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New Mathematical Methodology using Sparsity

 
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Dan



Joined: 07 Feb 2003
Posts: 26
Location: Chicago, IL

PostPosted: Thu Mar 04, 2010 9:08 am    Post subject: New Mathematical Methodology using Sparsity Reply with quote

Please read the entire article. Could you use this technique to recover poorly sampled/noisy images?

http://www.wired.com/magazine/2010/02/ff_algorithm/all/1

Thanks,

Dan
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NITeam



Joined: 01 Feb 2003
Posts: 3101

PostPosted: Thu Mar 04, 2010 12:14 pm    Post subject: Reply with quote

It is not very suitable for modern digital cameras, the way their hardware capture images. The software side would have some problems too, but if hardware is not suitable to use that method then it doesn't really matter. Not to say that the method is not good, it is certainly good but good in circumstances different than what we usually deal with in digital cameras and images they produce.

Vlad
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Dan



Joined: 07 Feb 2003
Posts: 26
Location: Chicago, IL

PostPosted: Thu Mar 04, 2010 8:53 pm    Post subject: Reply with quote

Thanks for you quick reply. After I followed up on the article cited I learned that the image must be acquired using very special hardware which ensures that the image is sampled randomly. For anyone interested in the entire technical details the following link will take you there.


(note page works w IE but not FFox)
http://content.digitalwell.washington.edu/msr/external_release_talks_12_05_2005/15994/lecture.htm

I did not have a chance to edit my note before the time you had already replied. It's comforting to confirm, in another way once again, that you guys at NeatImage are fully up to date and awfully smart Smile

Thanks,

Dan
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NITeam



Joined: 01 Feb 2003
Posts: 3101

PostPosted: Thu Mar 04, 2010 8:57 pm    Post subject: Reply with quote

Thank you and yes you are certainly right, the hardware has to be special to support that method. Digital cameras work somewhat differently, so we have to use other methods with their images.

Kind regards,
Vlad
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Drazick



Joined: 12 Mar 2016
Posts: 2

PostPosted: Sat Mar 12, 2016 1:36 pm    Post subject: Reply with quote

This method is generalized by Dictionary Learning.

To some extent, I guess you could say that Wavelets are also Dictionary based method.

So Neat Image is related to this Smile.
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