SigurRosFan
Oct 4 2006, 11:03 AM
This first try shows a small Opportunity approaching Cape Verde on Sol 957.
I used James' great colorization pan 'Cape Verde from Duck Bay' (
Homepage). Thanks James!
Now five sols later ...
Aberdeenastro
Oct 4 2006, 11:53 AM
The scale of this place continues to confuse me. I thought the cliffs were much bigger than the scale you are implying, but I've done no analysis to back this up!
Aberdeenastro
RobertEB
Oct 4 2006, 12:17 PM
I know what you mean. Back in Eagle crater, I first thought Opportunity was looking at a huge cliff off in the distance.
I believe it's been agreed that the famous "Mystery Men" provide a good sense of scale here...
Click to view attachment(edit of larger image which can be found... oh...
somewhere... don't have time to look! Sorry!)
Ant103
Oct 4 2006, 01:53 PM
Hi,
Wow, Mystery Man is back. Hurray!
So, here is the Sol 956 navcam panorama, build with Autostitch and MMB. This software is very good to make antivigneting and gain compensation (thanks to Mhoward
).
MahFL
Oct 4 2006, 01:58 PM
I too thought it was a huge cliff, and was a bit dissapointed when it turned out to be a few cm tall. Endurance made up for that though, and now we have Victoria and maybe later some part of Big Crater and its rim.
jvandriel
Oct 4 2006, 02:01 PM
Another view of Victoria.
Taken with the L0 navcam on Sol 957.
jvandriel
jvandriel
Oct 4 2006, 02:16 PM
Here is the view in the drive direction.
Taken with the L7 pancam on Sol 957.
jvandriel
Aberdeenastro
Oct 4 2006, 02:18 PM
Thanks Ant103 and jvandriel for those amazing panoramas. I can't stop looking at them. However, the more I look at them the more I think that the tip of Cape Verde is a treacherous place to be. The Beacon area looks much safer.
Aberdeenastro
(formerly known as Castor)
Nirgal
Oct 4 2006, 02:28 PM
QUOTE (Ant103 @ Oct 4 2006, 03:53 PM)
Hi,
Wow, Mystery Man is back. Hurray!
So, here is the Sol 956 navcam panorama, build with Autostitch and MMB. This software is very good to make antivigneting and gain compensation (thanks to Mhoward
).
Wow, impressive ponorama !
I too have been trying to use Micheal's MMB viewer lately but didn't succeed in exporting the
luminance corrected images for later use in panorama software (but I must admit that I have not spent
much time reading the docs yet)
How did you do the trick ?
Also, how did you manage to get the level horizon in the panorama ? (autostich usually produces
uneven horizon at the stitching seams and it's very cumbersome to find the right "greek" orientation parameters psi,phi....)
Isn't there also a special feature in MMB that takes JPL metadata in order to correct the exact rover orientation ... would it be possible to use this for the Autostich orientation parameters ?
Tesheiner
Oct 4 2006, 02:35 PM
QUOTE (jvandriel @ Oct 4 2006, 04:16 PM)
Here is the view in the drive direction.
Given the concerns already raised here and on another thread I hope they don't really drive too much on that direction.
MahFL
Oct 4 2006, 02:52 PM
The Rover drivers know what they are doing. Remember even the tilt paramter of say 30 degrees will stop the rover dead in its tracks. Cabo Verde is not a 90 degree drop off by any means, infact I don't think any of the cliffs are, they all seem to have a slope then a drop. They also have several other s/w parameters to stop a rover driving over a cliff.
jvandriel
Oct 4 2006, 02:55 PM
Tesheiner.
Nirgal,
for a good as possible match at the seams in the Sol 957 navcam pano I used the
following parameters:
Matching Options:
Sift image:
Min dim ( pixels ): 4400
Ransac Parameters:
Alpha: 3
Beta: 0.1
Max Iterations: 4500
With the Manual Orientation parameters Phi and Psi you can level and straighten the Horizon.
This is most of the time only a problem with the navcam images.
The pancam panoramas are much better.
jvandriel
Nirgal
Oct 4 2006, 02:59 PM
QUOTE (jvandriel @ Oct 4 2006, 04:55 PM)
Un-needed quote removed - please remember not to quote when replying - it'd save us admins a lot of time better spend on playing with the imagery
jvandriel, Thanks a lot for giving the detail info about your settings ... greatly appreciated
-> just moved the thread over to the image-tech-forum
Ant103
Oct 4 2006, 03:14 PM
For Nirgal : I discover the method few weeks ago. To have the images corrected for the pan, go into "File > Advandced > Export Pan Images". After, choose the directory and "export".
For the horizon, when it is visible (so, at Meridiani, you often see the horizon...), I take the first image of the pano (the very first at the left) and I calculate the inclination of it. And in Autostitch, I put the inclination number in the "psi" parameter. After, you have to adjust the other parameter if it's necessary (phi for curve the whole pano, theta for bend the pano around the first pic).
