2-D Variable FIR Filters Using 3-D Prototype Filters

Toshiyuki YOSHIDA  Akinori NISHIHARA  Nobuo FUJII  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E77-A   No.9   pp.1568-1572
Publication Date: 1994/09/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Parallel/Multidimensional Signal Processing
digital signal processing,  multidimensional signal processing,  linear FIR digital filters and variable filters,  

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This paper discusses a new design method for 2-D variable FIR digital filters, which is an extension of our previous work for 1-D case. The method uses a 3-D prototype FIR filter whose cross-sections correspond to the desired characteristics of 2-D variable FIR filters. A 2-D variable-angle FIR fan filter is given as a design example.