Direct Georeferencing of Airborne Photographs
- Author: O.Conrad (c) 2012
- 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 | - | - |
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 Interpolation [2] Bicubic Spline Interpolation [3] B-Spline Interpolation 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 | |
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_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 Interpolation [2] Bicubic Spline Interpolation [3] B-Spline Interpolation 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_FITS: Fit choice Available Choices: [0] nodes [1] cells Default: 0 -TARGET_TEMPLATE: Target System grid, input, optional