Tag Images with Your Mind

25 11 2009

Assigning textual tags to an image is an important task because tags are needed for things like image search. When you search for an image of a “cat,” modern search engines can only identify an image as containing a cat if the tag “cat” is associated with it.

Having people tag images by hand is an onerous task. Shenoy and Tan of Microsoft Research developed a way to tag images automatically by reading people’s brain scans while they look at images. The people did not even have to specifically think about trying to tag the image; they merely had to passively observe it.

Reading Minds

The technique requires using an electroencephalograph (EEG), a cap with electrodes placed on the scalp in regular locations that can each measure brain activity in their local area.

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