Thank you Julien.

I just give a try with SURF, It works fine on the machine.

Regards,

Rémi

Le lundi 24 février 2014 15:38:08 UTC+1, Julien Michel a écrit :
>
>  
> Hi,
>
> Unfortunately, there is a down side to the very efficient implementation 
> of siftfast, which is its stability ... On some machine we experience 
> random crashes tracing back to sift fast code, and I do not know how to fix 
> this. You can also try the SURFKeyPointSetImageFilter which produces SURF 
> keypoints. It is less fast, but more stable, and it has the same API as 
> SiftFastImageFilter.
>
> Regards,
>
> Julien
>
> Le 24/02/2014 13:26, remicres a écrit :
>  
> Hi,
>
> We are playing with a code which uses otb::SiftFastImageFilter, but we are 
> facing a segmentation fault issue.
>
> The source code has been compacted here to keep only the problem: 
> http://pastebin.com/LHWv5eQz
> (As you can see this pipeline is simply composed of a otb::ImageFileReader 
> connected to a otb::SiftFastImageFilter.)
>
> When we try this toy on little images, it works fine. But when we give a 
> try with our 50k x 40k image, there is this segfault issue!
>
> I doubt physical RAM is the point (we are on a 1TB RAM smp node).
> OTB version is 3.16
> Os is Scientific Linux 6.2 (Carbon)
> We try to learn more with GDB, and we get this:
>
>
>
>
>
> * Program received signal SIGSEGV, Segmentation fault. 0x00002aaab318cb92 
> in sift_aligned_malloc(unsigned long, unsigned long) ()    from 
> /opt/cluster/gcc-soft/GEOSUD-StandAlone/gcc-4.6.x-soft/OTB/3.16-mapnik-2/lib/otb/libsiftfast.so.3.16
>  
> *(You can get the entire output log here: http://pastebin.com/c6qnA08N)
>
> Do you guys have some idea to help us? 
>
> Thanks,
>
> Rémi
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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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