1. Kasetsart University, Sriracha Campus,Faculty of Engineering at Sriracha,Chonburi,Thailand
2. National Electronics and Computer Technology Center, The National Science and Technology Development Agency,Pathumthani,Thailand
3. King Mongkut's University of Technology North Bangkok,Faculty of Engineering,Department of Electrical and Computer Engineering,Bangkok,Thailand
4. The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut's University of Technology North Bangkok,Bangkok,Thailand