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A Comprehensive Design Evaluation for SPIHT Coding 台北科技大學資工所指導教授:楊士萱學生:廖武傑 2003/06/05
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Outline Transforms Transforms Energy distribution (DWT vs Spatial domain) Energy distribution (DWT vs Spatial domain) Arithmetic coding for SPIHT Arithmetic coding for SPIHT Future work Future work
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Transforms Integer-to-integer transform : Integer-to-integer transform : Real-to-real transform : Real-to-real transform : Dot products between the two filter masks and the signal. Dot products between the two filter masks and the signal.
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Transforms Integer-to-integer transform : Integer-to-integer transform : 5/3 9/7-M
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Transforms Integer-to-integer transform : Integer-to-integer transform : 5/11-A 5/11-C
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Transforms Integer-to-integer transform : Integer-to-integer transform : 13/7-T 13/7-C
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Transforms Integer-to-integer transform : Integer-to-integer transform : 9/7-F
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Transforms Integer-to-integer transform : Integer-to-integer transform : 9/7-F
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Transforms Real-to-real (orthogonal)transform : Real-to-real (orthogonal)transform : Haar (Daubechies 2-tap ) Daubechies 4-tapDaubechies 6-tap index 00.7071060.4829630.332671 10.7071060.8365160.806892 20.2241440.459878 3-0.129410-0.135011 4-0.085441 50.035226
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Transforms Real-to-real (biorthogonal)transform : Real-to-real (biorthogonal)transform : 9/7 index 00.8526990.788486 1,-10.3774020.418092 2,-2-0.110624-0.040689 3,-3-0.023849-0.064539 4,-40.037828 10/18 index 0,-10.7589080.623359 1,-20.0767900.163369 2,-3-0.157526-0.085661 3,-40.000082-0.013765 4,-50.0288520.308337 5,-6-0.002528 6,-7-0.009452 7,-8-0.000002 8,-90.000095
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Computation Time required RWTIWT D2D4D69/710/1 8 5/39/7-F9/7- M 5/11 A 5/11- C 13/7 C 13/7- T 0.360.610.922.514.201.001.921.191.63 1.44 Relative ratio, 5/3 as 1
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Outline Transforms Transforms Energy distribution (DWT vs Spatial domain) Energy distribution (DWT vs Spatial domain) Arithmetic coding for SPIHT Arithmetic coding for SPIHT Future work Future work
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Testing data lena baboon pepper F16
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Energy of LL subband( DWT domain coefficients) RWTIWT D2D4D69/710/185/39/7-F9/7-M5/11A5/11-C13/7C13/7-T Lena97.7997.3797.2897.9897.4278.2796.1282.1478.0977.7481.8882.10 Baboo n 98.8598.9698.9099.1898.6888.6998.4091.2188.5888.3991.6991.64 F1698.7798.7698.7498.9898.3388.6598.0691.1088.6088.4590.9190.10 Pepper94.7394.7294.0895.7194.2768.5392.1473.4668.7168.6272.5473.10 “ lena ”, 5-level decomposition, %
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Energy of LL subband( Spatial domain pixels) RWTIWT D2D4D69/710/185/39/7-F9/7-M5/11A5/11-C13/7C13/7-T Lena94.5994.3895.5095.1695.6695.5095.7296.4195.5795.8096.1795.90 Baboo n 94.1594.3694.6294.6794.6495.3295.2095.8695.22 95.4895.33 F1696.5396.6996.9896.5796.9897.0697.0197.5397.0397.0897.1397.07 Pepper89.8294.8396.6495.6197.9494.6296.6196.5196.4697.1296.48 “ lena ”, 5-level decomposition, %
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Compression performance(PSNR,dB) 5/39/7-F9/7-M5/11A5/11- C 13/7C13/7- T 10/189/7HaarD4D6 1/6429.7130.2529.7829.8429.7929.9429.9030.6830.5327.5328.9729.38 1/3232.6033.2432.8732.8132.8833.0433.0733.7533.5830.2131.8532.35 1/1635.7536.1735.9335.9235.8936.1436.1336.8636.7433.5035.2435.75 1/838.8738.8438.8038.8938.8039.0339.0039.9639.9237.4738.9239.26 5/39/7-F9/7-M5/11A5/11- C 13/7C13/7- T 10/189/7HaarD4D6 1/6420.9621.4220.8520.9220.8721.0520.9821.6021.4920.9721.2821.37 1/3222.2522.8022.1822.2322.1722.4022.3522.9722.8822.1422.5422.64 1/1624.2225.0724.2824.2524.2324.4924.4725.1325.1124.60 24.79 1/827.7128.3727.8027.7927.7628.0227.9828.6128.6227.97 28.21
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Compression performance(PSNR dB) 5/39/7-F9/7-M5/11A5/11- C 13/7C13/7- T 10/189/7HaarD4D6 1/6428.3128.9528.4928.4128.3928.5628.5729.2629.2826.7827.9728.18 1/3231.4532.1431.8231.6631.7231.8531.8832.5632.5129.5730.9531.40 1/1635.2735.8535.7535.5535.6135.8435.8736.4536.4233.4534.7535.27 1/839.8439.6639.8239.8639.7439.99 40.92 38.4239.6139.59 5/39/7-F9/7-M5/11A5/11- C 13/7C13/7- T 10/189/7HaarD4D6 1/6428.3128.7728.3028.3628.3028.4428.4329.0129.0225.7827.2227.56 1/3230.6831.4231.0730.8330.8631.1931.1531.6731.7428.7630.2030.46 1/1633.0933.5133.1633.0732.9833.3333.3033.7833.8031.8132.9533.06 1/835.3835.8435.4835.3435.1835.6935.6636.2136.1835.0135.7135.77
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Images recovered from lowest frequency component lena baboon pepper F16
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Outline Transforms Transforms Energy distribution (DWT vs Spatial domain) Energy distribution (DWT vs Spatial domain) Arithmetic coding for SPIHT Arithmetic coding for SPIHT Future work Future work
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Arithmetic coding for SPIHT
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1 1 1 0 1 1 0 0 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 ‧‧‧ Symbol 1 Symbol 3 。。。 Symbol 2 Bit stream from SPIHT encoded
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Outline Transforms Transforms Energy distribution (DWT vs Spatial domain) Energy distribution (DWT vs Spatial domain) Arithmetic coding for SPIHT Arithmetic coding for SPIHT Future work Future work
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Future work Implementation of Witten’s paper. Implementation of Witten’s paper. Improvement of arithmetic coding for SPIHT. Improvement of arithmetic coding for SPIHT.
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