A cordless mouse with an added reed switch is used as a wireless data logger to record every time the wheel of a trolley completes a revolution. The limitations of the system in terms of maximum clicking rate and spatial resolution are considered and data obtained from the descent of a trolley down a ramp at various different angles is analysed in…

The number of visually impaired people is increasing year by year. Although attention has been given to the needs of people with disabilities, most of the discussion has focused on social welfare, while talk about assistive technology for people with disabilities is rare. The blind need training courses for reconstruction and rehabilitation.…

Video-based eye tracking techniques have become increasingly attractive in many research fields, such as visual perception and human-computer interface design. The technique primarily relies on the positional difference between the center of the eye's pupil and the first-surface reflection at the cornea, the corneal reflection (CR). This…