An Efficient Constrained Learning Algorithm for Stable 2D IIR Filter Factorization

<table>Amplitude spectrum of (a) original filter. (b) Filter obtained with gradient descent. (c) Filter obtained with CLA. (d) Filter obtained with the proposed method.</table>

Advances in Artificial Neural Systems

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Figure 2

Figure 2: An Efficient Constrained Learning Algorithm for Stable 2D IIR Filter Factorization 