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2-D FIR Filter Design Using the NDFT

  • Sonali Bagchi
  • Sanjit K. Mitra
Part of the The Springer International Series in Engineering and Computer Science book series (SECS, volume 463)

Abstract

Two-dimensional (2-D) digital filters find applications in diverse areas such as image processing and coding, robotics and computer vision, seismology, sonar, radar and astronomy. In applications such as image processing, preservation of the phase information is important [Huang et al., 1975]. In this respect, FIR filters offer a distinct advantage over IIR filters, since they can easily attain linear-phase or zero-phase characteristics. Besides, they are guaranteed to be stable. In this chapter, we use the 2-D NDFT, defined in Chapter 2 (Section 2.5), to design 2-D FIR filters by nonuniform frequency sampling of the specified frequency response.

Keywords

Contour Plot Amplitude Response Frequency Transformation Filter Design Frequency Plane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • Sonali Bagchi
    • 1
  • Sanjit K. Mitra
    • 2
  1. 1.Lucent TechnologiesUSA
  2. 2.University of CaliforniaSanta BarbaraUSA

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