I got this book at siggraph, it's now in digital form. http://www.dspguide.com/ch24/6.htm
Very helpful and idea-provoking. :) On Apr 28, 2013, at 12:34 PM, Amaan Akram <[email protected]> wrote: > Some practical applications > > Jos Stam's classic fluid dynamics paper that uses fourier transforms > > http://www.dgp.toronto.edu/people/stam/reality/Research/pdf/jgt01.pdf > > FFTs applied to images > http://www.cs.unm.edu/~brayer/vision/fourier.html > > People create noise textures in FFTs, or analyze noise via FFTs > > There's also the classic spectrum visualization that is also dependent on FFTs > > Jens Lindgren has a very interesting application of FFTs too. Jens? > > The classic 'low-cut' or high-pass filters in photoshop are also > applications of ffts > > > On 28 April 2013 15:59, olivier jeannel <[email protected]> wrote: >> Helps a bit, thank's ;) >> >> Le 28/04/2013 14:47, Eric Turman a écrit : >>> The internet is full of information...but its not always comprehensible. >>> For example: wikipedia brings up as nearly a technical explanation (in a >>> concise form ;P ) as the fftw.org >>> >>> FFT is used with periodic waveform interaction to tease out values >>> --decompose into sine components. (I hope that I'm not mangling the meaning >>> by trying to cram it down into one sentence) This link does a better job at >>> explaining it: >>> http://www.earlevel.com/main/2002/08/31/a-gentle-introduction-to-the-fft/ >>> >>> There are so many uses for FFT. It is a valuable (arguably critical) tool >>> for all sorts of signal processing ranging from noise filtering to 3D >>> tracking. But perhaps a more immediate and practical application of it in >>> the 3D world is its facilitation of the deformation calculation of Amaan's >>> aaocean polygonal surface http://www.amaanakram.com/?page_id=131 >>> >>> I hope this helps :) >>> >>> Cheers, >>> -=Eric > > > > -- > 3D Artist/TD @ The Mill, London > http://www.amaanakram.com