This the way I proceed but, some times, by seeing the individual pictures in the finished pano, the horizon is not plane.
mhoward
Oct 4 2006, 04:14 PM
QUOTE (Ant103 @ Oct 4 2006, 03:14 PM)
... "File > Advandced > Export Pan Images".
... For the horizon, when it is visible (so, at Meridiani, you often see the horizon...), I take the first image of the pano (the very first at the left) and I calculate the inclination of it. And in Autostitch, I put the inclination number in the "psi" parameter. After, you have to adjust the other parameter if it's necessary (phi for curve the whole pano, theta for bend the pano around the first pic). ...
FYI, an alternative to using Autostitch at all would be to use
Hugin, a free open-source alternative to PTGui, with the mmb.pts project file that gets generated by that option now (in 1.5.1). James pointed this out to me. Of course you could also use
PTGui, which is great, but it's not free.
dilo
Oct 4 2006, 05:14 PM
QUOTE (Ant103 @ Oct 4 2006, 01:53 PM)
So, here is the Sol 956 navcam panorama, build with Autostitch and MMB. This software is very good to make antivigneting and gain compensation (thanks to Mhoward
).
Nice stitch, Ant... I made this processed and coulored version (is reduced and slightly cropped from original).
Regarding Autostitch, remember to share additional information in this thread where Jvandriel already supplied very useful tips;
http://www.unmannedspaceflight.com/index.p...c=1071&st=0Nico
mhoward
Oct 4 2006, 08:10 PM
QUOTE
The navcams and pancams make it clear we are headed to the tip of Verde.
The only question that remains is how close dare they get to the "edge"? ph34r.gif
PS - I guess this discussion should go to the Verde thread...
My guess is we are going right where the Pancams are...
It should be one fantastic view.
New pancams of the dunefield are L2,7 so some pseudo-color is doable..I've been playing with them a bit but I'm too tired to finish it so I'm off to bed.
Somebody up to some work on those? Marco? Horton? anyone?
Nico
hortonheardawho
Oct 4 2006, 10:17 PM
L27 1x4 -- 9 meters from edge!
fredk
Oct 5 2006, 12:39 AM
Thanks for that, Horton. The L7 channel was heavily compressed, so colours are a little blocky. Can't wait for the big pan!
SigurRosFan
Oct 5 2006, 08:51 AM
A Oppy collection is opened.
Sol 958 ...
Aberdeenastro
Oct 5 2006, 09:33 AM
One of the reasons cited for going to Cape Verde was to do some close-up work on some rocks. The latest navcams and pancams do not seem to show any accessible rock in the vicinity. I wonder if they will now head up towards the Beacon where there does appear to be outcrop and might give a better view?
Aberdeenastro
(formerly known as Castor)
dot.dk
Oct 5 2006, 09:51 AM
What's going on here?
CODE
959 p2589.16 0 0 0 0 0 0 pancam_left_rear_wheel_pos_L257
959 p2590.16 0 0 0 0 0 0 pancam_right_rear_wheel_pos_L257
MahFL
Oct 5 2006, 10:20 AM
Maybe they are taking a picture of the tracks now, for comparision after solar conjunction, if Oppy is indeed parked at THE conjuction position for the next 3 or 4 weeks.
babboxy
Oct 5 2006, 11:33 AM
opportunity? what is opportunity?! ...this should be called cliffhanger!
Tesheiner
Oct 5 2006, 01:12 PM
QUOTE (hortonheardawho @ Oct 5 2006, 12:17 AM)
L27 1x4 -- 9 meters from edge!
I wonder if are they really planning to go that far.
Here is an exercise showing the current horizontal fov (i.e. far rim not blocked by either the beacon or Cabo Frio) and an estimation of the fov if the rover drives forward another 5m. The view won't change too much, perhaps another cape will be visible to the north but nothing more.
Off course, the big change will be in the vertical fov because the center dune field should be completely visible.
Click to view attachment
Gray
Oct 5 2006, 01:24 PM
From a geological perspective, it would be very helpful to see the cliff on the south side of the Beacon. Then we'd be able to compare it to the exposures that were imaged on the south side of Cape Verde and the north side of Cabo Frio. That little bit of extra distance might be all that we need.
Ant103
Oct 5 2006, 04:28 PM
Here is the Sol 958 Navcam pan, with the same method of my last (MMB & Autostitch) :
I can't believe that the team want to stay here for the solar conjonction, the view should be great from Beacon
...
diane
Oct 5 2006, 04:49 PM
Beacon sounds good too; I'd really like to get some distance so that the petrified liz@rd doesn't crawl up and start sunning himself on Oppy's solar panels.
