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First Stereograms of Mars from Spirit
An anonymous reader writes "NASA has made the first stereo image pairs from Spirit available. I've made stereo anaglyphs and arranged the full-size images side-by-side for stereo viewing. These are from the low-res black and white hazard avoidance camera, but still very cool. Anxiously awaiting the first stereo pairs from the panoramic cameras!"
The parallel approach works for me and it's very cool. Much better than the ugly red/blue tint that you get with the anaglyphs. The cross-eyed approach just makes my eyes hurt.
You just have to let your eyes relax and just sort of nudge the two images into convergence.
The only problem is convincing your friends and family that it works and trying to instruct them how to do it.
To avoid seeing this message again, always shut down your computer properly by selecting Shut Down from the Start Menu.
I do have 3-D glasses. I don't understand why hes using JPEGs. They just introduce ghosting. Especially with the darker ones.
PNGs are good for this sort of thing.
I believe JPEG also has a RGB mode which will eliminate ghosting.
If you have an nvidia card with the latest 3D stereo drivers you can run 3D LCD shutter glasses (assuming your monitor can run ~120 hz or better) and view JPS images in "real" 3D. All JPS images are are 2 JPGs side by side which the viewer splits in half and displays one half at a time per screen refresh.
I've made a few of my own JPS images simply by taking two pictures with my digital camera a few centimeters offset and combining the two resulting JPGs into one JPS file.
Trolling is a art,
you dont yet, they will release detailed imagery and data updates packages as it they are constructed.
Check back on their website - they estimate about one update per week.
liqbase
The August 1998 issue of National Geographic came with two pairs, ironically enough to view stereo images as taken by NASA's last successful Mars lander, Pathfinder.
That's what I used to view the current images. So if you know someone with a National Geographic collection dating back that far you can borrow them, or if you're really keen you can head down to your local library, find the issue in question (hopefully with at least one pair of the glasses still inside), take it to an available library internet terminal, bring up the page in question, and view away.
Yaz.
Didn't Popular Science publish 3-D photos taken by the Viking mission to Marsin the 1970s?
Oh, by the way, here's the link I found that page at. Just leave the Karma on the dresser.
30cm with 1 degree toe-in. Ya, close stuff can hurt a bit to view.
Well I dug up my stereoscope viewer, dusted it off printed out 2 images, and pasted on a piece of cardboard, a little adjusting and VOILA ....REALLY COOL 3D, I found this link to build your own stereoscope, quite a bit different from mine but works on the same principals.
Well, as I posted before I cant see these things without a Stereoscope, if you dont have an antique stereoscope lying around like I do
I found this HERE and HERE is a bit better one (more like mine:)
The second one gives a couple of different types , the 3x9 is for using cards like I made for mine or viewing the old cards from before like 1900 ish.
I've created a quick Jiggy-Vision view of one of the sets.
Just FYI, and in a similar vein, when Pathfinder landed in 1999 I made a page with stereo pairs of the landing area (using images from Viking). Some of the hills, craters, etc., are pretty breathtaking when viewed in 3-D. Pathfinder landing site in 3-D Some interesting views taking from the Pathfinder lander, in stereo are here. --B
The cross-eyed pairs are where your left eye looks at the right picture and your other eye looks at the left picture. On the linked story page, these are the two left-most images.
I think the parallel stereograms (left image->left eye, right image->right eye) are easier and more comfortable to view because there is less perspective distortion as each eye can be directly in front of the part it needs to see. The two center images on the page make a parallel stereo pair. To view these, just look at some imaginary point several feet behind your display. When you do this, everything close to you will appear in double. Relax your eyes and adjust them so the two stereo images converge (you may have to tilt your head a little to get them perfectly horizontal). When the images overlap enough, your eyes will automatically "lock on" and a glorious patch of 3D will appear!
"Leave the strategizing to those of us with planet-sized brains." -Tycho
The first images are not very good ones to start with. I suggest browsing down to the first set of images that do not have parts of the rover in them (a set of small hills on the horizon). Also, try resizing the browser so that only the two images you are trying to combine are in view and place the browser on a plain background such as a reasonably uncluttered desktop. Try both the cross-eyed and parallel set of images if you do not know your method - you'll know when you have it right because there will be a slight topographic roll to the surface nearby.
Once you get those, try keeping your eyes situated in the same position and scrolling the other images up or down into your field of view without looking up or down. This will allow you to view the more difficult images with parts of the rover in them, which have sharp depth transitions between the solar panels, airbags, and ground.
Perhaps this was the page?
If thou see a fair woman pay court to her, for thus thou wilt obtain love
Quicktime VR available on SpaceRef here.
For those not lucky enough to own tons of these, or too cheap tp run to OfficeMax and grab 2 pieces of colored projector acetate, I present you with dirt cheap and free 3D glasses sources....
1
2
3
4 -- (RC 912 being my favorite ones...)
5 -- (This lovely book has a set of glasses, and a REAL reason to own a pair...)
Nice idea, Bruce Dern.
For those that don't know what he is talking about.
Great movie. Except the syrupy Joan Baez tunes.
I believe the original poster is mistaken, or I'm not seeing it. The little square images are parts of the mosaic which comprise the panorama. They are NOT taken with the stereo camera as far as I can tell.
