NDLI: Mixed multidimensional filters

Content Provider	IEEE Xplore Digital Library
Author	Knudsen, K.S. Bruton, L.T.
Copyright Year	1991
Description	Author affiliation: Calgary Univ., Alta., Canada (Knudsen, K.S.; Bruton, L.T.)
Abstract	It is shown that the basic idea to combine discrete transforms and linear difference equation filtering in the MD (multidimensional) case may be extended beyond the DFT (discrete Fourier transform) to include other types of transforms, such as the DCT (discrete cosine transform) and DHT (discrete Hartley transform). Applications of such MixeD filters have been successfully pursued for the case of 3D spatially planar signals using cone transfer functions. The computational efficiency of these MixeD filters has been confirmed elsewhere for the DFT and can be shown to carry over, by similar reasoning, to the DHT and DCT. It is noted that MixeD filter LDEs (linear difference equations) are of lower dimensionality (M-P) than for the MD LDE case, thereby simplifying design approximation (and associated stability considerations in the case of IIR (infinite impulse response) LDEs).<>
Starting Page	80
Ending Page	83
File Size	518391
Page Count	4
File Format	PDF
ISBN	0780300815
DOI	10.1109/MWSCAS.1990.140657
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-08-12
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multidimensional systems Discrete Fourier transforms Discrete cosine transforms Difference equations Nonlinear filters Fourier transforms IIR filters Discrete transforms Filtering Transfer functions
Content Type	Text
Resource Type	Article

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