Video Communication Winter 2013 Homework Assignment #2

1. Video CommunicationWinter 2013 Homework Assignment #2 M023010094 Chen yen Ping E.E Nsysu

2. Outline • Bit Error Rate: • Add different bit error rate(1%, 5%, 10%, 15%) • Implement 4-bit IGS code • LSB is zero • LSB is random • Design LSB by yourself • Error correction • Protect and recover your bit(Hamming code)

3. Flow Chart

4. Comparison BER 5% BER 15%

5. Comparison(Cont.) • LSB is zero ,BER1% Original

6. Comparison • LSB is random,BER5% • LSB is design,BER5%

7. Hamming Code • Original • LSB is zero, BER1 %

8. The method of design 4bits: I think that the sum of four bits are range from zero to fifteen , so I guess the middle figure, 7. The results may not get lots of mistakes that compare to the original figure.

9. Hamming Code(Cont.) • Original • LSB is design, BER1 %

10. Hamming Code(Cont.) • Original • LSB is design, BER15 %

11. Comparison

12. Comparison(Hamming Code)

13. Conclusion As the figure,the last 4 digits that all show zeros are the best in the PSNR and the worst is show random. I figure that I didn’t take the sum into account so that it’s not only has the error seven.

14. Thank you