1. Quantizer for Wyner-Ziv System Application 指 導 教 授：楊 士 萱 報 告 學 生：李 桐 照

2. Outline  Distributed Video Coding Introduction  Quantizer Design  Simulation Result  Future work

3. Distributed Video Coding Introduction

4. Quantizer Design 1/4 Gaussian Scalar Asymmetric Case

5. Quantizer Design 2/4 Experimental Result

6. Quantizer Design 3/4 Idea: Side information helps distinguish source values

7. Quantizer Design 4/4 Design of optimal quantizers for distributed source coding Rebollo-Monedero, D.; Rui Zhang; Girod, B.; Data Compression Conference, 2003. Proceedings. DCC 2003 25-27 March 2003 Data Compression Conference, 2003. Proceedings. DCC 2003 New Lloyd Algorithm

8. Simulation Result 1/5

9. Simulation Result 2/5

10. Simulation Result 3/5

11. Simulation Result 4/5

12. Simulation Result 5/5  Conclusion:Wyner-Ziv SPIHT 碼率越接近 Key Frame SPIHT 碼率時, 則採用 Wyner-Ziv System 的效益就越高

13. Future work  2006/3/6~2006/3/19 Implementation of Quantizer