VHDL Implementation of the Fast Wavelet Transform

  • Authors:

  • Paul Salama;Maher E. Rizkalla;Michael Eckbauer

  • Affiliations:

  • Electrical and Computer Engineering, Indiana University-Purdue University Indianapolis, Indianapolis 46033;Electrical and Computer Engineering, Indiana University-Purdue University Indianapolis, Indianapolis 46033;Electrical and Computer Engineering, Indiana University-Purdue University Indianapolis, Indianapolis 46033

  • Venue:
  • Journal of VLSI Signal Processing Systems
  • Year:
  • 2006

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Abstract

In this paper, a VHDL implementation of a decomposition unit based on Mallat's fast Wavelet Transform, which utilizes a two-channel subband coder, is described. The units were simulated, synthesized, and optimized using Mentor® design tools. The final design was verified with VHDL test benches and Matlab image processing tools. Results of the decomposition for color images validate the design. Utilizing a clock frequency of 25 MHz, a time period of 45 ms was estimated for the decomposition process of a 640 脳 480 color image, which makes it feasible for real time video compression. The size of the layout was found to be within 2.5 脳 2.5 mm, which suggests a 40 pin-package tiny frame.