Warning messages of run_06_overlap_resample and run_07_pairs_misreg

[TiejunLiu]

Dear all,

I'm performing sentinel time series analysis under the guidance of isce2stamps manual. While I got some warning and caution messages during execution of the run_06_overlap_resample and run_07_pairs_misreg files which were generated by "stackSentinel.py -s ../stack -d ../dem/demLat_N34_N37_Lon_E101_E105.dem.wgs84 -m 20200726 -r 4 -z 1 --num_proc4topo 2 -o orbit -a PAUX -b '35.7 35.95 103.175 103.6' -W slc -n '1'".
I'm not sure how much impact these issues will have on the results, and I wonder what caused those issues.
Could anyone please give me some suggestions, many thanks.

####################### run_06_overlap_resample #############################
Functions to be executed:
['Function-1']
Running: resamp_withCarrier
['--secondary', '/media/insar/isce0316/secondarys/20200328', '--reference', '/media/insar/isce0316/reference', '--coregdir', '/media/insar/isce0316/coreg_secondarys/20200328', '--overlap']
This is the Open Source version of ISCE.
Some of the workflows depend on a separate licensed package.
To obtain the licensed package, please make a request for ISCE
through the website: https://download.jpl.nasa.gov/ops/request/index.cfm.
Alternatively, if you are a member, or can become a member of WinSAR
you may be able to obtain access to a version of the licensed sofware at
https://winsar.unavco.org/software/isce
Estimated burst offset: 0
Shifts: {0: 0, 1: 1}
Polynomial Order: 0 - by - 0
0
Polynomial Order: 0 - by - 0
0
Chi squared: 0.000206
Polynomial Order: 5 - by - 3
13251.3 -504.772 -21.117 -0.0306174
-51375.5 2249.35 -13.5081 -2.24292
49795.7 -2463.5 106.981 3.7268
-4.63039e-09 5.52408e-09 -1.93686e-09 0
3.23647e-09 -1.59441e-09 0 0
-8.51514e-10 0 0 0
Misfit radians - Max: 0.0007467846571671544 , Min : -0.0004015938302472932
True
2021-03-16 17:06:50,567 - isce.stdproc.resamp_slc - WARNING - The variable INPUT_LINES has been set to the default value 1497 which is the number of lines in the slc image.
2021-03-16 17:06:50,568 - isce.stdproc.resamp_slc - WARNING - The variable INPUT_WIDTH has been set to the default value 21508 which is the width of the slc image.
GDAL open (R): /media/insar/isce0316/secondarys/20200328/IW1/burst_01.slc.vrt
API open (WR): /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/burst_top_01_02.slc
No Range Carrier provided.
Assuming zero range carrier.
Polynomial Order: 0 - by - 0
0
Polynomial Order: 0 - by - 0
0
Polynomial Order: 5 - by - 3
13251.3 -504.772 -21.117 -0.0306174
-51375.5 2249.35 -13.5081 -2.24292
49795.7 -2463.5 106.981 3.7268
-4.63039e-09 5.52408e-09 -1.93686e-09 0
3.23647e-09 -1.59441e-09 0 0
-8.51514e-10 0 0 0
Polynomial Order: 0 - by - 0
0
Polynomial Order: 0 - by - 0
0
GDAL open (R): /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/range_top_01_02.off.vrt
GDAL open (R): /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/azimuth_top_01_02.off.vrt
Polynomial Order: 0 - by - 2
0.0885256 756.645 -814288

<< Resample one image to another image coordinates >>

Input Image Dimensions:
21508 pixels
1497 lines

Output Image Dimensions:
21508 pixels
118 lines

Number of threads: 8
Complex data interpolation
Initializing Sinc interpolator
Azimuth Carrier Poly
Polynomial Order: 5 - by - 3
13251.3 -504.772 -21.117 -0.0306174
-51375.5 2249.35 -13.5081 -2.24292
49795.7 -2463.5 106.981 3.7268
-4.63039e-09 5.52408e-09 -1.93686e-09 0
3.23647e-09 -1.59441e-09 0 0
-8.51514e-10 0 0 0
Range Carrier Poly
Polynomial Order: 0 - by - 0
0
Range offsets poly
Polynomial Order: 0 - by - 0
0
Azimuth offsets poly
Polynomial Order: 0 - by - 0
0
Reading in the image
At line 1000
Interpolating image
Elapsed time: 3.53515625
GDAL close: /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/range_top_01_02.off.vrt
GDAL close: /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/azimuth_top_01_02.off.vrt
GDAL close: /media/insar/isce0316/secondarys/20200328/IW1/burst_01.slc.vrt
API close: /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/burst_top_01_02.slc
API open (R): /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/burst_top_01_02.slc
API close: /media/insar/isce0316/coreg_secondarys/20200328/overlap/IW1/burst_top_01_02.slc
Adjust valid samples
Before: 632 20454
Offsets : 0 0
After: 632 20454
Adjust valid lines
Before: 0 118
Offsets : 0 0
After: 0 118
After: 0 118
Chi squared: 0.000030
Polynomial Order: 5 - by - 3
13251.8 -694.606 17.2595 0.89773
-51377.4 2617.25 -88.5844 -3.61332
49797.7 -2463.35 106.954 3.72576
-4.43253e-09 5.31617e-09 -1.82494e-09 0
3.01198e-09 -1.51531e-09 0 0
-7.50788e-10 0 0 0
Misfit radians - Max: 0.00010295398351445328 , Min : -0.00019138489551551174
True
2021-03-16 17:07:01,836 - isce.stdproc.resamp_slc - WARNING - The variable INPUT_LINES has been set to the default value 1497 which is the number of lines in the slc image.
2021-03-16 17:07:01,837 - isce.stdproc.resamp_slc - WARNING - The variable INPUT_WIDTH has been set to the default value 21508 which is the width of the slc image.
###############################################################################

