期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2018
卷号：10
期号：1
页码：170-185
DOI：10.15676/ijeei.2018.10.1.12
出版社：School of Electrical Engineering and Informatics
摘要：EOG is a biosignal generated by eye activities. This research develops the use ofEOG signals in a new way. EOG was used to control a robot manipulator that reaches for atarget in 3-D area. Five properties of EOG signal were used, which were: threshold, polarityof signal, integral of absolute EOG signals, peak and period of a wave. The use of theseproperties allowed the apparatus to detect the EOG signals, estimate gaze distance and distinguishbetween gaze motion, voluntary blinks and involuntary blinks. Targets were recordedby two cameras that provided front and top views. The images were viewed on amonitor one at a time with the active camera selected by voluntary blinking. EOG signalswere converted to pixel coordinates using an affine transform. The pixel coordinates werethen transformed into robot coordinates using the correlation between camera position, robotposition and monitor display. Robot coordinates of a target became end-effector position andjoint angles were derived through inverse kinematics. The result shows that this system couldreach target with approximately 90% accuracy. This system successfully improved the flexibilityof controlling a robot in three dimensions.
关键词：biosignal; electrooculography; three dimensions; robot manipulator; camera
