[Insight-users] Testing GPU-based Median Filters

[Gaëtan Lehmann]

Hi,

Le 12 janv. 10 à 13:27, <Robert.Atwood at diamond.ac.uk> <Robert.Atwood at diamond.ac.uk 
 > a écrit :

>
> Hi,
>
> I'd be especially interested if 'large' can be in excess of 5 Gb up to
> 100 Gb -- especially if multiple GPU boards can be used to advantage
> obviously requiring some strategy for sending sections to the GPU's.
>
> 1. More generally I'd think  'small' is smaller than the GPU board
> memory
>                     'medium' is larger than GPU board memory but much
> smaller than main memory
>                     'large' is larger than main memory

No ITK filter is able to run large test as you define them at this  
time, without using the streaming filter for example.
Maybe it's not a good option to add this capability in this specific  
filter.

> The total (input + output ) may be the important size to consider.
>
> 2. no opinion
>
> 3. I find values greater than radius=3 not especially useful,  but  
> other
> people may have other requirements. Radius=1 or 2 (kernel width 3 or  
> 5)
> is what I use  most often.

I agree that bigger size are not generally that useful, but ITK's  
median filter is able to work with any kernel size, so it would be  
great if the filter can provide the same capability.

The same capabilities and results - only the implementation and the  
performance differ.

Gaëtan

>
> I can try versions on the system here (multi-Tesla 1070 units) some  
> time
>
> Robert
>
>
>
>
> -----Original Message-----
> From: insight-users-bounces at itk.org
> [mailto:insight-users-bounces at itk.org] On Behalf Of Christopher Share
> Sent: 11 January 2010 23:19
> To: insight-users at itk.org
> Subject: [Insight-users] Testing GPU-based Median Filters
>
> Hi,
>
> I'm in the process of developing several different GPU-based median
> filters for the ITK (as part of the 09/10 VPAC Summer Project - this
> year's project doesn't have a web page yet but here's a link to last
> years' - http://www.vpac.org/?q=node/290). I have a question regarding
> the testing of the filters. I'd like to test the performance of the  
> GPU
> filters under different conditions, however I'm not clear about how
> these filters are used in practice.
>
> For the purposes of testing the filters I have the following  
> questions:
>
> 1. What image sizes should be tested? I was thinking of "small",
> "medium" and "large" but I'm not sure what these sizes would be wrt to
> the ITK.
>
> 2. Should I test RGB/RGBA images as well as greyscale images?
>
> 3. For the median filter case, what radius's should be tested? Should
> different radius's in different directions be tested?
>
> Cheers,
>
> Chris Share
> _____________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.html
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-users
>
> -- 
> This e-mail and any attachments may contain confidential, copyright  
> and or privileged material, and are for the use of the intended  
> addressee only. If you are not the intended addressee or an  
> authorised recipient of the addressee please notify us of receipt by  
> returning the e-mail and do not use, copy, retain, distribute or  
> disclose the information in or attached to the e-mail.
> Any opinions expressed within this e-mail are those of the  
> individual and not necessarily of Diamond Light Source Ltd.
> Diamond Light Source Ltd. cannot guarantee that this e-mail or any  
> attachments are free from viruses and we cannot accept liability for  
> any damage which you may sustain as a result of software viruses  
> which may be transmitted in or with the message.
> Diamond Light Source Limited (company no. 4375679). Registered in  
> England and Wales with its registered office at Diamond House,  
> Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11  
> 0DE, United Kingdom
>
>
>
>
> _____________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.html
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-users

-- 
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://voxel.jouy.inra.fr  http://www.itk.org
http://www.mandriva.org  http://www.bepo.fr

-------------- next part --------------
A non-text attachment was scrubbed...
Name: PGP.sig
Type: application/pgp-signature
Size: 203 bytes
Desc: Ceci est une signature ?lectronique PGP
URL: <http://www.itk.org/pipermail/insight-users/attachments/20100112/3f959ae4/attachment.pgp>