2003 Volume 32 Issue 4 Pages 446-453
We describe a new 3D input interface using string-like deformable objects to more effectively support human computer interaction. To achieve real-time 3D measurement, we use an infrared camera with a structured half-mirror. This configuration allows us to detect direct and reflected infrared images simultaneously. It is especially advantageous in terms of target detection reliability and simplified three-dimensional processing due to the reflected symmetry and the epipolar consistency. Experimental results compared 3D measurement accuracy against a Polhemus tracker show that our approach is stable and accurate. Our interface has also been used to experiment with the string-link interaction in virtual and real world. The natural string movements provide users with more intuitive interaction for Perceptual userinterface.
