Hugh Pickens writes "A car-seat identifier developed at Japan's Advanced Institute of Industrial Technology by Associate Professor Shigeomi Koshimizu can recognize a person by his or her rear end with 98 percent accuracy when the person takes a seat in his car. The bucket seat's lower section is lined with 360 pressure sensors that measure pressure on a scale from 0 to 256, sending information to a laptop, which aggregates the information, generates the key data and produces a precise map of the seated person's rear profile. Researchers say traditional biometric techniques such as iris scanners and fingerprint readers cause stress to people undergoing identity checks, while the simple act of getting seated carries less psychological baggage. Koshimizu wants to see his work available commercially as an anti-theft product in two to three years if automakers agree to collaborate. He sees possibilities of this device being used beyond auto-theft identity protection to a device for security identification in office settings, where users log on to their PCs as they sit down."