Development of a real-time eye movement-based computer interface for communication with improved accuracy for disabled people under natural head movements

In recent years, the scarcity of effective communication systems has been an essential issue for disabled people [physically disabled, locomotor disability, and amyotrophic lateral sclerosis (ALS)] who cannot speak, walk, or move their hands. The lives of disabled people depend on others for surviva...

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Bibliographic Details
Published in:Journal of real-time image processing Vol. 20; no. 4; p. 81
Main Authors: Chhimpa, Govind Ram, Kumar, Ajay, Garhwal, Sunita, Dhiraj
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2023
Springer Nature B.V
Subjects:
Accuracy
Algorithms
Amyotrophic lateral sclerosis
Blinking
Calibration
Cameras
Communications systems
Computer Graphics
Computer Science
Disability
Electroencephalography
Eye movements
Graphical user interface
Head movement
Image Processing and Computer Vision
Keyboards
Multimedia Information Systems
Pattern Recognition
People with disabilities
Real time
Signal,Image and Speech Processing
System effectiveness
User interface
Webcams
Disabled people
Calibration
Eye-gaze communication
Mouse control
Video-Oculography (VOG)
Human–computer interaction
ISSN:1861-8200, 1861-8219
Online Access:Get full text
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Summary:In recent years, the scarcity of effective communication systems has been an essential issue for disabled people [physically disabled, locomotor disability, and amyotrophic lateral sclerosis (ALS)] who cannot speak, walk, or move their hands. The lives of disabled people depend on others for survival, so they need assistive technology to live independently. This research paper aims to develop an efficient real-time eye-gaze communication system using a low-cost webcam for disabled persons. This proposed work developed a Video-Oculography (VOG) based system under natural head movements using a 5-point user-specific calibration (algorithmic calibration) approach for eye-tracking and cursor movement. During calibration, some parameters are calculated and used to control the computer with the eyes. Additionally, we designed a graphical user interface (GUI) to examine the performance and fulfill the basic daily needs of disabled individuals. The proposed method enables disabled persons to operate a computer by moving and blinking their eyes, similar to a typical computer user. The overall cost of the developed system is low (Cost < $50, varies based on camera usage) compared to the cost of various existing systems. The proposed system is tested with disabled and non-disabled individuals and has achieved an average blinking accuracy of 97.66%. The designed system has attained an average typing speed of 15 and 20 characters per minute for disabled and non-disabled participants, respectively. On average, the system has achieved a visual angle accuracy of 2.2 degrees for disabled participants and 0.8 degrees for non-disabled participants. The experiment’s outcomes demonstrate that the developed system is robust and accurate.
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ISSN:1861-8200
1861-8219
DOI:10.1007/s11554-023-01336-1