On 9/26/2011 1:32 PM, Andre Engels wrote:
Every small category is a part of a big category. A system such as
this will not be able to specify plant species, but it might well be
able to find pictures of plants. If it then gives a list of plant
pictures that are not in some plant category, animal pictures that are
not in animal category, buildings that are not in a regional building
category, maps that are not in a map of category, paintings that are
not in a painter category, famous people that are not in a people
category etcetera, it could deliver those to volunteers to further
classify.
The ImageCLEF people are getting such great results because
they're working in a specific and limited domain
http://www.imageclef.org/2011/Plants
The goal is to identify plants by looking at their leaves. An
obvious application is to build this into a mobile device -- you could
snap a picture of a leaf on a plant or remove a leaf and photograph it
against a good surface and it tells you what sort of plant you're
looking at. This would be a great tool for any gardener's toolbox,
anywhere on earth.
I be cautious of species indentification base solely on leaf structure,
while I dont doubt the skills of the people doing the work nor that they
arent being meticulious but any botanist will tell you that species
identification relies on multiple factors including plant structure,
flowering details etc as an exampe just look at the 350+ species of
grevillea <http://en.wikipedia.org/wiki/Grevillea> I'd be very adverse to
using such a tool for identification of species in an encyclopeadic context.
It may be work for genus level but even there we'd be finding false
positives.
I'm looking forward to seeing people solve more problems like this.
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Gn. Blogg: