SARCorrelationGrid¶
Computes SAR correlation shift (into temporal domain).
Description¶
This application computes correlation shifts between two images : shift in range and shift in azimut. The inputs of this application are MultiLooked images (real images).
Parameters¶
Input Master image (real image) -inmaster image Mandatory
Master Image (real image).
Input Slave image (real image) -inslave image Mandatory
Slave Image (real image).
MultiLook factor on distance -mlran int Default value: 3
MultiLook factor on distance.
MultiLook factor on azimut -mlazi int Default value: 3
MultiLook factor on azimut.
Grid step for range dimension (into SLC/SAR geometry) -gridsteprange int Default value: 150
Grid step for range dimension (into SLC/SAR geometry).
Grid step for azimut dimension (into SLC/SAR geometry) -gridstepazimut int Default value: 150
Grid step for azimut dimension (into SLC/SAR geometry).
Set 0 to offset of first Line and Colunm of output grid -nooffset int Default value: 0
If 1, then no offset for the first L/C if output grid.
Output Correlation grid (Vector Image) -out image [dtype] Mandatory
Output Correlation Grid Vector Image (Shift_ran, Shift_azi, Correlation_rate).
Available RAM (MB) -ram int Default value: 256
Available memory for processing (in MB).
Examples¶
From the command-line:
otbcli_SARCorrelationGrid -inmaster s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_ML.tiff -inslave s1b-s4-slc-vv-20160929t014610-20160929t014634-002277-003d71-002_ML.tiff -out out_CorrelationGrid.tiff
From Python:
import otbApplication
app = otbApplication.Registry.CreateApplication("SARCorrelationGrid")
app.SetParameterString("inmaster", "s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_ML.tiff")
app.SetParameterString("inslave", "s1b-s4-slc-vv-20160929t014610-20160929t014634-002277-003d71-002_ML.tiff")
app.SetParameterString("out", "out_CorrelationGrid.tiff")
app.ExecuteAndWriteOutput()
Limitations¶
Only Sentinel 1 (IW and StripMap mode) and Cosmo products are supported for now.