Direct Georeferencing of Airborne Photographs

Author(s)	O.Conrad (c) 2012
Library ID	pj_georeference
Tool ID	4
Version	1.0
Menu	Projection \| Georeferencing

Description

Direct georeferencing of aerial photographs uses extrinsic (position, altitude) 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. PDF

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Unreferenced Grids	grid list, input	`INPUT`	-	-
	Elevation	grid, input, optional	`DEM`	-	-
	Target System	grid, input, optional	`TARGET_TEMPLATE`	use this grid's system for output grids	-
Output	Referenced Grids	grid list, output	`OUTPUT`	-	-
Output	Extent	shapes, output, optional	`EXTENT`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Grid system	grid system	`DEM_GRIDSYSTEM`	-	-
	Default	floating point number	`DEM_DEFAULT`	default value if no grid has been selected	Default: 0.000000
	Focal Length [mm]	floating point number	`CFL`	-	Minimum: 0.000000 Default: 80.000000
	CCD Physical Pixel Size [micron]	floating point number	`PXSIZE`	-	Minimum: 0.000000 Default: 5.200000
	X	floating point number	`X`	-	Default: 0.000000
	Y	floating point number	`Y`	-	Default: 0.000000
	Z	floating point number	`Z`	-	Default: 1000.000000
	Omega	floating point number	`OMEGA`	X axis rotation angle [degree] (roll)	Default: 0.000000
	Phi	floating point number	`PHI`	Y axis rotation angle [degree] (pitch)	Default: 0.000000
	Kappa	floating point number	`KAPPA`	Z axis rotation angle [degree] (heading)	Default: 0.000000
	Offset	floating point number	`KAPPA_OFF`	origin adjustment angle [degree] for kappa (Z axis, heading)	Default: 90.000000
	Orientation	choice	`ORIENTATION`	-	Available Choices: [0] BLUH [1] PATB Default: 0
	Row Order	choice	`ROW_ORDER`	-	Available Choices: [0] top down [1] bottom up Default: 0
	Resampling	choice	`RESAMPLING`	-	Available Choices: [0] Nearest Neighbour [1] Bilinear [2] Cubic 1 [3] Cubic 2 Default: 3
	Data Type	data type	`DATA_TYPE`	-	Available Choices: [0] unsigned 1 byte integer [1] signed 1 byte integer [2] unsigned 2 byte integer [3] signed 2 byte integer [4] unsigned 4 byte integer [5] signed 4 byte integer [6] unsigned 8 byte integer [7] signed 8 byte integer [8] 4 byte floating point number [9] 8 byte floating point number [10] same as original Default: 10
	Target Grid System	choice	`TARGET_DEFINITION`	-	Available Choices: [0] user defined [1] grid or grid system Default: 0
	Cellsize	floating point number	`TARGET_USER_SIZE`	-	Minimum: 0.000000 Default: 1.000000
	West	floating point number	`TARGET_USER_XMIN`	-	Default: 0.000000
	East	floating point number	`TARGET_USER_XMAX`	-	Default: 100.000000
	South	floating point number	`TARGET_USER_YMIN`	-	Default: 0.000000
	North	floating point number	`TARGET_USER_YMAX`	-	Default: 100.000000
	Columns	integer number	`TARGET_USER_COLS`	Number of cells in East-West direction.	Minimum: 1 Default: 101
	Rows	integer number	`TARGET_USER_ROWS`	Number of cells in North-South direction.	Minimum: 1 Default: 101
	Rounding	boolean	`TARGET_USER_FLAT`	Round bounding coordinates to multiples of cell size. Ignored if cell size has decimal places.	Default: 1
	Fit	choice	`TARGET_USER_FITS`	-	Available Choices: [0] nodes [1] cells Default: 0
	Grid System	grid system	`TARGET_SYSTEM`	-	-

