face recognition

NEW WORK: Eternal Portraits

Facebook uses face recognition software to identify its users in photos. This works via a ‘template’ of your facial features that is created from your profile images. These features — the distance between your eyes, the symmetry of your mouth — generally do not change over time. Unlike a photograph, which captures some ephemeral expression of who you are at a particular moment, a face recognition template forever remains your portrait.

 
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It sounds like a daunting task, but some researchers at Harvard and MIT have banded together to basically "reverse engineer" the human brain's ability to process visual data into usable information. However, instead of testing one processing model at a time, they're using a screening technique borrowed from molecular biology to test a range of thousands of models up against particular object recognition tasks. To get the computational juice to accomplish this feat, they've been relying heavily on GPUs, saying the off-the-shelf parallel computing setup they've got gives them hundred-fold speed improvements over conventional methods.

 
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