Support for Rosetta data

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Abhinav Jindal

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Aug 29, 2022, 10:11:07 AMAug 29
to Ames Stereo Pipeline Support
Hi all,

I was wondering if anyone has attempted to use the stereo or shape-from-shading method on Rosetta data for 67P? I am trying to find out if it is possible to add georeferencing to the images to use them for DTM generation.

Thank you so much for your time,
Abhinav

Oleg Alexandrov

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Aug 29, 2022, 11:51:31 AMAug 29
to Abhinav Jindal, Ames Stereo Pipeline Support
Since Comet 67P/Churyumov-Gerasimenko is a highly irregular body, I am not sure how well DEMs will work. Those assume a round body.

ASP recently gained support for creating meshes of an arbitrary environment based on pictures. See https://stereopipeline.readthedocs.io/en/latest/tools/multi_stereo.html. The tools are part of the daily build, only for Linux, available from https://github.com/NeoGeographyToolkit/StereoPipeline/releases.

I must say that while the software is functional, and I did spend quite a time testing it, I only tested it for International Space Station images, not for a planetary body. You are welcome to give it a try, if you wish.

There are a lot of packages out there for doing photogrammetry of non-planetary bodies. See here: https://all3dp.com/1/best-photogrammetry-software/

I worked a bit with Colmap and I liked what it does, and I heard good things about AliceVision. These require a GPU. ASP's software does not, and it also gives more control over optimizing camera parameters, and in time will be integrated with the other ASP tools. 

In short, this is a bit outside our usual area of focus, but I plan to have ASP grow in that direction, time and funding permitting (and this year there will be some ground-level terrain work which will help with that).




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Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]

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Aug 29, 2022, 12:15:14 PMAug 29
to Oleg Alexandrov, Abhinav Jindal, Ames Stereo Pipeline Support
To add to the previous, it appears that ISIS supports some Rosetta instruments:


I did not try these. Ideally these create some .cub files. Then, likely ASP's usual bundle_adjust and parallel_stereo tools can be used, followed by point2mesh to create a mesh. For a somewhat flat area (there won't be many of those) maybe point2dem can be used with some radii (--semi-major-axis and  --semi-minor-axis) compatible with comet radius in meters. 

From: ames-stereo-pi...@googlegroups.com <ames-stereo-pi...@googlegroups.com> on behalf of Oleg Alexandrov <oleg.al...@gmail.com>
Sent: Monday, August 29, 2022 8:51 AM
To: Abhinav Jindal <abhinav...@gmail.com>
Cc: Ames Stereo Pipeline Support <ames-stereo-pi...@googlegroups.com>
Subject: [EXTERNAL] Re: Support for Rosetta data
 
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