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Welcome to the Ames Stereo Pipeline support forum!
New member posts are moderated, to reduce unsolicited email.
ASP readme:
https://github.com/NeoGeograph
yToolkit/StereoPipeline
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Matthew Hutton
,
Oleg Alexandrov
2
Feb 15
sat_sim for inverse linescan mapprojection
The sat_sim tool is not strictly speaking meant for unprojecting an image. That said, I think it
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sat_sim for inverse linescan mapprojection
The sat_sim tool is not strictly speaking meant for unprojecting an image. That said, I think it
Feb 15
Bhuwan Awasthi
,
Oleg Alexandrov
2
Feb 12
What is the exact format for .gcp files for RPC cameras?
The format for GCP is here: https://stereopipeline.readthedocs.io/en/latest/tools/bundle_adjust.html#
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What is the exact format for .gcp files for RPC cameras?
The format for GCP is here: https://stereopipeline.readthedocs.io/en/latest/tools/bundle_adjust.html#
Feb 12
lucia.and...@gmail.com
,
Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]
3
Feb 12
Repeating pixels when visualising using stereo_gui
Yes it is Pleiades PHR. Thank you! Lucia On Wednesday, February 4, 2026 at 6:13:14 PM UTC+1 oleg.al..
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Repeating pixels when visualising using stereo_gui
Yes it is Pleiades PHR. Thank you! Lucia On Wednesday, February 4, 2026 at 6:13:14 PM UTC+1 oleg.al..
Feb 12
Nadia Jabeen
,
Oleg Alexandrov
4
Feb 9
GCP file for KH-9 images
However, when I try to pass my self-created GCP file at the camera initialization stage to the
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GCP file for KH-9 images
However, when I try to pass my self-created GCP file at the camera initialization stage to the
Feb 9
Amaury Dehecq
,
Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]
2
Feb 5
Clean intermediate files and overwrite option
>1) I would like to be able to clean all intermediate files created by ASP (at least the heavy
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Clean intermediate files and overwrite option
>1) I would like to be able to clean all intermediate files created by ASP (at least the heavy
Feb 5
Riccardo Pedrelli
, …
Oleg Alexandrov
6
Feb 5
ICEYE SAR - ASP matching algorithms
Interest point matching failed for you. To my eye the images appear to have subtle but notable
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ICEYE SAR - ASP matching algorithms
Interest point matching failed for you. To my eye the images appear to have subtle but notable
Feb 5
Arnab Sarkar
, …
Oleg Alexandrov
6
Feb 3
How to use HDF files of ASTER in AMES pipeline for DEM generation
Thanks a lot for the support. The latest release of aster2asp is working fine with hdf4 format of
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How to use HDF files of ASTER in AMES pipeline for DEM generation
Thanks a lot for the support. The latest release of aster2asp is working fine with hdf4 format of
Feb 3
Jeremy Allen
, …
Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]
5
Jan 12
Converting linescan camera resolution
Jeremy, I am glad there is progress. I am not sure why one needs to set --threads 1 for mapprojecting
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Converting linescan camera resolution
Jeremy, I am glad there is progress. I am not sure why one needs to set --threads 1 for mapprojecting
Jan 12
Oleg Alexandrov
12/26/25
ASP 3.6.0 release
ASP 3.6.0 got released, for Linux, Mac Intel, and Mac Arm, as both tarballs and conda packages. More
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ASP 3.6.0 release
ASP 3.6.0 got released, for Linux, Mac Intel, and Mac Arm, as both tarballs and conda packages. More
12/26/25
Janko Trisic Ponce
,
Oleg Alexandrov
3
11/26/25
Persisting disparity after aligning with MOLA
Hi Oleg, Interesting, I will definitely try this out! When choosing the stereopairs, I did choose a
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Persisting disparity after aligning with MOLA
Hi Oleg, Interesting, I will definitely try this out! When choosing the stereopairs, I did choose a
11/26/25
Albert Kim
,
Oleg Alexandrov
5
11/25/25
Newbie seeking guidance floating albedo/estimating albedo using SfS
I made the initial-low-resolution albedo estimation in SfS respect the options --albedo-constraint-
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Newbie seeking guidance floating albedo/estimating albedo using SfS
I made the initial-low-resolution albedo estimation in SfS respect the options --albedo-constraint-
11/25/25
Vimal Venugopal
,
Oleg Alexandrov
2
11/20/25
TSAI file problem
It looks that you either need to put version 4, so: VERSION_4 PINHOLE fu = 2689.859992 fv =
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TSAI file problem
It looks that you either need to put version 4, so: VERSION_4 PINHOLE fu = 2689.859992 fv =
11/20/25
Ben Johnson
, …
Oleg Alexandrov
8
11/14/25
Questions about search range
Could you clarify, I don't understand how using the DEM I used for mapprojection aids in
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Questions about search range
Could you clarify, I don't understand how using the DEM I used for mapprojection aids in
11/14/25
Vico Alvarellos
,
Oleg Alexandrov
2
11/7/25
Issues generating DEM from Pleiades 1A stereo pairs using ASP
It is suggested to try to mapproject the input images, and overlay them in a GIS viewer on top of the
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Issues generating DEM from Pleiades 1A stereo pairs using ASP
It is suggested to try to mapproject the input images, and overlay them in a GIS viewer on top of the
11/7/25
Jean Baptiste Barré
,
Oleg Alexandrov
5
10/24/25
Bundle_adjust | min-distortion option
The key issue seems to be that a huge number of your interest points got removed as outliers. Maybe
