Offset estimation Failed

[durerimon]

Hi, I am relatively new to ISCE. I was running the following code I get an error. My questions are what is causing the issue and how can I solve it? Working on ALOS Palser Images. I am using https://drive.google.com/file/d/1-oZOt9xWbfVJ67sEWUJTgUotGqT7sue5/view?usp=sharing this document for reference. The error below is from step 5 (Filtering the artifacts), however the topophase.flat named output from step 4 (Building the interferogram) is also missing, although no error was shown. Any help is appreciated!

`` isce@ISCE:~/Assign2$ insarApp.py --start=rgoffset --end=correct 2022-01-14 22:41:20,171 - isce.insar - INFO - ISCE VERSION = 2.2.0, RELEASE_SVN_REVISION = 2497,RELEASE_DATE = 20180714, CURRENT_SVN_REVISION = Unknown ISCE VERSION = 2.2.0, RELEASE_SVN_REVISION = 2497,RELEASE_DATE = 20180714, CURRENT_SVN_REVISION = Unknown Step processing Loaded the application's pickle object, _insar from file PICKLE/shadecpx2rg Running step rgoffset GDAL open (R): resampImage.amp.vrt GDAL open (R): simamp.rdr.vrt Bands: 0 0 Setting first image to real 1 Setting second image to real 1 wisdomFile, length = 0 across step size: 61.6455688
down step size: 76.6962051
Input lines: 6383 7372 Input bands: 1 1 Input widths: 5194 5194 On line, location 0 187 On line, location 10 953 On line, location 20 1720 On line, location 30 2487 On line, location 40 3254 On line, location 50 4021 On line, location 60 4788 On line, location 70 5555 2022-01-14 22:41:39,586 - isce.insar.runRgoffset - INFO - #################################################################################################### runRgoffset - Inputs

runRgoffset.inputs.across_gross_offset = 0 runRgoffset.inputs.band1 = 0 runRgoffset.inputs.band2 = 0 runRgoffset.inputs.debug_flag = n runRgoffset.inputs.down_gross_offset = 0 runRgoffset.inputs.down_spacing_prf1 = 2164.5021645022002 runRgoffset.inputs.down_spacing_prf2 = 2164.5021645022002 runRgoffset.inputs.family = estimateoffsets runRgoffset.inputs.first_sample_across = 123 runRgoffset.inputs.first_sample_down = 123 runRgoffset.inputs.iscomplex_image1 = False runRgoffset.inputs.iscomplex_image2 = False runRgoffset.inputs.last_sample_across = 5121 runRgoffset.inputs.last_sample_down = 6310 runRgoffset.inputs.name = insarapp_intsim_estoffset runRgoffset.inputs.number_windows_across = 80 runRgoffset.inputs.number_windows_down = 80 runRgoffset.inputs.oversampling_factor = 16 runRgoffset.inputs.search_window_size = 20 runRgoffset.inputs.window_size = 32 runRgoffset.inputs.zoom_window_size = 8 #################################################################################################### 2022-01-14 22:41:39,620 - isce.insar.runRgoffset - INFO - #################################################################################################### runRgoffset - Outputs

runRgoffset.outputs.LOCATION_ACROSS = catalog/runRgoffset.outputs.LOCATION_ACROSS.000 runRgoffset.outputs.LOCATION_ACROSS_OFFSET = catalog/runRgoffset.outputs.LOCATION_ACROSS_OFFSET.001 runRgoffset.outputs.LOCATION_DOWN = catalog/runRgoffset.outputs.LOCATION_DOWN.002 runRgoffset.outputs.LOCATION_DOWN_OFFSET = catalog/runRgoffset.outputs.LOCATION_DOWN_OFFSET.003 runRgoffset.outputs.SNR = catalog/runRgoffset.outputs.SNR.004 #################################################################################################### GDAL close: resampImage.amp.vrt GDAL close: simamp.rdr.vrt Dumping the application's pickle object _insar to file PICKLE/rgoffset The remaining steps are (in order): ['rg_outliers2', 'resamp_only', 'settopoint2', 'correct', 'coherence', 'filter', 'mask', 'unwrap', 'unwrap2stage', 'geocode'] Running step rg_outliers2 2022-01-14 22:41:44,463 - isce.insar.runOffoutliers - INFO - Error limit = 100 2022-01-14 22:41:44,467 - isce.insar.runOffoutliers - INFO - Culling offset field outliers 2022-01-14 22:41:44,470 - isce.insar.runOffoutliers - INFO - Number of input offsets: 6400 2022-01-14 22:41:44,471 - isce.insar.runOffoutliers - INFO - Distance: 10.000000 2022-01-14 22:41:44,476 - isceobj.Location.OffsetField - INFO - 5744 offsets culled

