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Lifting step.
Rounding is required at each lifting step before the summation, i.e. eight times in total.
Calculation in a lifting step starts after the calculation results of the previous have been obtained.
As a lifting step needs to wait for the results of calculations from the previous lifting step, many sequential lifting steps incur a long delay between input and output.
Figure 4 General two-dimensional signal flow for 5/3 lifting: (a - d) first, second, third, a - dourth lifirst second
The second lifting step implemented in Fig. 11c is according to Fig. 10b and has M + 3A steps.
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The formulation is connected to the optimization of lifting steps.
Furthermore, we re-factor the channel representation into lifting steps and then the invertibility is guaranteed.
Factorization of classical wavelet filter into lifting steps reduces the computational complexity up to 50%.
Every reconstructible filter bank can be expressed in terms of lifting steps in general.
The original order of lifting steps for each dimension is also maintained in this structure.
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