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Multiprocessor Implementation of 2-D Denominator-Separable Digital Filters Using Block Processing

Tsuyosi TAKEBE, Masatoshi MURAKAMI, Koji HATANAKA, Shinya KOBAYASHI

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Summary :

This paper treats the problem of realizing high speed 2-D denominator separable digital filters. Partitioning a 2-D data plane into square blocks, filtering proceeds block by block sequentially. A fast intra-block parallel processing method was developed using block state space realization, which allows simultaneous computation of all the next block states and the outputs of one block. As the block state matrix of the filter has high sparsity, the rows and columns are interchanged respectively to reduce the matrix size. The filter is implemented by a multiprocessor system, where for each matrix's row one processor is assigned to perform the row-column vector multiplication. All processors wirk in synchronized fashion. Number of processors of this implementation are equal to the number of rows of the reduced state matrix and throughput is raised with block lengths.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.7 pp.846-851
Publication Date
1992/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Multidimensional Signal Processing)
Category
Design and Implementation of Multidimensional Digital Filters

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