Command Line


Usage: saga_cmd pj_georeference 4 [-INPUT ] [-OUTPUT ] [-EXTENT ] [-DEM ] [-DEM_DEFAULT ] [-CFL ] [-PXSIZE ] [-X ] [-Y ] [-Z ] [-OMEGA ] [-PHI ] [-KAPPA ] [-KAPPA_OFF ] [-ORIENTATION ] [-ROW_ORDER ] [-RESAMPLING ] [-DATA_TYPE ] [-TARGET_DEFINITION ] [-TARGET_USER_SIZE ] [-TARGET_USER_XMIN ] [-TARGET_USER_XMAX ] [-TARGET_USER_YMIN ] [-TARGET_USER_YMAX ] [-TARGET_USER_COLS ] [-TARGET_USER_ROWS ] [-TARGET_USER_FLAT ] [-TARGET_USER_FITS ] [-TARGET_TEMPLATE ]
  -INPUT:                 Unreferenced Grids
	grid list, input
  -OUTPUT:                Referenced Grids
	grid list, output
  -EXTENT:                Extent
	shapes, output, optional
  -DEM:                   Elevation
	grid, input, optional
  -DEM_DEFAULT:        Default
	floating point number
	Default: 0.000000
  -CFL:                Focal Length [mm]
	floating point number
	Minimum: 0.000000
	Default: 80.000000
  -PXSIZE:
                               CCD Physical Pixel Size [micron]
                               	floating point number
                               	Minimum: 0.000000
                               	Default: 5.200000
  -X:                  X
	floating point number
	Default: 0.000000
  -Y:                  Y
	floating point number
	Default: 0.000000
  -Z:                  Z
	floating point number
	Default: 1000.000000
  -OMEGA:              Omega
	floating point number
	Default: 0.000000
  -PHI:                Phi
	floating point number
	Default: 0.000000
  -KAPPA:              Kappa
	floating point number
	Default: 0.000000
  -KAPPA_OFF:          Offset
	floating point number
	Default: 90.000000
  -ORIENTATION:           Orientation
	choice
	Available Choices:
	[0] BLUH
	[1] PATB
	Default: 0
  -ROW_ORDER:             Row Order
	choice
	Available Choices:
	[0] top down
	[1] bottom up
	Default: 0
  -RESAMPLING:
                               Resampling
                               	choice
                               	Available Choices:
                               	[0] Nearest Neighbour
                               	[1] Bilinear
                               	[2] Cubic 1
                               	[3] Cubic 2
                               	Default: 3
  -DATA_TYPE:
                               Data Type
                               	data type
                               	Available Choices:
                               	[0] unsigned 1 byte integer
                               	[1] signed 1 byte integer
                               	[2] unsigned 2 byte integer
                               	[3] signed 2 byte integer
                               	[4] unsigned 4 byte integer
                               	[5] signed 4 byte integer
                               	[6] unsigned 8 byte integer
                               	[7] signed 8 byte integer
                               	[8] 4 byte floating point number
                               	[9] 8 byte floating point number
                               	[10] same as original
                               	Default: 10
  -TARGET_DEFINITION:
                               Target Grid System
                               	choice
                               	Available Choices:
                               	[0] user defined
                               	[1] grid or grid system
                               	Default: 0
  -TARGET_USER_SIZE:   Cellsize
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_XMIN:   West
	floating point number
	Default: 0.000000
  -TARGET_USER_XMAX:   East
	floating point number
	Default: 100.000000
  -TARGET_USER_YMIN:   South
	floating point number
	Default: 0.000000
  -TARGET_USER_YMAX:   North
	floating point number
	Default: 100.000000
  -TARGET_USER_COLS:      Columns
	integer number
	Minimum: 1
	Default: 101
  -TARGET_USER_ROWS:      Rows
	integer number
	Minimum: 1
	Default: 101
  -TARGET_USER_FLAT:      Rounding
	boolean
	Default: 1
  -TARGET_USER_FITS:      Fit
	choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:       Target System
	grid, input, optional