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Live Dust Devil?
mars_armer
post Apr 21 2005, 11:37 PM
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I hope my sources don't get in trouble, but these are too good to keep to myself! These are enhanced animations from Sol 456 and 459. Amazing quality.





Disclaimer: These come from JPL, but NOT OFFICIALLY. They have been modified by me to reduce file size. I don't want to see them on Spacedaily, attributed to this forum sad.gif. Seriously. Enjoy the sneak preview, and wait for JPL's PR people to catch up.
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Bill Harris
post Apr 21 2005, 11:40 PM
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Whew. Reminds me of The Martian Chronicles....

--Bill


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dot.dk
post Apr 21 2005, 11:41 PM
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Arghhhh, mars_armer those just made my jaw hit the floor!!! Damn that's just CRAZY!! ohmy.gif ohmy.gif


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Guest_Sunspot_*
post Apr 21 2005, 11:44 PM
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Bloody Hell blink.gif blink.gif blink.gif blink.gif AMAZING !!!!!!!!!!!!!
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dot.dk
post Apr 21 2005, 11:49 PM
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No wonder Spirit got some dust lifted by something like that blink.gif

Seriously, that is just bloody awesome! Thankyou Spirit for living so long and giving us the opportunity (no pun) to see something like this! ohmy.gif


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dot.dk
post Apr 22 2005, 12:51 AM
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Did you push the PR guys wink.gif

http://marsrover.nasa.gov/gallery/press/sp.../20050421a.html


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mars_armer
post Apr 22 2005, 12:51 AM
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OK, I needn't have bothered. The PR folks were quick this time:

Gusev Dust Devil Movies
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Nirgal
post Apr 22 2005, 12:55 AM
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unbelievable, just unbelievable !!!!!!

smile.gif smile.gif smile.gif smile.gif
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Guest_Edward Schmitz_*
post Apr 22 2005, 02:27 AM
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Oh my God! I just saw them. What can you say! I never thought we would see anything like that. I could practically hear them as they went by. Intense.
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dilo
post Apr 22 2005, 05:58 AM
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They missed this (maybe will be posted soon):

How many dust devils here, guys? ohmy.gif smile.gif laugh.gif


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jaredGalen
post Apr 22 2005, 06:06 AM
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QUOTE (dilo @ Apr 22 2005, 06:58 AM)
They missed this (maybe will be posted soon):

How many dust devils here, guys? ohmy.gif  smile.gif  laugh.gif
*

Whoa, that's sweet as a nut dilo smile.gif
As for the NASA movies of the dust devils. NICE.
Clever way of getting the details of the devils from the images too.

jG


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dilo
post Apr 22 2005, 06:22 AM
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QUOTE (jaredGalen @ Apr 22 2005, 06:06 AM)
QUOTE (dilo @ Apr 22 2005, 06:58 AM)
They missed this (maybe will be posted soon):

How many dust devils here, guys? ohmy.gif  smile.gif  laugh.gif
*

Whoa, that's sweet as a nut dilo smile.gif
As for the NASA movies of the dust devils. NICE.
Clever way of getting the details of the devils from the images too.

jG
*



Yes, I didn't have time to apply this enhancing method to this sequence (though I already used something like this in the analysis of a devil track: http://www.unmannedspaceflight.com/index.p...indpost&p=8673).
Very interesting strategy also for JPL devils detection/transmission...! cool.gif


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dvandorn
post Apr 22 2005, 06:49 AM
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QUOTE (mars_armer @ Apr 21 2005, 06:37 PM)
I hope my sources don't get in trouble, but these are too good to keep to myself!  These are enhanced animations from Sol 456 and 459.  Amazing quality.





Disclaimer: These come from JPL, but NOT OFFICIALLY.  They have been modified by me to reduce file size.  I don't want to see them on Spacedaily, attributed to this forum  sad.gif.  Seriously.  Enjoy the sneak preview, and wait for JPL's PR people to catch up.
*


I am totally blown away. This is what I mean about seeing alien vistas.

BTW -- the Sol 456 event (I think it was, the middle one of the first three Doug posted) seemed to pass rather close to Spirit. Does anyone know whether or not the solar panels were affected, either way? I mean, the devils pick up dust, but they also look like they could drop dust in their wake, too. Considering how quickly the air thins out with height, I'd think that small devils like these might be dropping dust fairly close to their paths. I'm hoping we don't get showered with so much dust at any point that power levels drop as fast and far as they rose after the first major cleaning event...

-the other Doug


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wyogold
post Apr 25 2005, 12:13 AM
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Oh sure get a little busy at work and life for a couple days, come back and see i missed all the excitment. tongue.gif Anybody know how they do the "remove the background" thing at jpl? remove everything that is the same and leave everything that is different? Would be nice to do to the earlier dd's

http://marsrovers.jpl.nasa.gov/gallery/pre.../20050421a.html

scott
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Bill Harris
post Apr 25 2005, 12:31 AM
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QUOTE
how they do the "remove the background" thing


You have two images of the same scene taken without moving the camera and digitally subtract one from the other. In theory, they ought to cancel out and give a black image. In reality, there is a difference in the JPEG artifacting and the residual thermal noise of the camera so you won't get _zero_.

If one image contains something different, like a dust devil or a tribble, the different material will left and emphasized. In these images, they then added or overlayed the "enhanced" dust devil back into the scene for aesthetics.

A standard PShop function.

--Bill


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