Labels:text | screenshot | diagram | line | number | parallel OCR: UP (a) a ad da dd aaa ada add daa dad dda ddd VP (b) dla daa dad idda ddd daaa daad dada dadd VP (C) dc dda ddd doda dddd Figure 4: Different disjoint covers formed from the WPT binary tree (Figure 3). yield different wavelet packet bases. (a) A subband basis; (b) an orthonormal basis subset; (c) a basis which is the opposite of the wavelet basis (better frequency localization at bigber frequencies).