Reprocessing Historical Images, Looking for REALLY big challenges? |
Reprocessing Historical Images, Looking for REALLY big challenges? |
Apr 21 2005, 11:26 PM
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Member Group: Members Posts: 123 Joined: 21-February 05 Member No.: 175 |
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May 30 2005, 09:50 PM
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Member Group: Members Posts: 378 Joined: 21-April 05 From: Portugal Member No.: 347 |
Interesting images ! Very nice!
But those hills... are there really hills in the original images? Perhaps just some rock layers on the horizon. Without geometrically corrected images it's difficult to judge. I tried everything in my power to correct the Venera images with no results... I even projectes the images into the inside of a sphere in Celestia and used the mouse to look around. It corrected some distortions, but not all! -------------------- _______________________
www.astrosurf.com/nunes |
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May 31 2005, 02:07 AM
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (4th rock from the sun @ May 30 2005, 09:50 PM) Interesting images ! Very nice! But those hills... are there really hills in the original images? Perhaps just some rock layers on the horizon. Without geometrically corrected images it's difficult to judge. I tried everything in my power to correct the Venera images with no results... I even projectes the images into the inside of a sphere in Celestia and used the mouse to look around. It corrected some distortions, but not all! Same here. I cannot get the geometry quite right. I try to imitate what looks right, but I have no hard numbers to go on to know exactly how the images were scanned. I do have some quasi-superres images by Don Mitchell that show that the ridges in the distance are definitely real - and they were produced on much better original data than the NSSDC version that he produced from the original transmissions. His work with the Venera pans is by far the best. -------------------- |
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