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...latest "intelligent" technologies to trickle down to consumer cameras, is supposed to make photography more convenient. Some cameras with face detection are designed to warn you when someone blinks; others are programmed to automatically take a picture when somebody smiles - a feature that, theoretically, makes the whole problem of timing your shot to catch the brief glimpse of a grin obsolete. Face detection has also found its way into computer webcams, where it can track a person's face during a video conference or enable face-recognition software to prevent unauthorized access...
...those, and you feed it five more, you might gain five, but lose three," says Vincent Hubert, a software engineer at Montreal-based Simbioz, a tech company that is developing futuristic hand-gesture technology like the kind seen in Minority Report. It's the same kind of problem speech-recognition software faces in handling unusual accents. (See the 25 best back-to-school gadgets...
...work with. As HP noted in its blog post, the lighting in the YouTube video was dim, and, the company said, there wasn't enough contrast to pick up the facial shadows the computer needed for seeing. (An overlit person with a fair complexion might have had the same problem.) A better camera wouldn't necessarily have guaranteed a better result, because there's another bottleneck: computing power. The constant flow of images is usually too much for the software to handle, so it downsamples them, or reduces the level of detail, before analyzing them. That's one reason...
...blink problem Wang complained about has less to do with lighting than the plain fact that her Nikon was incapable of distinguishing her narrow eye from a half-closed one. An eye might only be a few pixels wide, and a camera that's downsampling the images can't see the necessary level of detail. So a trade-off has to be made: either the blink warning would have a tendency to miss half blinks or a tendency to trigger for narrow eyes. Nikon did not respond to questions from TIME as to how the blink detection was designed...
...have long dominated French politics: France's exclusive grandes écoles. These polytechnic, administrative and business graduate schools not only hone the intellectual mettle of the students they accept but also help them create the networks they'll need to rise to the highest circles of power. The problem is that the seats at these schools tend to go to the children of the élite, ensuring that power stays in the upper class - even in the same families - from generation to generation. (Read "Education Abroad: Breaking the Bachot...