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Bundle_adjust | min-distortion option
The key issue seems to be that a huge number of your interest points got removed as outliers. Maybe
10/24/25
Aaranay
, …
Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]
12
10/23/25
issues in running spiceinit on Chandrayaan2 OHRC image
I think the site http://imbrium.mit.edu/ has a lot of DEMs, likely at 20 m/pixel or so. Note that, at
unread,
issues in running spiceinit on Chandrayaan2 OHRC image
I think the site http://imbrium.mit.edu/ has a lot of DEMs, likely at 20 m/pixel or so. Note that, at
10/23/25
Janko Trisic Ponce
,
Oleg Alexandrov
2
10/16/25
stuck with either bundle_adjust or mapproject
I had to rotate the images because when I projected them in stereo_gui to get the GCPs they were
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stuck with either bundle_adjust or mapproject
I had to rotate the images because when I projected them in stereo_gui to get the GCPs they were
10/16/25
Daryl Ernesto Ayala Saavedra
,
Oleg Alexandrov
3
10/7/25
Persistent Banded Error After Jitter Solve (JS) on ASTER DEMs
This turned out to be a bug on our side. The internal lens distortion model was not good enough. I
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Persistent Banded Error After Jitter Solve (JS) on ASTER DEMs
This turned out to be a bug on our side. The internal lens distortion model was not good enough. I
10/7/25
lucia.and...@gmail.com
,
Oleg Alexandrov
3
10/7/25
Processing Pleiades Level 1A
To add to previous email, the stereo DEM with or without bundle-adjusted images can still have some
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Processing Pleiades Level 1A
To add to previous email, the stereo DEM with or without bundle-adjusted images can still have some
10/7/25
Marc Adams
, …
Joaquín M.C. Belart
3
10/1/25
PHR - jitter solve issues
Hello Marc and Oleg, Thanks a lot for this discussion. I'm also very interested in the
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PHR - jitter solve issues
Hello Marc and Oleg, Thanks a lot for this discussion. I'm also very interested in the
10/1/25
James Hollingsworth
,
Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]
3
9/18/25
oneMKL
amazing... many thanks Oleg :) On Wednesday, September 17, 2025 at 7:06:24 PM UTC+2 oleg.al...@nasa.
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oneMKL
amazing... many thanks Oleg :) On Wednesday, September 17, 2025 at 7:06:24 PM UTC+2 oleg.al...@nasa.
9/18/25
Aaranay
, …
Oleg Alexandrov
4
9/17/25
trying to run isisimport on chandrayaan2 data
This was held up as spam, apparently. I filed a bug report for this: https://github.com/DOI-USGS/
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trying to run isisimport on chandrayaan2 data
This was held up as spam, apparently. I filed a bug report for this: https://github.com/DOI-USGS/
9/17/25
Ryan Rock
, …
Oleg Alexandrov
11
9/8/25
Umbra SAR - bundle adjustment fails to find interest points
To add to the previous email, I figured out why after resampling the images with gdal_translate the
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Umbra SAR - bundle adjustment fails to find interest points
To add to the previous email, I figured out why after resampling the images with gdal_translate the
9/8/25
Arnab Sarkar
,
Oleg Alexandrov
2
9/7/25
Issue with pc_align in nuth method (ERROR: pick_random_subset: The specified output length is bigger than the input length.)
I put a fix for the particular error you are seeing with "output length". The fix is in
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Issue with pc_align in nuth method (ERROR: pick_random_subset: The specified output length is bigger than the input length.)
I put a fix for the particular error you are seeing with "output length". The fix is in
9/7/25
Geospatial
,
Oleg Alexandrov
7
9/6/25
aster2asp
Hi Oleg, Thanks. The issue is now resolved. I unzipped the files using commands within WSL, and this
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aster2asp
Hi Oleg, Thanks. The issue is now resolved. I unzipped the files using commands within WSL, and this
9/6/25
Daniel Evans
,
Oleg Alexandrov
4
9/2/25
camera_footprint kmls - longitudes outside [-180, 180]
This was a bug (that in principle can affect logic beyond this tool). The latest build has the fix.
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camera_footprint kmls - longitudes outside [-180, 180]
This was a bug (that in principle can affect logic beyond this tool). The latest build has the fix.
9/2/25
Aaranay
,
Oleg Alexandrov
2
8/25/25
SFS on chandrayaan 1 data
I am not sure ISIS supports Chandrayaan 1 image cameras. If you are able to run their tools on this
unread,
SFS on chandrayaan 1 data
I am not sure ISIS supports Chandrayaan 1 image cameras. If you are able to run their tools on this
8/25/25
Aaranay
,
Oleg Alexandrov
3
8/20/25
bundle adjustment issues
Thank you so much for the help. I'll try to attempt these fixes and see if that solves the
unread,
bundle adjustment issues
Thank you so much for the help. I'll try to attempt these fixes and see if that solves the
8/20/25
Kumar
,
Oleg Alexandrov
2
8/14/25
Continuing my ASP Journey: Seeking Guidance on Stereo Matching and Output Generation
For rover work, the closest we have is https://stereopipeline.readthedocs.io/en/latest/examples/mer.
unread,
Continuing my ASP Journey: Seeking Guidance on Stereo Matching and Output Generation
For rover work, the closest we have is https://stereopipeline.readthedocs.io/en/latest/examples/mer.
8/14/25
Kumar
,
Oleg Alexandrov
2
8/14/25
Newbie Seeking Guidance: Understanding and Implementing Ames Stereo Pipeline (ASP)
It is suggested to use another reference to understand how stereo works. The process is rather well
unread,
Newbie Seeking Guidance: Understanding and Implementing Ames Stereo Pipeline (ASP)
It is suggested to use another reference to understand how stereo works. The process is rather well
8/14/25