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IEICE TRANSACTIONS on Fundamentals

Two-Dimensional Least Squares Lattice Algorithm for Linear Prediction

Takayuki NAKACHI, Katsumi YAMASHITA, Nozomu HAMADA

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Summary :

In this paper, we propose a two-dimensional (2-D) least-squares lattice (LSL) algorithm for the general case of the autoregressive (AR) model with an asymmetric half-plane (AHP) coefficient support. The resulting LSL algorithm gives both order and space recursions for the 2-D deterministic normal equations. The size and shape of the coefficient support region of the proposed lattice filter can be chosen arbitrarily. Furthermore, the ordering of the support signal can be assigned arbitrarily. Finally, computer simulation for modeling a texture image is demonstrated to confirm the proposed model gives rapid convergence.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E80-A No.11 pp.2325-2329
Publication Date
1997/11/25
Publicized
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Type of Manuscript
Category
Digital Signal Processing

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