[ros-users] Object recognition + positioning package?
dejan.pangercic at gmail.com
Tue Feb 8 16:24:38 UTC 2011
> Do you recommend any minimal size for the image DB?
> I am having trouble (actually runtime errors) while using the clustering
The number of images and the number of extracted SIFT features on
average per image are the ones that basically directly influence the
parameters tree_k and tree_levels. I unfortunately do not have
anything else but a highly intuitive guess that 20 images with 500
SIFT features on average shall go in the database with (tree_k,
tree_levels) = (3, 3) or (4, 4). I used (6, 6) for ~150 images with
500 SIFT features.
> I will dig in the problem today but do you think there any chance this is
> linked to my image DB being too small (around 20 pictures)?
> In other words: is it just me? :)
The size of the DB shall not give runtime errors.
> Finally, do you know a kind of automatized way to import the germandeli/
> http://www.germandeli.com/ catalogue you advertise on the wiki? So far I've
> been manually saving the thumbnails from the website...
Yes, we do. Please a have look into germandeli_crawler package, you
will find a README.txt which will tell you how to run it.
cheers and let me know if you get into more troubles,
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MSc. Dejan Pangercic
Intelligent Autonomous Systems Group
Technische Universität München
Telephone: +49 (89) 289-26908
E-Mail: dejan.pangercic at cs.tum.edu
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