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VIDEO SPECTRAL Analyze and Joseph FOURIER Method

Posted: Fri Apr 13, 2007 3:43 pm
by NeatOliver
Why you guys dont use the similar method like adobe audition with the SPECTRAL analyze method
to fund and capture the noise in the video? See the .MOV video link (a full tutorial)
by Jason Levine the programer from Adobe Audition. (Direct Link) :

http://www.repaire.net/site/marketing/a ... ctrale.php

(If you whant the ENGLISH audio version only: Play this video with Quicktime and choose;
"... Sequence, language" something like that, because i dont use it.

And now, what about the Joseph FOURIER (Physician and Mathematician) "method" ? See the links:

http://home.planet.nl/~ber03728/4N6site/main.htm
http://www.ph.tn.tudelft.nl/Courses/FIP ... s/fip.html
http://www.csse.uwa.edu.au/~pk/Forensic/index.html

I know, your method is very different, but...
It's a nice idea, you dont think so?!

See you NVTeam ! :P

Posted: Fri Apr 13, 2007 6:33 pm
by Maccara
Probably because recognizing noise in spectral view for audio is _quite_ different than in video?

There's a reason why it is very useful for audio (I've used audition and tried it - very useful).

FFT methods are very useful to remove noise in video too. There are some pretty impressive noise filters for this, for example fft3dfilter.

I still find neatvideo achieving better results with less effort.

Posted: Fri Apr 13, 2007 8:14 pm
by NVTeam
Yes, those are nice methods. Spectral analysis and filtration is a traditional method, it is often used to reduce noise in images and video data as well. However, FFT alone is not better (in terms of resulting filtration quality) than our method, so that is the main reason.

Vlad