Seriously, before moving on, I hope they take the extra few meters drive to the edge and get a full pan of the Beacon's southern face. If we don't get it here, it will be a long time before we get another, urm, "opportunity."
Oersted
Oct 5 2006, 04:53 PM
Now that's a conundrum: do we want to see the beacon or do we want to sit on the beacon? - I have the feeling we will have a lot of questions like that in the coming months. Which is not a bad situation to be in...
Tman
Oct 5 2006, 05:06 PM
Indeed It looks she stands rather close to the north side of Cabo Verde's egde, tztz
One Rover width (wheel to wheel) between maybe, but probably more.
No slip so far
http://nasa.exploratorium.edu/mars/opportu...POP1311R0M1.JPG
Floyd
Oct 5 2006, 05:15 PM
And rock for IDD
Indian3000
Oct 5 2006, 06:55 PM
Indian3000
Oct 5 2006, 06:58 PM
mhoward
Oct 5 2006, 06:59 PM
Sol 959 100-degree perspective view:
ustrax
Oct 5 2006, 07:11 PM
QUOTE (Stu @ Oct 5 2006, 07:42 PM)
Where IS everyone??? I thought there'd be images and mosaics flying in all directions tonight!
That's the BEACON over there!!! We've talked about it for all these months, and we're
here!!!
Maybe everyone's waiting until they release that pic of Oppy standing on the edge of VC as taken by MRO, at tomorrow's Media Briefing... (if that's what it is...? Wouldn't it be brilliant if it was an image sequence, with three frames, #1 showing one of the MER's being approached by a dust devil, looking all dirty and grungy, then #2 the rover enveloped by the dust, and #3 reappearing all shiny and new again!
)
I'm here Stu! A bit drunk (national holiday...) but here...
This, for me, is the boundary...Oppy is, from now on, the Earth's embassy to something unbleviable!...
I'm drooling...drooling...
And if my desire was in a Cape Verde egress, now...I don't how that cape will be named but that's the way! Totally the way...Sorry but this are the emotions writing...
I WANT to go down there!!!
Shaka
Oct 5 2006, 07:14 PM
Am I imagining things or is the Beacon 'Cabo' the only one that shows uplift rather than sag? Does this suggest something fascinating about the underlying structure, or is it just that a fragment of an upper 'evaporite' unit survives atop Beacon, and is lost everywhere else?
remcook
Oct 5 2006, 07:21 PM
stunning...quite a parking spot!
Tman
Oct 5 2006, 07:25 PM
QUOTE (ustrax @ Oct 5 2006, 09:11 PM)
I'm here Stu! A bit drunk (national holiday...) but here...
And if my desire was in a Cape Verde egress, now...I don't how that cape will be named but that's the way!
Only a bit drunk, Eh?
Did I just hear you say "Cape"?
Happy national holiday, Ustrax!
ustrax
Oct 5 2006, 07:32 PM
A bit bit...
That would be my
Valley Without Peril in between...
The perfect egress!
It's the Republic's Triomph...Not my kind of holiday...But...Hey...It's a free day anyway...
fredk
Oct 5 2006, 07:33 PM
Approximate location after tosols drive:
Click to view attachmentWe're still 8 metres or so from the visible tip in that image, but we're much closer, only 3 metres or so, from the closest part of the "edge", which is more directly to our east (ie towards the "back" of Verde in that image). (This is according to AlgorimancerPG on the navcams).
Oersted
Oct 5 2006, 07:47 PM
I'm surprised that such a big part of the crater floor is smooth surface. I had the impression much more of it was covered by dunes, but it looks to me as if there's a hard nicely-packed smooth surface for driving around on the "inside" track, going from cape to cape... Well, we'll see.
Oh yes, BTW. I am happy that the dilemma was solved, and that we chose to look AT the beacon instead of sitting on it. Holy smoking rock wall!
Awesome view indeed! The entire dunefield visible...what a sight.
And again perfect pans from Indian, a striking perspective projection by Michael...
Life is good
And now I'm off to bed since I can't stand the wait for that press release
Nico
lyford
Oct 5 2006, 08:29 PM
QUOTE (Stu @ Oct 5 2006, 10:49 AM)
Um, don't you mean CLINK?
And I am most certainly here... though my excitement is tempered that I will soon have 2 weeks "cold turkey" to deal with....
QUOTE (lyford @ Oct 5 2006, 08:29 PM)
Um, don't you mean CLINK? :
No, I meant "chink"... only got little bitty coins right now, nothing heavy enough to make a "clink"
ngunn
Oct 5 2006, 09:07 PM
QUOTE (RedSky @ Oct 5 2006, 07:54 PM)
Hey, how about a "mystery man" standing down on the floor among the dunes. The floor seems so close from here, but I'm sure it quite a ways...
I think once again there's a mini-horizon at the entrance of the bay with an unseen steeper slope beyond that leading down to the dunefield.
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