Multiply overlapping Mars imagery, Looking for 5 or more images of same spot |
Multiply overlapping Mars imagery, Looking for 5 or more images of same spot |
Sep 24 2010, 09:34 PM
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#1
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![]() Bloggette par Excellence ![]() ![]() ![]() ![]() Group: Admin Posts: 3982 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
A reader (Bill Green, a retired JPL guy who helped develop MIPL) alerted me to a recent article in IEEE Computer, "Aerial Computer Vision for a 3D Virtual Habitat" (subscription only, I'm afraid) that describes a method that they refer to as the "high overlap paradigm" for developing extremely high-resolution digital elevation models by using many aerial photos from many look angles. I contacted the paper's first author, Franz Leberl, to see if he was interested in attempting to apply his method to images from Mars, and the answer was: Yes, he's very interested. So my question is, where on Mars do we have sets of highly overlapping images? Here's what Leberl said he needed:
QUOTE For a fully automated process that associates a surface elevation with each pixel, we need 5 or so images of each terrain point. If it is more, that is even better. If you have a focal length and location of the principal point, that would be helpful also. We do not need any data about the camera positions; but if you had such data, we would want to compare our results to those you have. And if you also had previous results in the form of a digital surface model created by traditional two-image stereo, we could use this as well for an analysis and comparison. Can the hivemind of UMSF help me connect Leberl with the data he would need to make some seriously detailed DTMs?
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Sep 27 2010, 12:48 PM
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#2
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![]() Member ![]() ![]() ![]() Group: Members Posts: 581 Joined: 20-April 05 From: League City, Texas Member No.: 285 |
I would think that rover-level imagery would be ideal, especially for places like the Columbia Hills and Victoria crater -- lots of images from lots of perspectives.
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Sep 27 2010, 02:14 PM
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#3
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1972 Joined: 28-December 04 Member No.: 132 |
I would think that rover-level imagery would be ideal... The the study linked in the opening post is about getting the information from aerial views. So the question here is how to use this method with orbital images of Mars rather than how to get the best elevation data for places the rovers have visited. |
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elakdawalla Multiply overlapping Mars imagery Sep 24 2010, 09:34 PM
nprev I bet that the Spirit & Oppy landing sites pro... Sep 24 2010, 09:49 PM
djellison That was going to be my response - Spirit's la... Sep 24 2010, 10:11 PM
Bjorn Jonsson One possible problem though:
QUOTE developing ext... Sep 25 2010, 12:12 AM
PDP8E one of the best off-nadir shots from MRO has to He... Sep 25 2010, 10:26 PM
nprev Hmm. MRO got just the one image of Phoenix' de... Sep 26 2010, 03:03 AM
djellison Because the landing site HiRISE images are targete... Sep 26 2010, 07:49 AM
tanjent Without having access to the article, couldn't... Sep 27 2010, 03:11 PM
centsworth_II QUOTE (tanjent @ Sep 27 2010, 10:11 AM) .... Sep 27 2010, 03:19 PM
djellison It would make far more sense to use the orbital im... Sep 27 2010, 06:33 PM
Pertinax A bit more cost efficient as well!
-- Pert... Sep 27 2010, 11:41 PM
tharrison CTX images the Spirit and Opportunity landing site... Sep 28 2010, 04:02 PM
Zack Moratto I wish this paper had more content. Yet that doesn... Oct 5 2010, 11:00 PM![]() ![]() |
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