HiRise Imagery of Opportunity's trek, ...or, a blast from the past Options

[CosmicRocker]

Like a lot of people, the new HiRise imagery has had me scrambling to learn about JPEG2000 (jp2) files, and trying to find software and plugins for manipulating and editing them. A lot of that discussion has been taking place in the MRO 2005 topic. We now have two MRO passes providing amazing stereo over much of Opportunity's trek, and it sounds as if we will soon have some Spirit coverage. I can hardly wait for that.

Anyway, I'm starting this thread for anyone wanting to post new HiRise imagery of places Opportunity has explored in the past. I'll start it with an anaglyph.

Even though Meridiani is pretty flat, the MRO images were so fine that I really wanted to see how much detail I could get from them. Spectacular Victoria has already been nicely done, so I had to look elsewhere. I thought Beagle Crater and the transition to Victoria's annulus would be of interest to some people. I'll post this as a jpg that fits the forum size limit, but should we sometimes use the better jp2 format even though all users may not be prepared to view them?

[CosmicRocker]

could you kindly post an excel95-compatible file?

That's easy to do.  Vertical_Exaggeration_from_aerial_imagery_Excel95_version.xls ( 377K ) Number of downloads: 733
edit: Well, I guess it will not be that easy. Apparently the conversion to Excel95 screwed up some of the formatting. But you can correct that by changing the size of some of the cells and the dimensions of the image.

[Guest_jumpjack_*]

That's easy to do.  Vertical_Exaggeration_from_aerial_imagery_Excel95_version.xls ( 377K ) Number of downloads: 733
edit: Well, I guess it will not be that easy. Apparently the conversion to Excel95 screwed up some of the formatting. But you can correct that by changing the size of some of the cells and the dimensions of the image.

I created this page attempting to explain what vertical exaggeration depends on, but I have some problems:
- can't know if page actually works on your PC Sometimes on mine itself I get "invalid bytecode" or a not-working applet; anyway it's a 1.5 MB applet, please wait till download completes
- can't understand how V.E. formula can be obtained by my images/applets.
- looks like V.E. can be calculated from a single point of view (first applet), and it's quite confusing!

[tedstryk]

Put simply, if the stereo pair are taken from farther apart than human eyes, the 3-d effect is exaggerated. This is an issue with the Viking landers, and some of the foreground pairs are unviewable without processing. Fortunately, as far as calculating distnaces, one simply needs to know the distance between the two "eyes" and the angle of the line between them relative to the object in question.