Mars 3 (Various Topics Merged) |
Mars 3 (Various Topics Merged) |
Dec 29 2004, 10:36 PM
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
On my website sometime back, I added a page on the image fragment sent back by the Mars-3 Lander. I released serveral versions, including the best quality processing using othodox techniques I would use on other images plus colorization here:
http://pages.preferred.com/%7Etedstryk/fragmentc.jpg However, I released another image, which I called a "What if" image. This image can be seen here http://pages.preferred.com/%7Etedstryk/m3s5b.jpg It was produced via extreme processing of the original data to make a Mars-like scene, but I made it clear on my website it was only a speculative image. I strongly doubt if the raw data even shows Mars at all - it could be all noise. But since this mode of processing looked strangely Viking-like, I figured I would put it on the web. I was warned by several, who said that while fun, some kooks might take it seriously. My response was that I really don't care what kooks think. Then I noticed this web page: http://en.wikipedia.org/wiki/Mars_2 They used the overprocessed image. I feel like it is being presented as a true photograph. This is of concern. -------------------- |
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May 3 2006, 03:14 PM
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Member Group: Members Posts: 378 Joined: 21-April 05 From: Portugal Member No.: 347 |
Just some data, to make things clearer:
The Mars 3 camera scanned vertically, and each scan line has 500 pixels at maximum. A full 360º image had 6000 of this vertical lines at full sampling rate (1 line per second, 100 minutes for a full pan). It's reported that the Mars 3 image was being scaned at 4 lines per second. At this rate, a full 360º pan image would be a 500x1500 pixel image. Using the reported figure of 79 scanlines receaved from Mars 3 in +-20 seconds, the image corresponds to a field of view of 29º tall by 19º wide !!! This is the contrary to my previous post, and as such there's not really that much horizontal compression on the original data! So the correct proportions might be something like this: -------------------- _______________________
www.astrosurf.com/nunes |
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