摘要(英) |
Nowadays computer technology is prosperously developed and people enjoy the convenience brought by computers. However, some of the handicapped cannot use their hands to control computers but they still have the need to use them. Although we can create special use computers for these handicapped, they will not be able to afford the high costs because of the small markets. As a result, my research is to develop an eye-writing system of keyboard and mouse in order to help the handicapped be able to use computers.
In this study, I measure the physiological signals by using electro-oculography (EOG). At the first stage, I use a differential amplifier, filters, and a voltage shift control circuit to do the preliminary processing. Then, the signals are transmitted to the microprocessor to be analytic and recognized. Third, the microprocessor changes the recognized results into keyboard/mouse signals and transmits the signals to the PS/2 port of computers. Finally, the EOG signals can take place the manual operation and we can communicate with computers by using EOG signals to control keyboard and mouse.
The sensitivity of the eye-writing system of keyboard is 77.92% and the specificity is 75.27%; the sensitivity of the eye-writing system of mouse is 96.78% and the specificity is 89.39%.
The advantages of this system are high adaptability (alternatively controlling keyboard or mouse), easy to carry, and no need of other interface (using PS/2 port to communicate with computers). In the future work, we can develop other systems to control other objects such as televisions, wheelchairs, and air conditioner by using the similar algorithms. |
參考文獻 |
[1] E. P. Widmaier, H. Raff, K. T. Strang, and E. Widmaier, 人體生理學, 台灣台北:合記圖書出版社, 2005, p.p.222-230
[2] 林茂村, 解剖生理學, 台灣台北:徐氏基金會出版, 1991, P.P308-309
[3] 郭怡斌, 應用眼電訊號控制機械式滑鼠, 南台科技大學電機工程研究所碩士論文, 陳世中老師指導, 2005
[4] 薛智謙, 英文字母眼寫系統之可行性研究, 中央大學電機工程學系碩士論文, 蔡章仁老師指導, 2005
[5] 李重寬, 注音符號眼寫系統之可行性研究, 中央大學電機工程學系碩士論文, 蔡章仁老師指導, 2005
[6] 王敏智, 眼動符號表達系統之可行性研究, 中央大學電機工程學系碩士論文, 蔡章仁老師指導, 2004
[7] 蔡金源, 以眼球控制之殘障者人機介面系統:紅外線視動滑鼠, 台灣大學電機工程學研究所碩士論文, 陳志宏、曹恆偉老師指導, 1997
[8] 高為澎, 身心障礙者人機介面:紅外線頭控/眨眼滑鼠系統之研製, 台灣大學電機工程學研究所碩士論文, 陳志宏老師指導, 1999
[9] 徐聖棟, 建立紅外線反射式眼動滑鼠, 成功大學醫學工程研究所碩士論文”, 陳天送老師指導, 2000
[10] 陳晏輝, 利用眼球運動發展肢體障礙者之人機界面, 成功大學醫學工程研究所碩士論文, 陳天送、蔡子同老師指導, 1998
[11] 謝文元, 殘障者人機介面系統:紅外線眼控電腦滑鼠系統之研製, 台灣大學電機工程學研究所, 陳志宏老師指導, 1999
[12] 劉文義, 以眼球電訊號控制之殘障都人機介設計, 台灣大學電機工程學研究所, 陳志宏老師指導, 1996
[13] Computer-Engineering.org, http://www.computer-engineering.org/
[14] R. Barea, L. Boquete, M. Mazo, E. Lopez, “System for Assisted Mobility Using Movements Based on Electrooculography”, IEEE transactions on neural systems and rehabilitation engineering, vol. 10, no. 4, December 2002, pp. 209-218.
[15] 林昀, 電子學(中), 鼎茂圖書, 2003, pp. 11-52.
[16] 德州儀器, http://www.ti.com.tw/
[17] S. R. Choudhury, S. Venkataramanan, H. B. Nemade, J. S. Sahambi, “Design and Development of a Novel EOG Biopotential Amplifier”, IJBEM, vol. 7, no. 1, 2005, pp. 271-274.
[18] Microchip, http://www.microchip.com/
[19] 雄鐸科技, http://www.sdec.com.tw/
[20] 孕龍科技, http://www.zeroplus.com.tw/
[21] Steven W. Smith, Digital signal processing, http://www.DSPguide.com |