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1 .This is Scientific American 60-Second Science. I'm Larry Greenemeier. Got a minute?
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2 .Foldable white canes help the visually impaired navigate their surroundings.
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3 .But the guide stick's tactile nature offers only so much information.
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4 .The cane's user must manually find and avoid obstructions.
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5 .But new high-tech canes are on the horizon.
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6 .Last year researchers in India tried to fill in some of the missing info with their experimental SmartCane.
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7 .The device uses an attached ultrasonic transmitter and a sensor that vibrates the cane to warn its users when an obstacle is within three meters.
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8 .Students at the U.K.'s Birmingham City University are developing a cane that can even identify acquaintances as they approach.
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9 .Called the 'XploR' mobility cane, it includes an embedded digital camera that analyzes the faces of people walking by and compares their images against a database stored on a memory card in the cane's handle.
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10 .If there's a facial recognition match, the cane alerts the user's smartphone via Bluetooth.
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11 .The phone then identifies the approaching person to the user via its speaker or earbuds.
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12 .The students are building a prototype they'll test later this year.
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13 .The hurdles are significant: facial recognition is a tough problem, especially outdoors.
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14 .But if the XploR works, it could actually give the visually impaired a leg up on everyone else, especially those of us who never remember people's names.
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15 .Thanks for the minute, for Scientific American 60-Second Science. I'm Larry Greenemeier.
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