A Class of Near Shift-Invariant and Orientation-Selective Transform Based on Delay-Less Oversampled Even-Stacked Cosine-Modulated Filter Banks

• KYOCHI Seisuke

  Department of Electronics and Electrical Engineering, Keio University

• IKEHARA Masaaki

  Department of Electronics and Electrical Engineering, Keio University

Abstract

The purpose of this study is to show a class of near shift-invariant and orientation-selective transform based on even-stacked cosine-modulated filter banks (ECFBs) which originally have been proposed by Lin and Vaidyanathan. It is well-known that ECFBs can be designed by the modulation of just one prototype filter and guarantee the linear phase property. We extend this class to delay-less oversampled ECFB and show two additional attractive features; high directional selectivity and near shift-invariant property. In this paper, these properties are verified by theoretical analysis and demonstrations.

Journal

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E93-A (4), 724-733, 2010

  The Institute of Electronics, Information and Communication Engineers

Keywords

• even-stacked cosine-modulated filter bank
• overcomplete transform
• directionality
• near shift-invariance

Details

• CRID: 1390282681288310784
• NII Article ID: 10026863789
• NII Book ID: AA10826239
• DOI: 10.1587/transfun.e93.a.724
• ISSN: 17451337
• ISSN: 09168508
• Web Site: http://www.jstage.jst.go.jp/article/transfun/E93.A/4/E93.A_4_724/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed