Handout6

# Handout6 - 5 Single Stage Decomposition 6 3 3-Stage...

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Course 18.327 and 1.130 Wavelets and Filter Banks Matlab wavelet toolbox. Matlab Example 3 1. 1-D signal analysis MATLAB M-file 2 1

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Daubechies 9/7 pair: zeros of H 0 and F 0 >> example3 Zeros of H0(z) ans = 2.0311 + 1.7390i 2.0311 - 1.7390i -1.0001 + 0.0001i -1.0001 - 0.0001i -0.9999 + 0.0001i -0.9999 - 0.0001i 0.2841 + 0.2432i 0.2841 - 0.2432i Zeros of F0(z) ans = 3.0407 -1.0010 + 0.0010i -1.0010 - 0.0010i -0.9990 + 0.0010i -0.9990 - 0.0010i 0.3289 3 Complete Set of Daub 9/7 Filters 4 2
Frequency Responses of Daub 9/7

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Unformatted text preview: 5 Single Stage Decomposition 6 3 3-Stage Decomposition 7 3-Stage Decomposition 8 4 Individually Reconstructed Branches 9 Reconstruction Error ---upcoef 10 5 Reconstruction Error ---wrcoef 11 Reconstruction Error ---waverec 12 6 Matlab Example 4 1. 2-D image analysis MATLAB M-file 13 Original Image 14 7 Wavelet Decomposition 15 Single Stage Decomposition 16 8 Two-Stage Decomposition 17 Reconstructed Branches 18 9 Global Hard Thresholding 19 Variable Hard Thresholding 20 10...
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## This note was uploaded on 12/04/2011 for the course ESD 18.327 taught by Professor Gilbertstrang during the Spring '03 term at MIT.

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Handout6 - 5 Single Stage Decomposition 6 3 3-Stage...

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