• DocumentCode
    1425809
  • Title

    Alignment by phase of vertical coefficients in SA-DCT

  • Author

    Acocella, Emilio Carlos ; Alcaim, Abraham

  • Author_Institution
    CETUC, Rio de Janeiro, Brazil
  • Volume
    8
  • Issue
    2
  • fYear
    2001
  • Firstpage
    42
  • Lastpage
    44
  • Abstract
    In this paper, we introduce a formula to align the vertical coefficients of the SA-DCT (shape-adaptive discrete cosine transform). Instead of grouping coefficients with the same index as proposed by Sikora and Makai (1995), the new method employs an alignment by phase strategy. Experimental results are given for both synthetic segments and real testing image sequences.
  • Keywords
    discrete cosine transforms; image sequences; transform coding; video coding; SA-DCT; phase strategy; real testing image sequences; shape-adaptive discrete cosine transform; synthetic segments; vertical transform coefficients alignment; Compaction; Decorrelation; Discrete cosine transforms; Helium; Image segmentation; Image sequences; Markov processes; Proposals; Testing; Video coding;
  • fLanguage
    English
  • Journal_Title
    Signal Processing Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1070-9908
  • Type

    jour

  • DOI
    10.1109/97.895370
  • Filename
    895370
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1425809