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MOTOR AND VISUAL PRINCIPLES IN A HUMAN-COMPUTER INTERFACE TRAINING SYSTEM FOR REHABILITATION
by
Shih-Ching Yeh
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(COMPUTER SCIENCE)
December 2008
Copyright 2008 Shih-ChingYeh
Object Description
| Title | Motor and visual principles in a human-computer interface training system for rehabilitation |
| Author | Yeh, Shih-Ching |
| Author email | scyehluke@gmail.com; shihchiy@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Computer Science |
| School | Viterbi School of Engineering |
| Date defended/completed | 2008-05-13 |
| Date submitted | 2008 |
| Restricted until | Unrestricted |
| Date published | 2008-09-12 |
| Advisor (committee chair) |
Alexander Sawchuk Alexandre R.J. Francois Albert Rizzo |
| Advisor (committee member) |
Ulrich Neumann Lawrence Pryor |
| Abstract | More recently, virtual reality (VR) enhanced health games, providing intensive practice, unlimited repetition with ongoing feedback and goal-defined environment, have been explored as a therapeutic tool that can apply to interdisciplinary research areas for medical health rehabilitation.; We describe interdisciplinary work on the development, design and evaluation of an interactive VR system for rehabilitation of functional deficits of the upper extremities in individuals who have suffered a stroke or other brain injury. We describe numerous interactive VR tasks targeting various motor patterns that actively drive the patient’s behavior based on the therapist’s rehabilitation goal. We present these tasks both in terms of patient-specific need, and from a therapy perspective.; To support the multiple degrees of freedom spatial tracking required for complex motor interaction with stereoscopic virtual training scenarios, we develop an integrated webcam/LED tracking system. Our primary design goal is to create a low cost tracking system with wireless connectivity that can overcome some of the practical challenges encountered in the delivery of home-based tele-rehabilitation.; While attempting to build an immersive virtual environment with enabling technologies composed of various display (rendering) systems, sensing systems, haptics devices or game features, the mechanism of interaction between human and computer systems grows into highly sophisticated domains. Segmentation of human “real” performance from behavior imposed by computer systems is significantly important especially if it is applied to people with disability or motor impairment. As a result, we propose various kinds of motor features (such as efficiency, discontinuity, oscillation or stability etc.) to measure human behavior quantitatively in order to support the computation of human-computer interaction.; To analyze the data from a three-month clinical pilot test with five stroke patients using a preliminary version of the interactive VR system, we propose methodologies (using motor features) to diagnose the instant status of human performance, evaluate temporal effects on human performance, and investigate the influence of system components on human performance.; We conducted an experiment (with 50 healthy human subjects) in which participants are exposed to different stereoscopic displays and tracking devices while operating a series of VR tasks requiring motor behavior with different degrees of freedom. Also, participants completed questionnaires in order to measure user perceptions including visual comfort, device usability, presence and system fidelity. We present the results of correlations between “motor behavior” or “human perception” and each system component (display, interaction device and game context). |
| Keyword | Virtual reality; human computer interaction; rehabilitation |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m1596 |
| Rights | Yeh, Shih-Ching |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Yeh-2280 |
| Archival file | uscthesesreloadpub_Volume44/etd-Yeh-2280.pdf |
Description
| Title | Page 1 |
| Full text | MOTOR AND VISUAL PRINCIPLES IN A HUMAN-COMPUTER INTERFACE TRAINING SYSTEM FOR REHABILITATION by Shih-Ching Yeh A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (COMPUTER SCIENCE) December 2008 Copyright 2008 Shih-ChingYeh |
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