1-D calculation:

      Slope across  Intercept:

Across: 1.22675381E-04 -0.126194537 Down: 8.54811733E-05 -0.977508783

2022-01-14 22:41:44,478 - isce.insar.runOffoutliers - INFO - #################################################################################################### runOffoutliers - Inputs

runOffoutliers.inputs.DISTANCE = 10.0 runOffoutliers.inputs.family = _family runOffoutliers.inputs.metadata_location = runOffoutliers.inputs.name = _family_name #################################################################################################### 2022-01-14 22:41:44,479 - isce.insar.runOffoutliers - INFO - #################################################################################################### runOffoutliers - Outputs

#################################################################################################### 2022-01-14 22:41:44,571 - isce.insar.runOffoutliers - INFO - Number of offsets left after culling: 576 2022-01-14 22:41:44,572 - isce.insar.runOffoutliers - INFO - Error limit = 100 2022-01-14 22:41:44,572 - isce.insar.runOffoutliers - INFO - Culling offset field outliers 2022-01-14 22:41:44,572 - isce.insar.runOffoutliers - INFO - Number of input offsets: 576 2022-01-14 22:41:44,572 - isce.insar.runOffoutliers - INFO - Distance: 5.000000 2022-01-14 22:41:44,573 - isceobj.Location.OffsetField - INFO - 0 offsets culled

1-D calculation:

      Slope across  Intercept:

Across: 5.15227148E-04 -0.452301294 Down: 4.78002417E-04 -3.04747891

2022-01-14 22:41:44,575 - isce.insar.runOffoutliers - INFO - #################################################################################################### runOffoutliers - Inputs

runOffoutliers.inputs.DISTANCE = 5.0 runOffoutliers.inputs.family = _family runOffoutliers.inputs.metadata_location = runOffoutliers.inputs.name = _family_name #################################################################################################### 2022-01-14 22:41:44,575 - isce.insar.runOffoutliers - INFO - #################################################################################################### runOffoutliers - Outputs

#################################################################################################### 2022-01-14 22:41:44,593 - isce.insar.runOffoutliers - INFO - Number of offsets left after culling: 98 2022-01-14 22:41:44,593 - isce.insar.runOffoutliers - ERROR - Small number of output Offsets after culling: 98 . Increase number of windows (or) window sizes (or) provide gross offset manually. Traceback (most recent call last): File "/home/isce/isce/install/isce/applications/insarApp.py", line 1191, in status = insar.run() File "/home/isce/isce/install/isce/components/iscesys/Component/Application.py", line 129, in run exitStatus = self._processSteps() File "/home/isce/isce/install/isce/components/iscesys/Component/Application.py", line 392, in _processSteps result = func(*pargs, **kwargs) File "/home/isce/isce/install/isce/applications/insarApp.py", line 898, in iterate_runOffoutliers list(map(self.runOffoutliers, iterator, erriterator)) File "/home/isce/isce/install/isce/components/isceobj/InsarProc/Factories.py", line 53, in call return self.method(self.other, *args, **kwargs) File "/home/isce/isce/install/isce/components/isceobj/InsarProc/runOffoutliers.py", line 60, in runOffoutliers raise Exception('Offset estimation Failed.') Exception: Offset estimation Failed.``

[gyp-1991-gq]

Can it be installed on Windows 10?

[durerimon]

I guess you can.

[EJFielding]

Hi @durerimon, the old insarApp.py application is not supported since a few years ago. You should use the newer stripmapApp.py for processing ALOS data.