1. College of Information and Distribution Science, National Taichung University of Science and Technology, Taichung 40401, Taiwan
2. Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 106, Taiwan
3. Graduate Institute of Color and Illumination Technology, National Taiwan University of Science & Technology, Taipei 10607, Taiwan
4. Department of Electronic Engineering, National Yunlin University of Science & Technology, Yunlin 64002, Taiwan
5. Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan 71150, Taiwan