Home, Sweet Home, Dream becomes Reality |
Home, Sweet Home, Dream becomes Reality |
Guest_RGClark_* |
Feb 9 2006, 02:46 PM
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#121
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QUOTE (ljk4-1 @ Feb 9 2006, 01:10 PM) But, Ted, just imagine if you had this kind of vision: http://www.lileks.com/bleats/archive/06/0206/gaah.html Perhaps some Martians did.... Could have warned us before hand .... - Bob |
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Feb 9 2006, 04:07 PM
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#122
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
I haven't seen yet any stiching of sol 747 MIs.
So here is what I get from http://qt.exploratorium.edu/mars/spirit/mi...ger/2006-02-08/: and |
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Feb 9 2006, 04:26 PM
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#123
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (Tesheiner @ Feb 9 2006, 04:07 PM) I haven't seen yet any stiching of sol 747 MIs. So here is what I get from http://qt.exploratorium.edu/mars/spirit/mi...ger/2006-02-08/: and That top image has some optical issues. I wonder if they are setting up a stereo sequence and you inadvertantly stitched some right and left frames together. -------------------- If Occam had heard my theory, things would be very different now.
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Feb 9 2006, 04:59 PM
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#124
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Junior Member Group: Members Posts: 67 Joined: 18-April 05 From: Austin, Texas Member No.: 249 |
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Feb 9 2006, 05:04 PM
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#125
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Member Group: Members Posts: 320 Joined: 19-June 04 Member No.: 85 |
QUOTE (edstrick @ Feb 9 2006, 10:26 AM) Pieces of a color pan arrived today..... Also that fragment of closeup pancam shot, contrast stretched and sharpened. Here's a quick observation: The dark basal unit at Home Plate may not be a true stratigraphic unit. If you follow the dark colouration from left to right in the above panorama you'll notice that it becomes less intense, more diffuse and eventually disappears. This may be an alteration product related to previous burial of the outcrop, as it seems the dark colour is most intense where the soil covering is greatest. Another point I wanted to make was that the dark coloured, rough textured zone associated with the contact between the Upper and Middle units at Burns Cliff was similarly overprinted on the stratigraphy in a somewhat discontinuous fashion. The Burns Cliff dark coloured zone was interpretted to represent the top of the former water table, where water was drawn up through capillary action, creating a secondary porosity and mineral recrystallization. But, again, as far as Home Plate goes, it's all guess work without any mineralogical data. Burns Cliff: http://www.lyle.org/~markoff/pds/257/1P153...P2270L257C1.JPG http://www.lyle.org/~markoff/pds/257/1P153...P2444L257C1.JPG http://www.lyle.org/~markoff/pds/257/1P154...P2275L257C1.JPG -------------------- |
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Feb 9 2006, 05:04 PM
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#126
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Member Group: Members Posts: 139 Joined: 14-October 05 From: Toronto, Canada Member No.: 529 |
Thank-you! Very nice! I appreciate the anaglyph.
-------------------- -- Robin
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Feb 9 2006, 05:07 PM
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#127
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Junior Member Group: Members Posts: 61 Joined: 5-June 05 From: 46.283N 11.433E :)) Member No.: 401 |
Here there is the 3rd dimension!
Did you see that for MI there are 4 images for each feature? One of them is the right channel for stereo view, but the other 3 are interesting. It seems that they took the 3 images at different distances. I have a supposition about. I know that there is an algorithm that allows to reconstruct the 3rd dimension from computing images of the same thing from different distances. Someone knows something more about this algorithm? I'm really interested in 3D from 2D algorithms! I used "shape from shading" with (partial) success on oppy outcrops. My post |
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Feb 9 2006, 05:08 PM
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#128
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
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Feb 9 2006, 06:10 PM
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#129
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Member Group: Members Posts: 656 Joined: 20-April 05 From: League City, Texas Member No.: 285 |
QUOTE (malgar @ Feb 9 2006, 12:07 PM) Here there is the 3rd dimension! Did you see that for MI there are 4 images for each feature? One of them is the right channel for stereo view, but the other 3 are interesting. It seems that they took the 3 images at different distances. I have a supposition about. I know that there is an algorithm that allows to reconstruct the 3rd dimension from computing images of the same thing from different distances. Someone knows something more about this algorithm? I'm really interested in 3D from 2D algorithms! I used "shape from shading" with (partial) success on oppy outcrops. My post You may be referring to the ImageJ application's Extended Depth of Field extension, available here: http://bigwww.epfl.ch/demo/edf/index.html Additional: I stumbled upon a product called Helicon Focus which does a really good job of combining a stack of variably focused images into a single image in good focus: http://www.heliconfocus.com/pages/index.php?focus_overview Unfortunately it doesn't seem to provide a 3D reconstruction. I encountered one or two other applications which claimed to provide a 3D reconstruction from focus information, but they were all medical related and didn't provide downloadable demos (and can also be expected to be ludicrously overpriced). I tried using it on some MI's about a year ago, without success. I think the distance between images (depth) is too great for it. |
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Feb 9 2006, 06:55 PM
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#130
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Senior Member Group: Members Posts: 1229 Joined: 24-December 05 From: The blue one in between the yellow and red ones. Member No.: 618 |
QUOTE (Phillip @ Feb 9 2006, 06:59 AM) The highlighted (boxed) area is is the only example of non-planar layering I see in the HP photos so far. Does anyone see any other examples? Are my eyes/shadows playing tricks on me and these layers are in fact planar? Phillip Hmmm...I'd like to see Spirit run over that a few times to see if it's in one or two pieces. -------------------- My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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Feb 9 2006, 07:02 PM
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#131
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Chief Assistant Group: Admin Posts: 1409 Joined: 5-January 05 From: Ierapetra, Greece Member No.: 136 |
Looking in stereo I would say they're planar, the exposed part in the boxed area is bulged -eroded on all sides.
Nico -------------------- photographer, space imagery enthusiast, proud father and partner, and geek.
http://500px.com/sacred-photons & |
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Feb 9 2006, 07:09 PM
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#132
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
QUOTE (Shaka @ Feb 9 2006, 01:55 PM) We've just begun stepping out into the Universe and already we're planning on vandalizing it. -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Guest_RGClark_* |
Feb 9 2006, 08:04 PM
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#133
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QUOTE (algorimancer @ Feb 9 2006, 06:10 PM) You may be referring to the ImageJ application's Extended Depth of Field extension, available here: http://bigwww.epfl.ch/demo/edf/index.html Additional: I stumbled upon a product called Helicon Focus which does a really good job of combining a stack of variably focused images into a single image in good focus: http://www.heliconfocus.com/pages/index.php?focus_overview Unfortunately it doesn't seem to provide a 3D reconstruction. I encountered one or two other applications which claimed to provide a 3D reconstruction from focus information, but they were all medical related and didn't provide downloadable demos (and can also be expected to be ludicrously overpriced). I tried using it on some MI's about a year ago, without success. I think the distance between images (depth) is too great for it. Cool links. This clearly would have application with clearing up the focus in some of the rover MI images. - Bob |
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Feb 9 2006, 08:44 PM
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#134
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Senior Member Group: Members Posts: 1229 Joined: 24-December 05 From: The blue one in between the yellow and red ones. Member No.: 618 |
QUOTE (Shaka @ Feb 9 2006, 08:55 AM) Whoops! Hey, That's what I call service with a smile: http://qt.exploratorium.edu/mars/spirit/fo...55P1214R0M1.JPG Thanks, JPL. Now if you'll just back off so we can look at the rock. Guys...? -------------------- My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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Feb 9 2006, 09:06 PM
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#135
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
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