Krittapat Bannajak [ Electhcal Engineering Department, Faculty of Engineering, Chiang Mai University Graduated School, Chiang Mai University Chiang Mai, Thailand ]
Nipon Theera-Umpon [ Electhcal Engineering Department, Faculty of Engineering, Chiang Mai University Graduated School, Chiang Mai University Chiang Mai, Thailand ]
Corresponding Author
Sansanee Auephanwiriyakul [ Computer Engineering Department, Faculty of Engineering, Chiang Mai University Biomedical Engineering Institute, Chiang Mai University Chiang Mai, Thailand ]