At the CeBit conference in Hannover, Germany, Fraunhofer Institute researchers will present new human-computer interfaces that demonstrate how computers can be operated by gesturing or pointing a finger. The iPoint Presenter uses a series of cameras to observe a person standing in front of a projection screen. When users start moving their hands, the computer reacts without being touched. Users can point to buttons or use gestures to manipulate virtual objects. Multipointing interaction enables users to issue commands using multiple fingers for tasks such as rotating, enlarging, or minimizing objects. Fraunhofer scientist Paul Chojecki says the iPoint Presenter is unique because it is entirely contact-free, making it ideal for use in an operating theater or during a presentation in a large auditorium.

Meanwhile, researchers from the Fraunhofer Institute for Digital Media Technology (IDMT) are teaching computers to understand human gestures and are developing a method for automatically recognizing different hand signals. A prototype containing an intelligent camera connected to a computer running IDMT pattern recognition software will be at the conference where it will record and analyze visitors’ gestures, converting the hand signals into machine commands.

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