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      Polyphase adaptive filter banks for subband decomposition

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      Author
      Gerek, Ömer N.
      Çetin, A. Enis
      Date
      1998-05-06
      Source Title
      Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, ISCAS '98
      Print ISSN
      0271-4310
      Publisher
      IEEE
      Pages
      V-480 - V-483
      Language
      English
      Type
      Conference Paper
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      Abstract
      Subband decomposition is widely used in signal processing applications including image and speech compression. In most practical cases, the goal is to obtain subband signals that are suitable for data compression. In this paper, we present Perfect Reconstruction (PR) polyphase filter bank structures in which the filters adapt to the changing input conditions. This leads to higher compression results for images containing sharp edges, text, and subtitles.
      Keywords
      Image compression
      Perfect reconstruction (PR) polyphase filters
      Subband decomposition
      Adaptive filtering
      Permalink
      http://hdl.handle.net/11693/27679
      Published Version (Please cite this version)
      https://doi.org/10.1109/ISCAS.1998.694537
      Collections
      • Department of Computer Engineering 1368
      • Department of Electrical and Electronics Engineering 3524
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