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視訊通訊 homework 2 林葦 M023010042
Implement 4-bit IGS code LSB is zero LSB is random Design LSB by myself Error correction Hamming code results outline
LSB is zero original LSB is zero, PSNR = 31.9
LSB is random original LSB is random, PSNR = 27.4
Design LSB by myself
original mine, PSNR = 32.3
Bit error rate 1% original LSB is zero, PSNR = 24.1
Bit error rate 15% original LSB is zero, PSNR = 13.4
Hamming code : p1=d1 d2 d3 p2=d1 d3 d4 p3=d2 d3 d4 Error correction d1d2d3d4p1p2p3 ++ + + + +
Bit error rate 1% PSNR=24.1 PSNR = 27.9
Bit error rate 5% PSNR=17.8 PSNR = 20.3
Bit error rate 15% PSNR=13.4 PSNR = 13.9
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