A human-computer interface (HCI) system designed for use

by people with severe disabilities is presented. People that

are severely paralyzed or afflicted with diseases such as

ALS (Lou Gehrig’s disease) or multiple sclerosis are unable

to move or control any parts of their bodies except for

their eyes. The system presented here detects the user’s eye

blinks and analyzes the pattern and duration of the blinks,

using them to provide input to the computer in the form of

a mouse click.