Reprocessing Historical Images, Looking for REALLY big challenges? |
Reprocessing Historical Images, Looking for REALLY big challenges? |
Nov 24 2005, 12:29 PM
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#316
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Curious, I would have expected Triton's disk to have shrunk to a much smaller orb by then than the above image shows, taking into account the substantial heliocentric velocity of Voyager 2 (in excess of 10 km/s). Neptune-relative speed was probably also of similar magnitude.
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Nov 24 2005, 12:35 PM
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#317
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
Tedstryk -- Ok... I didn't realize that. Triton's fairly close in so it's got a fairly short orbital period.
Ugordan -- Remember. Triton's a good sized moon... About half way in size between Rhea/Iapetus/titania/Oberon and Io/Luna/Europa. |
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Nov 24 2005, 02:59 PM
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#318
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Solar System Cartographer Group: Members Posts: 10151 Joined: 5-April 05 From: Canada Member No.: 227 |
This is part of the reprocessed Surveyor 3 panorama showing the footpad imprints uphill from the landing point.
According to the Apollo Lunar Surface Journal the astronauts never mentioned seeing the uphill imprints at all. Their attention was solely on the spacecraft and regolith immediately around it (trenches, prints from the last little bounce). My image labels the footpad imprints. Just 'inside' each one is a separate small print from the crushable blocks on the legs. A brighter, smoother area 'inside' the left-most print was described as due to vernier erosion in the Surveyor 3 report. Phil (PS if you think this image is junk you should have seen the originals) -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 24 2005, 09:01 PM
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#319
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
QUOTE (Phil Stooke @ Nov 24 2005, 03:59 PM) This is part of the reprocessed Surveyor 3 panorama showing the fotpad imprints uphill from the landing point. According to the Apollo Lunar Surface Journal the astronauts never mentioned seeing the uphill imprints at all. Their attention was solely on the spacecraft and regolith immediately around it (trenches, prints from the last little bounce). My image labels the footpad imprints. Just 'inside' each one is a separate small print from the crushable blocks on the legs. A brighter, smoother area 'inside' the left-most print was described as due to vernier erosion in the Surveyor 3 report. Phil (PS if you think this image is junk you should have seen the originals) Phil: Trumps, as usual! Funny the astronauts didn't see the imprints - from some angles compacted regolith is almost shiny, and they wandered about in the general area a fair old bit. Do you reckon any of the imprints are visible in the middle-distance EVA shots, particularly the ones looking uphill on the crater bowl? Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Nov 25 2005, 06:26 PM
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#320
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Newbie Group: Members Posts: 15 Joined: 25-November 05 Member No.: 574 |
OMG! All pics are incredible, great work all
By the way ... can anyone work in a N2 Geiser of Triton ¿? It should be great tedstryk Great page and blog -------------------- Ahora mismo lo único urgente es ir de frente - Enrique Bunbury
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Nov 25 2005, 06:51 PM
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#321
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Solar System Cartographer Group: Members Posts: 10151 Joined: 5-April 05 From: Canada Member No.: 227 |
Bob, I did some detective work. The only image which looks in the right direction is AS12-48-7101. On ALSJ it's too small to help. A really good scan of it might show the left-most (northern) footpad imprint. If anyone out there is in a position to oblige us...
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 25 2005, 10:56 PM
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#322
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Solar System Cartographer Group: Members Posts: 10151 Joined: 5-April 05 From: Canada Member No.: 227 |
This is something I've been doing on the side... just to show what can be done.
Phil Please note: the 'digital scale' note about 5 m/pixel is true for a full-size file. This is reduced to 10 m/pixel for posting. Geodetic control is from Peter Thomas's shape model. -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 25 2005, 11:23 PM
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#323
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (Phil Stooke @ Nov 25 2005, 10:56 PM) This is something I've been doing on the side... just to show what can be done. Phil Please note: the 'digital scale' note about 5 m/pixel is true for a full-size file. This is reduced to 10 m/pixel for posting. Geodetic control is from Peter Thomas's shape model. Great work Both the Surveyor 3 work and the Deimos map. -------------------- |
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Nov 26 2005, 12:23 AM
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#324
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Here is yet another improved version of the proteus image. It is reduced to about 1.8 km/pixel, a size that allows a bit more buildup to compensate for the lack of grey levels without giving up resoluton on higher contrast features that can be determined in the image. Color is based on the lone color mosaic of Proteus, and several papers that indicate an overal red color based on ground-based data.
I have also made it look dim - after all, Proteus is about as reflective as a lump of coal. Also, this helps in not straining the greyscale. -------------------- |
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Nov 29 2005, 09:27 PM
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#325
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Here is a supres image of Ariel that I have been working on. It still needs a lot of work, but progress is being made.
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Nov 30 2005, 01:48 PM
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#326
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Senior Member Group: Members Posts: 1084 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
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Nov 30 2005, 03:34 PM
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#327
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (vikingmars @ Nov 30 2005, 01:48 PM) Ted, WOW ! You deserve 5 "MER wheels" for your work ! The Universe would look so "shapeless" without you... Thanks! That image set has a lot more potential....I am not through. -------------------- |
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Guest_spaceffm_* |
Nov 30 2005, 06:34 PM
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#328
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Guests |
great work tedstryk!
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Dec 1 2005, 07:34 AM
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#329
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
Ted: I don't know the details of the Aerial image set, but I recall that some (in some areas all) of the high rezolution images were distinctly image-motion smeared. (The best Umbriel images seem to have some smear, too) Do you have any software that can use (FFT for example) advanced image processing to deconvolve the smear? Super-resolution processing has all sorts of benefits, but starting with damaged data never helps.
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Dec 1 2005, 10:34 AM
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#330
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (edstrick @ Dec 1 2005, 07:34 AM) Ted: I don't know the details of the Aerial image set, but I recall that some (in some areas all) of the high rezolution images were distinctly image-motion smeared. (The best Umbriel images seem to have some smear, too) Do you have any software that can use (FFT for example) advanced image processing to deconvolve the smear? Super-resolution processing has all sorts of benefits, but starting with damaged data never helps. I do have some software. One of the images I de-smeared a bit, the other one was too smeared to recover and so I didn't use it. And there were two images that were sharp. -------------------- |
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