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Originally posted by GrimTroll
Originally posted by rocksarerocks
Here's some more "alien cities on mars". Notice the same tiling?
Hahahaha!
is this serious?
Originally posted by ArMaP
I don't think that those rectangles are the result of JPEG compression or anything like that, I think that they are the result of mapping a 2D photo over a computer generated 3D model of that area.
Mapping a 2D image over a 3D model creates a new kind of artifact, the stretching of the original image.
Imagining that we have a 3D representation of a tennis court. Mapping a photo taken from the vertical of that court would make a perfect representation of the real court because there isn't any real relief on a tennis court.
But if we had a photo good enough to show the net between the two halves of the court, what would that look like when mapped over its 3D model, with a sharp (probably vertical, but that would vary with the precision of the height measurements) increase in height?
The only visible part of the net, when viewed from the top, would be the top canvas strip, and that would be what the mapping of the image over the 3D model would use, making a vertical wall with the thin canvas strip stretched 2 times (one for each side) over the full height of the net.
What would that thin strip of canvas would look if it originally was only 3 or 4 pixels wide? Those pixels would be repeated (or probably interpolated, if there was any difference in colour between them) until they had the needed size.
That is what I think we are viewing in these photos, and if that is what is really happening, then all of those 3D models with the photos mapped over them will show signs of that stretching of the texture that is mapped over the 3D data, specially in places where there is a sharp difference in colour or in height.
Originally posted by jimbo999
reply to post by mikesingh
I think the first pics are probably pixellated artifacts, but without seeing the original - it's hard to say...
Jimbo
Originally posted by defuntion
Here is a comparison of the "original" photo (from link by internos) to what was posted...
Original (from link by internos- zoomed in close to level of posted version)
posted (appears modified - shadowing added to emulate depth/geometry)
Seems apparent to me (Pixelation - not a city)...
[edit on 8-11-2007 by defuntion]
Originally posted by Skyfloating
The first photo shows the same objects as the second one. The second one only emphasizes them.
Also: Mikesing posted a new set of photos from another place on one of the last two pages. What is your take on these?
Originally posted by IAttackPeople
I'm not really interested in playing "Mars Anomaly Whack-A-Mole" right now.