Mars Science Lab Cameras |
Mars Science Lab Cameras |
Guest_Sunspot_* |
May 20 2004, 01:23 PM
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#1
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Guests |
Has anyone any idea what kind of imaging system is being proposed for the MSL? Would it be the same or simiilar to the MER's, or as improved as the MER pancams are to those that were used on Pathfinder?
With a nuclear power source for the rover, and hopefully the mars telecoms orbiter in place the data rate and data volume could be phenomenal |
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Nov 19 2009, 05:40 PM
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#2
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Martian Photographer Group: Members Posts: 352 Joined: 3-March 05 Member No.: 183 |
The "penalty" is technical rather than scientific. Single shot color uses patterned filters on the sensor. The spatial content of the scene is undersampled, and later interpolated. Stereo processing for range maps and navigation would then look at the results of the interpolater. It is not obvious how much degradation there would be, especially if the green channel or maybe the sum of all 3 channels got used in the stereo/navigation processing. But it might be a tough sell without data. (As I recall, using a bayer pattern detector under mastcam's science filters was a tough sell to some of the camera team, and that's a less touchy operation.) For the record, I think it is do-able; but it's not the same to think it can be done reliably versus to show you'll never put the rover in jeopardy due to such a decision.
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Nov 19 2009, 05:45 PM
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#3
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
It is not obvious how much degradation there would be, especially if the green channel or maybe the sum of all 3 channels got used in the stereo/navigation processing. On Mars where there's not much color variation in the first place, wouldn't you effectively be able to recover full resolution by simply multiplying different bayer "channels" by a corresponding factor to make a sort of white-balanced, "grayscale" image? Effectively getting back a panchromatic image as you'd normally have. -------------------- |
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