
For example, one family of biorthogonal wavelets, known as the Cohen–
Daubechies–Feauveau 9/7 wavelets, is used in the FBI fingerprint compression
standard and in the JPEG 2000 image compression standard as well. Table 7.2
shows their coefficients and Fig. 7.9 shows their scaling functions and wavelets.
7.4.6 Lifting Schemes
7.4.6.1 Biorthogonal Wavelet Design
There is another method of designing biorthogonal wavelets, called lifting
schemes [18, 20]. Using lifting, new sets of compactly supported biorthogonal
TABLE 7.2 Cohen–Daubechies–Feauveau 9/7 wavelets
nh
0
(n) g
0
(n)
0 0.852698679 0.788485616
1,1 0.377402855 0.418092273
2,2 0.1106 24404 0.040689417 ...