MSL self portrait, Sols 84 - 85 |
MSL self portrait, Sols 84 - 85 |
Oct 31 2012, 05:26 PM
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#1
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
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Nov 2 2012, 11:33 AM
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#2
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Senior Member Group: Members Posts: 1619 Joined: 12-February 06 From: Bergerac - FR Member No.: 678 |
Yes, absolutely right with what said above. This is a great work. And there is something we can't see immediately, but what panoramic stitchers like us know, is that there is absoluteluy no paralax between images. This lead me to this conclusion : the robotic arm had to do complex gestures in order to avoid shiftings, rotating itself around the optical center of the MAHLI lens. With that in mind, we can clearly understood the amount of work to have such a perfect self portrait. So, thanks for this !!!
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Nov 2 2012, 03:51 PM
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#3
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
And there is something we can't see immediately, but what panoramic stitchers like us know, is that there is absoluteluy no paralax between images. This lead me to this conclusion : the robotic arm had to do complex gestures in order to avoid shiftings, rotating itself around the optical center of the MAHLI lens. I'm not a stitcher, but I did notice this. There's quite a bit of overlap between frames, so I checked to see if I could make a stereo view of the RSM using neighbouring frames. If mahli had rotated about some axis on the arm, you'd expect transverse displacement (leading to parallax) as the pointing changed, which would let you make an anaglyph of the overlapping regions.But when I tried it, I saw that there was very little transverse movement (and what was there was totally dominated by lens distortions). So, like Ant says, it looks like effort was made to rotate about the optical centre. That gives me hope that the 84/85 stereo view will be very clean (at least for the appropriate projection). Edit: the full resolution almost-simultaneous ML view of the turret is down! |
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Lo-Fi Version | Time is now: 25th June 2024 - 01:43 PM |
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