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OCR: I/P 0 aa da aaa aad ada add daa dad dda ddd aaaa aaad aada aadd adaa adad adda addd daaa daad dada dadd ddaa ddad ddda dddd Figure 3: The wavelet packet transform viewed as a complete binary graph. Bach "a" and "d" in each sequence represents the filtering operations performed to yield the particular subspace of the original signal. The bold lines represent the disjoint cover known as the "wavelet basis,"