[Insight-developers] FFT Patch / Tcon Today Afternoon

[Gaëtan Lehmann]

Le 9 sept. 11 à 22:10, Cory Quammen a écrit :

> Bill,
>
> It is currently possible to directly instantiate and use the specific
> FFT filter implementations from Vnl and FFTW. Is that what you mean?

This is possible, but the mechanism currently used in not very nice  
(I'm the culprit, I've implemented it).

Using a factory for that task would be a lot nicer.
My only problem is:

   How do we ensure that the FFTW is used when FFTW is available?

This is not something obvious to me with the factory.

Gaëtan


PS: Another possible FFT implementation pointed out by Cory at the  
Boston meeting:

   http://kissfft.sourceforge.net/

>
> Cory
>
> On Fri, Sep 9, 2011 at 4:08 PM, Bill Lorensen  
> <bill.lorensen at gmail.com> wrote:
>> Since there are several FFT options, perhaps we should design an  
>> interface
>> for  FFT filters that can use the itk factory mechanism to access  
>> specific
>> implementations. I don't know if our current class structure  
>> permits this.
>>
>> In general, I don't think we have utilized the power of our factory
>> mechanisms.
>>
>> Bill
>>
>> On Fri, Sep 9, 2011 at 3:44 PM, Luis Ibanez  
>> <luis.ibanez at kitware.com> wrote:
>>>
>>> Another FFT option
>>>
>>>      http://spectraltoolkit.sourceforge.net/
>>>
>>>
>>> --------------------------------------------------------------------
>>> On Fri, Sep 9, 2011 at 3:41 PM, Luis Ibanez  
>>> <luis.ibanez at kitware.com>
>>> wrote:
>>>> One potential replacement for FFT library in VXL
>>>>
>>>>                   http://www.ffte.jp/
>>>>
>>>>
>>>>    -------------------------------
>>>>
>>>> On Fri, Sep 9, 2011 at 11:41 AM, Luis Ibanez <luis.ibanez at kitware.com 
>>>> >
>>>> wrote:
>>>>> We will use:
>>>>>
>>>>>   Please join the following teleconference line:
>>>>>       Toll-Free #:      1-800-704-9804
>>>>>       International #:  1-404-920-6604
>>>>>       Participant Code: 61466276
>>>>>
>>>>>
>>>>>   Thanks
>>>>>
>>>>>        Luis
>>>>>
>>>>> --------------------
>>>>> On Fri, Sep 9, 2011 at 10:48 AM, Luis Ibanez <luis.ibanez at kitware.com 
>>>>> >
>>>>> wrote:
>>>>>> Let's find a time later today or early next week
>>>>>> to have a technical discussion about the details
>>>>>> of FFT in ITK, and in particular about this patch:
>>>>>>
>>>>>> http://review.source.kitware.com/#change,2625
>>>>>>
>>>>>> We suggest 3pm  EDT today.
>>>>>>
>>>>>> Would that time work for you ?
>>>>>>
>>>>>>
>>>>>>   Luis
>>>>>>
>>>>>
>>>>
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>>
>
>
>
> -- 
> Cory Quammen
> Research Associate
> Department of Computer Science
> The University of North Carolina at Chapel Hill
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-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://mima2.jouy.inra.fr  http://www.itk.org
http://www.bepo.fr

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