Shift: A Technique for Operating Pen-Based Interfaces Using Touch (Daniel Vogel and Patrick Baudisch)

We propose a pointing technique we call Shift that is designed to address these issues. When the user touches the screen, Shift creates a callout showing a copy of the occluded screen area and places it in a non-occluded location. The callout also shows a pointer representing the selection point of the finger. Using this visual feedback, users guide the pointer into the target by moving their finger on the screen surface and commit the target acquisition by lifting the finger.

Shift that is designed to address these issues. When the user touches the screen, Shift creates a callout showing a copy of the occluded screen area and places it in a non-occluded location. The callout also shows a pointer representing the selection point of the finger. Using this visual feedback, users guide the pointer into the target by moving their finger on the screen surface and commit the target acquisition by lifting the finger. Who Needs a Stylus When You Have Fingers? (Rob Knies)
Baudisch, working with former intern Dan Vogel, has devised a solution, called Shift, that enables accurate, finger-based input to operate mobile devices effectively. That, it seems, is what people on the go—and those who need to be productive while quaffing their periodic jolt—really need.
The research project is described in a paper entitled Shift: A Technique for Operating Pen-Based Interfaces Using Touch. The paper received a Best Paper award for CHI, the annual Conference on Human Factors in Computing Systems, which began April 28 in San José, Calif., and runs through May 3.
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