あいとーくLite app for iPhone and iPad

This application has the accurate and the high-precision blink determination system to detect letters and put them into sound for physically disabled who cannot communicate with voice.

A user chooses a consonant in "column" first and a vowel in "row" next from the character table of Japanese.After choosing a letter, the frame cursor is moving along “Command” items on the top of the screen. (Voiced / Semi-voiced sound symbols, Delete a letter, Select, Sound, Delete All) If a user blinks when the frame cursor is on Select, the letter is chosen. By continuing this operation, a user can create a sentence as long as he/she needs. Then the voice sound comes out when a user choose Sound button.

A user can customize the following settings of the applications.
1) To show the picture of eyes (On or Off)
2) Sensitivity of detecting blinks (low 0 to high 100)
3) Speed of moving the frame cursor on the character table of Japanese (slow 0 to fast 100)
4) Speed of moving the frame cursor on Command items (slow 0 to fast 100)

We use afterimages to determine weak and fast blinks. By the method of using the afterimage, the number of the past frames to compare increases and we can capture changes with high accuracy. As a result, we can quantify the changes of series of movements "eye-opening - eye-closing - eye-opening". And it is possible to determine the situation of eyes as short blink, long blink, closing eyes continuously, except the malfunction due to fine movement of eyes.