Academic
Publications
Design of two-dimensional recursive filters by interpolation

Design of two-dimensional recursive filters by interpolation,10.1109/TCS.1977.1084344,IEEE Transactions on Circuits and Systems,Hyokang Chang,J. K. AG

Design of two-dimensional recursive filters by interpolation   (Citations: 21)
BibTex | RIS | RefWorks Download
A technique for rotating the frequency responses of separable filters is developed. In this technique transfer functions having rational powers ofzare introduced and realized by input/output signal array interpolations. Several applications of this technique to designing two-dimensional recursive filters are presented. Two- and multidimensional manipulations are performed by a series of one-dimensional manipulations.
Journal: IEEE Transactions on Circuits and Systems , vol. 24, no. 6, pp. 281-291, 1977
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
    • ...A major reference on this topic is the paper of Chang and Aggarwal [11], where a technique for rotating the frequency response of separable filters is developed...
    • ...12 , ωω the rotated ones (see [11]). The spatial orientation is specified by an angle ϕ with respect to 1 ω -axis and is therefore defined by the following 1D to 2D spatial frequency transformation in the frequency response 12 H ωω : ωω ϕ ω ϕ 12 cos sin . By substitution, we obtain the...
    • ...z zz ϕ ϕ →⋅ . In [11], the frequency transformation...

    Radu Mateiet al. Orientation-selective 2D recursive filter design based on frequency tr...

    • ...Before discussing the 3-D case, we will look at the 2-D case [4]...

    Soo-Chang Peiet al. Tracking moving objects in image sequences using 1-D trajectory filter

    • ... this gap, a new class of two-dimensional "velocity-selecting/rejecting filters" which passes or stops a particular event in a seismic signal is proposed in Section 2. A design approach on the basis of IIR of such a filter is described in Section 3. In order to design a velocity-selecting/rejecting filte r, the frequency transformation technique, including rational powers of zl and z2, reported in the survey paper of Chang and Aggarwal ...
    • ...It can be seen that the main energy distribution in Fig. 2 is oriented in the same direction as the magnitude response of the rotated LP filter, as shown in Fig. 3, proposed by Chang and Aggarwal [9]...
    • ...The technique for rotating the axes of separable filters discussed by Chang and Aggarwal [9] was used to produce the velocity-selecting-and-rejecting filters from prototype LP and HP filters, respectively...
    • ...In the actual signal processing, interpolations of the input/output signal array can be achieved by the technique given in [9]...

    Boubacar Sakoet al. Design of recursive digital filters for the selection or rejection of ...

Sort by: