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, 06:50 PM
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#3
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Senior Member Group: Members Posts: 2517 Joined: 13-September 05 Member No.: 497 |
The balancing operation ugordon describes is something we've been playing with for Mastcam. But note that since Mastcam's Bayer filters are transparent in the near-IR, when we use narrowband filters in those wavelengths the images are effectively grayscale and there is no spatial penalty (we just turn the interpolator off in that case). Of course you wouldn't want to have a filter wheel on your engineering cameras.
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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