########################## run_07_pairs_misreg ##########################
Running: estimateRangeMisreg
['--reference', '/media/insar/isce0316/coreg_secondarys/20200104', '--secondary', '/media/insar/isce0316/coreg_secondarys/20200116', '--out_range', '/media/insar/isce0316/misreg/range/pairs/20200104_20200116/20200104_20200116.txt', '--snr_threshold', '10']
GDAL open (R): /media/insar/isce0316/coreg_secondarys/20200104/overlap/IW1/burst_top_01_02.slc.vrt
GDAL open (R): /media/insar/isce0316/coreg_secondarys/20200116/overlap/IW1/burst_top_01_02.slc.vrt
Scale Factor in Range: 1.0
Scale Factor in Azimuth: 1.0
Skip Sample Down: 4
Skip Sample Across: 495
Input Bands: 1 1
XXX start timer
wisdomFile, length = 0
CAUTION - Requesting very large search window pull in
Reference Window Size is 64 sample pixels
Number of Search Pixels is 16 sample pixels
The rule of thumb is that the search window pull in is at least 5
pixels and is less than the reference window size divided by 5.
Suggested Number of Search Pixels is 11 sample pixels

CAUTION - Requesting very large search window pull in
Reference Window Size is 32 line pixels
Number of Search Pixels is 16 line pixels
The rule of thumb is that the search window pull in is at least 5
pixels and is less than the reference window size divided by 5.
Suggested Number of Search Pixels is 5 line pixels

Requested resolving shifts to 1/ 64 of a pixel

INFORMATION - you choose skips which are small for your window sizes
Normally the skip size is bigger than the box size
Across your skip is 495 but your window is 64
Down your skip is 4 but your window is 32
This means that the image chips are larger than the separation between chips

At line = 17
XXX time for inner loop 0.286208153
At line = 21
XXX time for inner loop 0.286523104
At line = 25
XXX time for inner loop 0.286612988
At line = 29
XXX time for inner loop 0.287276268
At line = 33
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.286752701
At line = 37
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.283573627
At line = 41
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.280780792
At line = 45
XXX time for inner loop 0.292196751
At line = 49
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.282749176
At line = 53
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.284775257
At line = 57
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.277517796
At line = 61
e vector 2 error
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 0.277466774
At line = 65
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.60815430E-03
At line = 69
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.56047058E-03
At line = 73
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.82797623E-03
At line = 77
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.88662720E-03
At line = 81
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.74309921E-03
At line = 85
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 5.22804260E-03
At line = 89
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.68778610E-03
At line = 93
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.61292267E-03
At line = 97
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.62627411E-03
At line = 101
Bad match at level 1
......
Bad match at level 1
XXX time for inner loop 4.61673737E-03
Elapsed time. 7.40417719
GDAL close: /media/insar/isce0316/coreg_secondarys/20200104/overlap/IW1/burst_top_01_02.slc.vrt
GDAL close: /media/insar/isce0316/coreg_secondarys/20200116/overlap/IW1/burst_top_01_02.slc.vrt
####################################################

[tonianr]

I've been getting similar messages while running refineSecondaryTiming, I'm attempting stripmaptsack (terrasarX) to StaMPS.

stackStripMap.py --slc_directory /home/toni/WCF_TerraSARX_processing/scenes/HS_021/SLC/
--dem /home/toni/WCF_TerraSARX_processing/scenes/HS_021/DEM/Hernando_07_FDEM_SW_WGS84_EGM96.dem.wgs84
--azimuth_looks 1
--range_looks 2
--time_threshold 250
--baseline_threshold 200
--workflow slc
--unw_method no
--nofocus
--zero

Did you figure out what this caution message meant?
CAUTION - Requesting very large search window pull in
Reference Window Size is 128 sample pixels
Number of Search Pixels is 40 sample pixels
The rule of thumb is that the search window pull in is at least 5 pixels and is less than the reference window size divided by 5.
Suggested Number of Search Pixels is 21 sample pixels

[Rick0219]

I've been met some similar situation when run_07_pairs_misreg.
Besides,there is a hint which is 'e vector 2 error' ,and I don't know what cause it.
Can anybody tell me whether this issue will impact the resulets.many thanks.

[ZYXSSS]

I met the same warning. Have you solved it?
I ignored the warning and continued to operate in StaMPS. It works normally. I don't know if this will affect me.