Non-Verbal Vision-Based Interfaces

1 Introduction 2 Vision-Based Input Francis K.H. Quek Vision Interfaces and Systems Laboratory (VISLab) Electrical Engineering and Computer Science Department The University of Illinois at Chicago Chicago, IL 60607 quek@eecs.uic.edu http://vislab.eecs.uic.edu All computer input devices serve one essential purpose. They transduce some motion or energy from a human agent into machine useable signals. One may therefore think of input devices as the `perceptual organs' by which computers sense the intents of their human users. Since vision is the primary sense by which humans receive interaction from others, we expect computer vision to play a concomitant role in computer interaction. We outline this role, highlight the challenges to the development of vision-based interfaces, and propose an approach for overcoming these impediments. Prospective vision research areas for HCI include human face recognition, facial expression interpretation, lip reading, head orientation detection, eye gaze..