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視訊通訊 project2

視訊通訊 project2. 曾仁甫. 大綱. Algorithm Design LSB by yourself Error correction Result Conclusion. Algorithm. Error correction. IGS. Transmission error. I mage. 補 滿 LSB. Output image. Design LSB by yourself. IGS:1 0 1 0.

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視訊通訊 project2

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  1. 視訊通訊project2 曾仁甫

  2. 大綱 • Algorithm • Design LSB by yourself • Error correction • Result • Conclusion

  3. Algorithm Error correction IGS Transmission error Image 補滿LSB Output image

  4. Design LSB by yourself IGS:1 0 1 0 1 0 1 0 0 xor 1xor 0 1 xor 1 xor 0 1 xor 0 xor 0 1xor 0 xor 1

  5. Error correction IGS:1 0 1 0 01 0 01 0 1 霍夫曼編碼後接至IGS後面 1010 00 0xor 1 xor 0 = 1

  6. RESULT Zero PSNR = 31.89192

  7. RESULT Random PSNR = 30.55128

  8. RESULT Myself PSNR = 26.3056

  9. RESULT PSNR bit error rate

  10. RESULT Erorr bit rate 1% PSNR = 25.83181

  11. RESULT Erorr bit rate 5% PSNR = 21.66792

  12. RESULT Erorr bit rate 10% PSNR = 18.98761

  13. RESULT Erorr bit rate 15% PSNR = 17.25597

  14. Conclusion • bit error rate 與PSNR 成反比 • Compression ratio = 0.758048

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