A blog like any other.
A few of you have complained about the quality of the images. At the time the pictures were transmited, the rover only had its less powerfull (low bandwidth) antenna deployed.
u s.html
from:
http://spaceflightnow.com/mars/mera/stat
MONDAY, JANUARY 5, 2004
0610 GMT (1:10 a.m. EST)
"A few minutes before 12:30 a.m. EST today, the first direct-to-Earth communications session over the high-data-rate antenna began"
So, we should be seeing better images soon.
So why are all the pictures black and white?
Because they aren't using their color cam yet.
Beware: In C++, your friends can see your privates!
Mars' atmosphere is not dense enough to cause the light-scattering and light-filtering which makes Earth's sky appear blue. However, the Martian atmosphere is loaded with suspended dust particles. (Remember, this is the planet which is sometimes almost entirely shrouded by colossal, seasonal dust storms.)
The dust particles in Mars' thin atmosphere are larger than what we usually find in our own atmosphere. The large dust particles scatter longer wavelengths of light--i.e., the red spectrum. Thus, the pinkish tan color of Mars' atmosphere.
Here's some excellent information about the color of the sky on Mars.
See? A little education and science goes a long way to calm and debunk conspiracy paranoia. ;)
Check out what I'm working on! -- http://smaragd.DaveWard.net/
The NASA website calls them RAW images. The Rover may have sent the images in JPEG format. The term RAW most likely isn't refering to the RAW image that the camera captured, because then it would probably be much larger and in color.
Spirit is an entirely different story. The images we've seen so far are just from positioning/navigation cameras which only image in b&w. But I believe the first color images from the high-res, color cameras are due to reach us any time now. We should have high-res color pics sometime today.
Spirit has far better batteries, lots more energy, and a much longer mission schedule. Where Sojourner was expected to run for just 7 days, Spirit and Opportunity are expected to run for 90 days. The mission schedules this time are more deliberate and meticulous.
Today Spirit is going to begin to put down it's wheels and "stand up." But that whole process with take two days. And it won't actually roll off the pad and onto Martian soil until the 9th or 10th day after the landing.
So just have patience. We should see the first color pictures today, and Spirit will start puttering around the surface by the middle of next week.
Failure to provide instant gratification isn't a sign of general failure, nor an indicator of conspiracy. ;)
* Here's the Mars Pathfinder mission web site
* And here's an overview of the current Spirit & Opportunity missions.
Check out what I'm working on! -- http://smaragd.DaveWard.net/
- history on ALL past Mars attempts (those poor soviets...)
- *many* JPL and NASA pages, diagrams, videos, and photos
- info on sterescopic photos
- Sterescopic layout of Spirit's first round of photos
- Quicktime VR of the Spirit's panoramic view
- etc.
Here is the page:2004 Mars Exploration Rover Mission History and Highlights:
http://axonchisel.net/etc/space/mars-exp-rover-hi
That's because the high-gain antenna wasn't deployed until last night, and these pictures were sent before then.
... because they wore red uniforms.
Anaglyphs aren't generally done in color anyway -- it can work but only with certain "neutral" tones that are the same brightness through both red and green/cyan cellophane used in 3D glasses -- because the colors in the color photo can interfere with the anaglyphic process and skew the brain's perception of the 3D effect. Color pictures of Mars are a no-no - you DO NOT use images of red or green/blue objects or you'll ruin the effect entirely as one eye will see the red/blue objects much more brightly than the other. For this reason, Sports Illustrated Magazine's special issue for the Olympics a few years ago ran an apology for not having any anaglyphic shots of the Chinese athletes
Step one in the process I use to make anaglyphs: Strip out color (convert to greyscale). I work in an electron microscopy research lab and we process nearly everything into anaglyph format, so I do this all the time. You can fiddle with the gamma/brightness/contrast all you want, but color is a no-no. This means that when I make my own color anaglyphs (with better alignment than the ones linked in the article) -- looking forward to the high-res shots -- the color goes poof before ANYTHING else gets done to the images.
i am a soviet space shuttle
Stand-up and roll-off is expected to take as long as a week, actually. But we'll see a lot of data returned before the rover even moves.
i am a soviet space shuttle
Even the "color" cameras are black and white. They have nifty color wheels that rotate over them, and the unit takes pictures in succession to get the red, green, blue, IR, and several other shades i'm nor sure of.
Why do they do it this way? With the exception of the relatively new Foveon CCDs, "color" digital still and video cameras work in one of two ways-- 3 CCDs and a prism that splits the colors off to each CCD, or 1 CCD that has a grid of R, G, or B pixels arranged in blocks like this:
RG
GB
Note that this means your true full-color resolution is about 1/4 the advertised value (yes, your 4 megapixel digicam actually has 1MP red, 1MP blue, and 2MP green). Most digicams (except the Foveon CCDs and 3CCD video cameras) work this way, and use neighboring values to calculate the full RGB value at each pixel.
Using a single CCD and color filters gets you the accuracy of a 3CCD camera minus the weight and power consumption of two extra CCDs and a prism. It has the disadvantage of not being so good for fast action shots in color. Fortunately, those rocks are sitting pretty still. If something fast should happen, and the camera happens to catch it, we will still have a nice sharp B&W image of it.