1. Department of Computer Science, National Yang Ming Chiao Tung University (NYCU), Hsinchu, Taiwan
2. National Institute of Standards and Technology (NIST), MD, USA
3. CableLabs, Louisville, CO, USA
4. Department of Mathematics, Eastern Washington University, Cheney, WA, USA
5. Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan