Novel JPEG 2000 Compliant DWT and IWT VLSI Implementations

  • Authors:
  • Maurizio Martina;Guido Masera;Gianluca Piccinini;Maurizio Zamboni

  • Affiliations:
  • Dipartimento di Elettronica, Politecnico di Torino, Italy;Dipartimento di Elettronica, Politecnico di Torino, Italy;Dipartimento di Elettronica, Politecnico di Torino, Italy;Dipartimento di Elettronica, Politecnico di Torino, Italy

  • Venue:
  • Journal of VLSI Signal Processing Systems
  • Year:
  • 2003

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Abstract

This paper proposes two JPEG 2000 compliant architectures: one for DWT (Discrete Wavelet Transform) and one for IWT (Integer Wavelet Transform) implementation. First of all some theoretical issues about DWT and IWT are discussed, then, starting from transforms characteristics, the architectures are presented showing both performance and cost. In the literature many DWT architectures have been proposed; our implementation is a new architecture that computes the DWT using filters of interest for the forthcoming JPEG 2000 standard. Moreover, we propose a Lifting Scheme based architecture for IWT, JPEG 2000 compliant too. The proposed architectures are able to support real-time streams: the DWT one, which is made of 20,000 cells, with an input throughput of 160 Msamples per second and a clock frequency of 160 MHz, the IWT one, consisting of 50,000 cells, with an input throughput of 4.5 Msamples per second and an internal clock frequency of 108 MHz.