首页|Design and Implementation of a Digital Controller Method Based on Complex EOG Signal Processing for External Devices Input Control
Design and Implementation of a Digital Controller Method Based on Complex EOG Signal Processing for External Devices Input Control
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NETL
NSTL
L & H Scientific Publishing, Llc
The present work reports on a device for the processing of electric signals and the physical interpretation of the outputs. The aim is to execute actions through external devices by analyzing the bioelectric signals from the human eye or electrooculograms (EOGs). More concretely, an EOG digital controller to work as assistive technology for motor disabled people is described. Various pairs of electrodes are used on an individual to capture EOG signals through a two-channel input module. Various gestures are defined. In the processing, the EOG signal is categorized in positive, negative and small values. A finite vector is used to count the sequences or runs of those values. After analyzing the last of those runs and if some proposed conditions are met, then that portion of the signal is marked as a desired pattern. The resulting method was tested in two applications. In the first application, the system controlled functions of a computer mouse and, in the second, keyboard functions were controlled through the proposed device. Additionally, a 'robust' version of the system is presented. This version implements infrared sensor technology. With this technology, the number of patterns or gestures of the eye under recognition was increased. (c) 2025 L&H Scientific Publishing, LLC. All rights reserved.
NETL
NSTL
L & H Scientific Publishing, Llc
