Design of nonseparable 2-D linear phase filter banks via shuffling operations

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Design of nonseparable 2-D linear phase filter banks via shuffling operations

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A new approach is proposed for the design of nonseparable linear phase PR filter banks. The design is based on first finding a suitable lowpass filter, while the remaining three filters are obtained through the use of signed shuffling operations on the coefficients of that filter. This leads to a set of filters that use the same coefficients in different shift positions and with different signs, allowing very efficient implementation of the filter bank. All filter bank requirements such as orthogonality, regularity, as well as criteria such as maximisation of coding gain, are then all imposed on the coefficients of the lowpass section.

Inspec keywords: image coding; low-pass filters; filtering and prediction theory; image reconstruction

Other keywords: regularity; orthogonality; nonseparable 2D linear phase filter banks design; perfect reconstruction filter banks design; filter coefficients; nonseparable linear phase PR filter banks; sub band image coding; shuffling operations; coding gain maximisation; shift positions; lowpass filter

Subjects: Pattern recognition; Codes; Information theory; Optical information, image and video signal processing

References

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      • P.P. Vaidyanathan . Recent development multidimensional filter banks. Proc. IEE , 55 - 93
    2. 2)
      • M. Vetterli . A theory of multirate filter banks. IEEE Trans. , 356 - 372
    3. 3)
      • A.N. Akansu , R.A. Haddad . (1992) Multiresolution signal decomposition.
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