R&D of the Japanese-Language Input Method using Life Log on an Eye-Controlled Communication Device for Users with Disabilities

本研究的目的是使不能说话的人能够顺畅地进行交流。在过去的研究中，我们提出了三种使用便携式眼控通信设备的日语输入方法，适用于患有脑瘫或肌萎缩侧索硬化症（ALS）的用户。然而，这些方法需要近30秒的时间来循环一个日语字符。在本研究中，我们提出了一种利用邻近字符的线索和积累的经验来估计输入词的方法。此外，为了提高预测的精度，我们使用了基于同义词词典的词与词之间的连接。仿真实验结果表明，该方法通过少量的输入字母实现了精确的单词转换。

We aim to enable the smooth communication of persons physically unable to speak.In our past study, we proposed three Japanese-language input methods using a portable eye-controlled communication device for users with conditions such as cerebral palsy or amyotrophic lateral sclerosis (ALS). However, these methods require nearly 30 seconds to cycle through one Japanese character. In this research, we suggest a method to estimate the input word using the clues of nearby characters and accumulated experience. In addition, to raise the precision of the prediction, we use the connection between words based on a thesaurus. We have realized precise word conversion via a few input letters, as proved by the result of the simulation experiment.