Chapter 1 Introduction l.1 Tremor l.2 Traditional Tremor-Assist Technology l.3 Augmented Reality Based Tremor-Assist Technology l.4 Discussion of Tremor-Assist Technology Bibliography
Chapter 2 Virtually Stabilizing Trembling Hands Using Projection Augmented Reality 2.1 Introduction and Motivation 2.2 Related Work 2.3 System 2.4 Method 2.4.1 Virtual Stabilization 2.4.2 Virtual Remapping 2.4.3 Procedure 2.5 Experiment 2.5.1 Experimental Setup 2.5.2 Evaluation 2.5.3 Discussion 2.6 Conclusion Bibliography
Chapter 3 Visually Stabilizing Trembling Hands Using Optical See.Through Augmented Reality 3.1 Introduction and Motivation 3.2 Related Work 3.3 Pilot Research 3.3.1 Pilot System 3.3.2 Hand Modeling 3.3.3 Geometric Transform 3.3.4 Stabilized Filter 3.3.5 Release and Testing 3.4 System 3.5 Method 3.5.1 Calibration 3.5.2 Synchronization 3.5.3 Tremor Analysis and Stabilization 3.5.4 Procedure 3.6 Experiment 3.6.1 Experimental Setup 3.6.2 Evaluation 3.6.3 Discussion 3.7 Conclusion Bibliography
Chapter 4 Expending Reachable Range of Trembling Hands Using Stabilized Projection Augmented Hand 4.1 Introduction and Motivation 4.2 Related Work 4.3 “Extended Hand” 4.4 Method 4.4.1 Movement Stabilization of EH 4.4.2 Gesture Stabilization of EH 4.5 Experiment 4.5.1 Experimental Setup 4.5.2 Results 4.5.3 Discussion 4.6 Application 4.7 Conclusion Bibliography
Chapter 5 Discussion and Conclusion S.1 General Discussion 5.2 Limitations and Future Work 5.3 Conclusion Bibliography
Augmented Reality (AR), a technology that displays virtual information directly into real-world environment, has been wildly applied in many fields, such as entertainment, manufacturing, and education. In recent years, AR has been explored to help visually impaired and hearing-impaired people. However, AR has rarely developed to support other impaired persons. This book mainly introduces my researches on AR based tremor-assist technologies. Many novel AR technologies are studied to support hand impaired persons in Human-Computer Interactions (HCI) and Computer-Mediated Communication (CMC). Hand tremors are featured with involuntary shaking of hands, which reduce the level of hand capability to perform intentional activities. With widespread use of computers and touching panels, typing or touching becomes very common interactive way to access devices. However, it is difficult for individuals with hand tremors to type or touch devices, especially which have small densely placed targets, like keyboard. Traditional approaches that help trembling hands exist some limitations, including body burdens, muscle fatigues, non-application of ordinary device, and rarely solve the problems of HCI and CMC of trembling hands. Therefore, I investigate approaches to facilitate individuals to use their trembling hand to directly interact with ordinary devices. I focus on two critical issues of hand tremors in HCI and CMC, and develop AR technologies to enhance individual with tremors in keyboard typing and reaching. These researches are reiterated over and discussed in the following chapters. Chapter 1: Introduction. This chapter introduces tremors, especially two typical hand tremor features found; and discusses traditional tremor-assist technologies including medical treatments, "mechanical suppression" technologies, "functional electric stimulation suppression" technologies, and "active suppression" technologies; finally outlines my researches on AR based tremor-assist technologies.