Combinatorial optimization: algorithms and complexity
Combinatorial optimization: algorithms and complexity
Linear optimization and extensions: theory and algorithms
Linear optimization and extensions: theory and algorithms
Multidimensional Digital Signal Processing
Multidimensional Digital Signal Processing
Two-channel parallelogram QMF banks using 2-D NSHP digital all-pass filters
IEEE Transactions on Circuits and Systems Part I: Regular Papers - Special section on 2009 IEEE custom integrated circuits conference
Eigenfilter design of 1-D and 2-D IIR digital all-pass filters
IEEE Transactions on Signal Processing
Minimax design of two-channel nonuniform-division filterbanks using IIR allpass filters
IEEE Transactions on Signal Processing
Characteristics of minimax FIR filters for video interpolation/decimation
IEEE Transactions on Circuits and Systems for Video Technology
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Two-dimensional (2-D) interpolation/decimation digital filters are widely used for sampling rate conversion. A general structure consisting of a 2-D recursive digital allpass filter (DAF) and a 2-D pure delay block is presented for designing 2-D recursive interpolation/decimation filters. We utilize a 2-D DAF with symmetric half-plane (SHP) support for its filter coefficients to comply with the symmetry possessed by 2-D interpolation/decimation filters. The structure also possesses a preferable doubly complementary half-band (DC-HB) property that reduces the number of required independent coefficients for designing 2-D interpolation/decimation filters. We appropriately formulate the design problem to obtain a simple linear optimization problem that minimizes the phase error of the 2-D recursive SHP DAF in the pth norm (L"p) sense. Simulation results are provided for illustration and comparison.