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Reprocessing Historical Images, Looking for REALLY big challenges?
ugordan
post Nov 24 2005, 12:29 PM
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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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edstrick
post Nov 24 2005, 12:35 PM
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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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Phil Stooke
post Nov 24 2005, 02:59 PM
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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

Attached Image


(PS if you think this image is junk you should have seen the originals)


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Bob Shaw
post Nov 24 2005, 09:01 PM
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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)
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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


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Enrique Bunbury
post Nov 25 2005, 06:26 PM
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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


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Phil Stooke
post Nov 25 2005, 06:51 PM
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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


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Phil Stooke
post Nov 25 2005, 10:56 PM
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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.

Attached Image


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tedstryk
post Nov 25 2005, 11:23 PM
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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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tedstryk
post Nov 26 2005, 12:23 AM
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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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tedstryk
post Nov 29 2005, 09:27 PM
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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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vikingmars
post Nov 30 2005, 01:48 PM
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Ted,
WOW ! You deserve 5 "MER wheels" for your work !
wheel.gif wheel.gif wheel.gif wheel.gif wheel.gif
The Universe would look so "shapeless" without you...

QUOTE (tedstryk @ Nov 29 2005, 10:27 PM)
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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tedstryk
post Nov 30 2005, 03:34 PM
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QUOTE (vikingmars @ Nov 30 2005, 01:48 PM)
Ted,
WOW ! You deserve 5 "MER wheels" for your work !
wheel.gif  wheel.gif  wheel.gif  wheel.gif  wheel.gif
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_*
post Nov 30 2005, 06:34 PM
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Guests






great work tedstryk!
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edstrick
post Dec 1 2005, 07:34 AM
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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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tedstryk
post Dec 1 2005, 10:34 AM
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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.
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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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