My Assistant
Spirit's UnderBelly, processing the MI images |
Jun 25 2009, 03:01 AM
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Member ![]() ![]() ![]() Group: Members Posts: 809 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
Here is a work in progress.
I was working on a another thread (processing the envelope challenge for PFK) and thought I could use the same technique to 'see' underneath Spirit's deck with the MI. While I don't fix the focus, the technique does what amounts to a smart contrast... If anyone would like to to do a mosaic, i would appreciate it (I haven't done them enough to pull them off like you guys) I will post the whole underbelly later, but here are the test images: Cheers and thanks! -------------------- CLA CLL
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Jul 1 2009, 04:27 AM
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Member ![]() ![]() ![]() Group: Members Posts: 809 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
This is brief report on a work in progress: focusing of the MI images
The adaptive contrast was just an attempt to see in low light levels ... with varying success...depending on the quality of the input images. I cobbled together a focus program that takes some aspects of wavelets and the related least square methods. As a worst case input (but easiest for me) I used the processed mosaic (thanks Astro-naught) of JPL's 1st attempt to see beneath Spirit. After I finished the coding and debug, it ran 2 hours of CPU time (!) and deconvolved into utter ugliness. I ran it again and stopped it at iteration 211 (52 mins) and here is the result. <little rock in the SW corner is better (and closer to the camera)...what is going on with the LM wheel?...> <a distant 'rock' seen through the (out of focus and) upside down 'U' of the hull, in the NW corner may be seen by the NAV/PAnN cameras for a check?> <can somebody get on their belly and take a series of pictures at the TEE BEE of the underside of the test rover? ...and post them?> The overall goal is to iteratively compute a new hi-res image and check it by producing a newer low res version, while comparing it to the actual low res (and then adjusting for the next iteration) -- I cheated and used 2 arrays -one each for a 1D representation of X and Y - rather than a more (days! worth of) complex matrix computations. (confession: averaging was used at the the intersections of pixels in the output array ~! ) Since this wost case image (super processed by me and then skillfully mosaiced by Astro0) 'looks' like it can be improved (?some what?.. you tell me...?) then, the next step: is to try this method on the original JPL original images, then contrast enhance, then mosaic. As a note, I can only detect one seam from the mosaic in the deconvolution...I thought I'd see them all. See you in a few days...? Cheers Ustrax: beautiful Tennyson poem...the Crew, Marines, and all of us caught up in this adventure hear you loud and clear... -------------------- CLA CLL
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PDP8E Spirit's UnderBelly Jun 25 2009, 03:01 AM
RoverDriver That's pretty impressive! Can you do the ... Jun 25 2009, 04:56 AM
Astro0 Nice work PDP8E
Here's a mosaic of your image... Jun 25 2009, 11:34 AM
Astro0 Here are the variants that have appeared so far.
A... Jun 25 2009, 11:41 AM
Floyd pdp8 Do you think think the focus deconvolution c... Jun 25 2009, 06:04 PM
PDP8E Hi Floyd, (...nice weather you and I are having .... Jun 25 2009, 06:32 PM
jekbradbury This is something I did a few weeks ago using the ... Jun 26 2009, 12:26 AM
PDP8E jekbradbury: wow! that is one groovy blind dec... Jun 26 2009, 01:50 AM
PDP8E the last one...
Cheers Jun 26 2009, 01:53 AM
Astro0 A quick and rough scaled down version of PDP8E... Jun 26 2009, 03:48 AM
Stu Absolutely awesome work you two. I would love to s... Jun 26 2009, 05:39 AM
PDP8E Here is an off the wall idea to get better focused... Jun 27 2009, 03:38 AM
RoverDriver QUOTE (PDP8E @ Jun 26 2009, 08:38 PM) ...... Jun 28 2009, 07:04 AM
Astro0 I was looking back at the MIs and got to thinking ... Jun 28 2009, 06:50 AM
dvandorn Actually, PDP8E is operating under a misapprehensi... Jun 28 2009, 05:37 PM
tty Is there any way to reduce the aperture external t... Jun 28 2009, 06:07 PM
dvandorn Partially closing the MI's lens cap has been d... Jun 28 2009, 06:17 PM
PDP8E Hey Other Doug,
Thanks for keeping me on the stra... Jun 28 2009, 08:00 PM
RoverDriver QUOTE (PDP8E @ Jun 28 2009, 12:00 PM) ...... Jun 29 2009, 03:12 AM
PDP8E Here is the 1st peek under Spirit's deck taken... Jun 30 2009, 02:41 AM
PDP8E last image:
Cheers
<Astro0 please do your m... Jun 30 2009, 02:43 AM
Astro0 It's an interesting technique PDP8E, but I won... Jun 30 2009, 12:26 PM
PDP8E Astro, first thanks for helping out with the mosai... Jun 30 2009, 02:24 PM
jekbradbury For those who intend to do serious work on attacki... Jun 30 2009, 02:59 PM![]() ![]() |
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