Author Topic: New Cassini Noise Reduction Algorithm for PI?  (Read 1639 times)

Offline jkmorse

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New Cassini Noise Reduction Algorithm for PI?
« on: 2015 May 06 13:44:43 »
Juan,

I see that NASA has announced a new noise reduction technique to clean up Cassini's images of Titan that, based on the pictures I have seen, looks incredible.  NASA says they can only use the algorithm on a few critical images because it is so computationally intense, but I figure you and your team can reduce that complexity in no time  :smiley:

Any timeline for when you'll be making an announcement  O:)

Best,

Jim
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Offline Carlos Milovic

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Re: New Cassini Noise Reduction Algorithm for PI?
« Reply #1 on: 2015 May 12 10:41:00 »
Do you have any link?
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Carlos Milovic F.
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Offline Carlos Milovic

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Re: New Cassini Noise Reduction Algorithm for PI?
« Reply #2 on: 2015 May 12 10:50:26 »
Found it. At a first glance, it seems to be a technique applied to radar images. It may not be applicable to normal images, due to the different reconstruction process that is needed. I'll take a deeper look.
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Carlos Milovic F.
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Offline Carlos Milovic

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Re: New Cassini Noise Reduction Algorithm for PI?
« Reply #3 on: 2015 May 12 12:01:15 »
Insights into Titan's geology and hydrology based on enhanced image processing of Cassini RADAR data
    Antoine Lucas1,2,*, Oded Aharonson1,3, Charles Deledalle4,5, Alexander G. Hayes1,6, Randolph Kirk7 andElpitha Howington-Kraus7
Journal of Geophysical Research: Planets
Volume 119, Issue 10, pages 2149–2166, October 2014

Unfortunately, I don't have access to it right now. Nevertheless, from what I read of speckle noise in SAR images, this algorithm seems not well suited for our images. IMO, TGVDenoise should be superior.
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Carlos Milovic F.
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Offline jkmorse

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Re: New Cassini Noise Reduction Algorithm for PI?
« Reply #4 on: 2015 May 13 11:46:20 »
Thanks for testing  :D

Best,

Jim
Really, are clear skies, low wind and no moon that much to ask for? 

New Mexico Skies Observatory
FLI Microline 16803
Planewave CDK17 - Paramount MEII
Planewave IFR90 - Astrodon LRGB & NB filters
SkyX - MaximDL - ACP

http://www.jimmorse-astronomy.com
http://www.astrobin.com/users/JimMors