Hi Ofer,
For now we do not have anything specific to GPU in Orfeo ToolBox.
however, you can use all ITK features from within OTB, and ITK has
indeed made some progress toward GPU support [1].
If you have a look at this, please report to the mailing list, as this
topic can be of interest for others as well.
Regards,
Julien
[1] http://www.itk.org/Wiki/ITK/Release_4/GPU_Acceleration
Le 16/06/2015 14:49, Ofer Zilberstein a écrit :
Sound great
Does OTB can take the advantage of GPU computing to get acceleration
(btw, I saw some presentation on ITK on CUDA) ?
BR
Ofer
I saw some communication about it
On Monday, June 1, 2015 at 1:32:17 PM UTC+3, Grizonnet Manuel wrote:
Dear all,
we are very pleased to announce that after months of hardwork
Orfeo ToolBox 5.0, codename "Chalcidinae" is out! After Orfeo
ToolBox 4.0 which brought the support of latest ITK, we feel this
should be a new major release since it involves in-dept changes in
the way Orfeo ToolBox is organized and builds. The focus for this
release is therefore not on new functions, but changes are
non-the-less important: easier build, better code organization,
easier contributions...
Modularization: a big step forward
The 2988 source files composing Orfeo ToolBox are now organized
into a set of 146 modules, folded into 16 groups, using ITK new
code organization and CMake scripts. Modules are self-contained:
headers, code, tests and applications are located in the module,
it is therefore much easier to find your way in, since related
files are now located close to each other. Modularization also
brought a better documentation (our API documentation
<https://www.orfeo-toolbox.org/doxygen-current/group__OTBTextures.html>
is now organized by modules) and Testing (tests can be filtered by
module on our Dashboard
<http://dash.orfeo-toolbox.org/viewTest.php?onlypassed&buildid=184445>).
CMake scripts ensure dependencies tracking between module : each
module can be deactivated, which will in turn deactivate any
dependant module. As third party software are also handled by
dedicated modules, we were able to make almost all of them
optional (and OFF by default): a minimal OTB can be built with
only ITK and OSSIM.
You can find more information on how to construct an OTB module
here
<https://www.orfeo-toolbox.org/introducing-orfeo-toolbox-new-modular-architecture/>.
Third party policy reviewed
As part of this refactoring, we also reviewed our third party
policy: by the past, code from third party software use to be
included in Orfeo ToolBox source code for the sake of a simpler
building procedure for users. However, since many dependencies are
now completely optionnal (and since we now have a superbuild
procedure, which I will describe later in this post), this is no
longer needed. We therefore removed all third party code from OTB,
with the notable exception of 6S, SiftFast (no package available
on any system whatsoever) and ossimPlugins (a lot of code
contributed by Orfeo ToolBox in this one). We also removed a lot
of third party software which were not needed anymore (expat,
edison, openthread...).
Superbuild comes to rescue you
If all third party software are removed from Orfeo ToolBox source
code, it does not mean Orfeo ToolBox is more difficult to build:
it is actually quite the opposite thanks to the Superbuild
feature, a CMake project allowing to download, build and install
all required dependencies with controlled version and
configuration, and then build Orfeo ToolBox on top of it. With
this way of building Orfeo ToolBox, a very small set of
pre-installed software is actually required before you can build a
fully fonctional and complete Orfeo ToolBox, as explained in this
blog post
<http://jordiinglada.net/wp/2015/05/27/installing-otb-has-never-been-so-easy-8/>.
A new way for code contribution
Modularization also brought a new way for code contribution :
remote modules. You can actually write a module of your own,
publish it on a git repository somewhere, and have it referenced
through an option during Orfeo ToolBox cmake configuration. When
turning this option ON, cmake will checkout the module code in
Orfeo ToolBox source tree and build it as a regular module. And
yes, it means we could provide dashboard testing and packaging for
those external module as well. You can therefore contribute to
Orfeo ToolBox without actually chaning a single line of code in
Orfeo ToolBox. And you get to author, host and manage the source
code of your contribution. A list of existing remote modules is
maintained here <https://www.orfeo-toolbox.org/external-projects/>.
Bugs hunt
We actually fixed quite a lot of bugs during the last weeks of the
release preparation, and 10 more were fixed between the release
candidate and the final release. Check them out in the release
notes
<http://hg.orfeo-toolbox.org/OTB/file/255c8c7fb356/RELEASE_NOTES.txt>,
some very annoying one now belong to the past!
Get OTB 5.0 and Monteverdi2 0.8.1
As usual, sources (OTB, Monteverdi2) and binary packages
(Monteverdi2 for Mac OS X and Windows) can be downloaded on
Sourceforge <http://sourceforge.net/projects/orfeo-toolbox/>. For
Linux users, new version will be soon available for update through
your favorite package manager software. We are maintaining now a
list of OTB binary packages
<http://wiki.orfeo-toolbox.org/index.php/Binary_packages_status>
available where you will find supported platforms and package
versions.
We welcome your feedback and request, and encourage you to join
the OTB community and mailing list
<http://groups.google.com/group/otb-users>.
Best regards,
--
Manuel GRIZONNET
--
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--
Julien MICHEL
CNES - DCT/SI/AP - BPI 1219
18, avenue Edouard Belin
31401 Toulouse Cedex 09 - France
Tel: +33 561 282 894 - Fax: +33 561 283 109
--
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