFloating pointY-Default: 0.000000
Flying HeightFloating pointZ-Default: 1000.000000
OrientationChoiceORIENTATION-Available Choices:
[0] BLUH
[1] PATB
Default: 0
Omega [degree]Floating pointOMEGArotation around the X axis (roll)Default: 0.000000
Phi [degree]Floating pointPHIrotation around the Y axis (pitch)Default: 0.000000
Kappa [degree]Floating pointKAPPArotation around the Z axis (heading)Default: 0.000000
Kappa Offset [degree]Floating pointKAPPA_OFForigin adjustment for Z axis (heading)Default: 90.000000
Focal Length [mm]Floating pointCFL-Minimum: 0.000000
Default: 80.000000
CCD Physical Pixel Size [micron]Floating pointPXSIZE-Minimum: 0.000000
Default: 5.200000
ResamplingChoiceRESAMPLING-Available Choices:
[0] Nearest Neighbour
[1] Bilinear Interpolation
[2] Bicubic Spline Interpolation
[3] B-Spline Interpolation
Default: 3
Data Storage TypeChoiceDATA_TYPE-Available Choices:
[0] 1 byte unsigned integer
[1] 1 byte signed integer
[2] 2 byte unsigned integer
[3] 2 byte signed integer
[4] 4 byte unsigned integer
[5] 4 byte signed integer
[6] 4 byte floating point
[7] 8 byte floating point
[8] same as original
Default: 8
Row OrderChoiceROW_ORDER-Available Choices:
[0] top down
[1] bottom up
Default: 0
(*) optional

Command-line

Usage: saga_cmd pj_georeference 4 [-INPUT <str>] [-OUTPUT <str>] [-EXTENT <str>] [-DEM <str>] [-ZREF <double>] [-X <double>] [-Y <double>] [-Z <double>] [-ORIENTATION <str>] [-OMEGA <double>] [-PHI <double>] [-KAPPA <double>] [-KAPPA_OFF <double>] [-CFL <double>] [-PXSIZE <double>] [-RESAMPLING <str>] [-DATA_TYPE <str>] [-ROW_ORDER <str>] [-TARGET_DEFINITION <str>] [-TARGET_USER_SIZE <double>] [-TARGET_USER_XMIN <double>] [-TARGET_USER_XMAX <double>] [-TARGET_USER_YMIN <double>] [-TARGET_USER_YMAX <double>] [-TARGET_USER_FITS <str>] [-TARGET_TEMPLATE <str>]
  -INPUT:<str>              	Unreferenced Grids
	Grid list (input)
  -OUTPUT:<str>             	Referenced Grids
	Grid list (output)
  -EXTENT:<str>             	Extent
	Shapes (optional output)
  -DEM:<str>                	Elevation
	Grid (optional input)
  -ZREF:<double>            	Default Reference Height
	Floating point
	Default: 0.000000
  -X:<double>               	X
	Floating point
	Default: 0.000000
  -Y:<double>               	Y
	Floating point
	Default: 0.000000
  -Z:<double>               	Flying Height
	Floating point
	Default: 1000.000000
  -ORIENTATION:<str>        	Orientation
	Choice
	Available Choices:
	[0] BLUH
	[1] PATB
	Default: 0
  -OMEGA:<double>           	Omega [degree]
	Floating point
	Default: 0.000000
  -PHI:<double>             	Phi [degree]
	Floating point
	Default: 0.000000
  -KAPPA:<double>           	Kappa [degree]
	Floating point
	Default: 0.000000
  -KAPPA_OFF:<double>       	Kappa Offset [degree]
	Floating point
	Default: 90.000000
  -CFL:<double>             	Focal Length [mm]
	Floating point
	Minimum: 0.000000
	Default: 80.000000
  -PXSIZE:<double>          	CCD Physical Pixel Size [micron]
	Floating point
	Minimum: 0.000000
	Default: 5.200000
  -RESAMPLING:<str>         	Resampling
	Choice
	Available Choices:
	[0] Nearest Neighbour
	[1] Bilinear Interpolation
	[2] Bicubic Spline Interpolation
	[3] B-Spline Interpolation
	Default: 3
  -DATA_TYPE:<str>          	Data Storage Type
	Choice
	Available Choices:
	[0] 1 byte unsigned integer
	[1] 1 byte signed integer
	[2] 2 byte unsigned integer
	[3] 2 byte signed integer
	[4] 4 byte unsigned integer
	[5] 4 byte signed integer
	[6] 4 byte floating point
	[7] 8 byte floating point
	[8] same as original
	Default: 8
  -ROW_ORDER:<str>          	Row Order
	Choice
	Available Choices:
	[0] top down
	[1] bottom up
	Default: 0
  -TARGET_DEFINITION:<str>  	Target Grid System
	Choice
	Available Choices:
	[0] user defined
	[1] grid or grid system
	Default: 0
  -TARGET_USER_SIZE:<double>	Cellsize
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_XMIN:<double>	Left
	Floating point
	Default: 0.000000
  -TARGET_USER_XMAX:<double>	Right
	Floating point
	Default: 100.000000
  -TARGET_USER_YMIN:<double>	Bottom
	Floating point
	Default: 0.000000
  -TARGET_USER_YMAX:<double>	Top
	Floating point
	Default: 100.000000
  -TARGET_USER_FITS:<str>   	Fit
	Choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:<str>    	Target System
	Grid (optional input)