DCT-IV computation

  • Authors:
  • V. S. Shaptala;M. V. Korman

  • Affiliations:
  • ARC International, St. Petersburg, Russia 195265;ARC International, St. Petersburg, Russia 195265

  • Venue:
  • Pattern Recognition and Image Analysis
  • Year:
  • 2008

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Abstract

A new fast algorithm for computing a type of discrete cosine transform applied to compute modified cosine transform is described. The number of arithmetic operations of the algorithm is estimated and interpreted. The computational scheme with substitution of variables is presented, and methods for optimizing the code for digital signal processors are proposed.