• DocumentCode
    3288710
  • Title

    A new type of integer DCT transform radix and its rapid algorithm

  • Author

    Wu Junqin ; Li Yanli

  • Author_Institution
    Inf. Eng. Inst., Jiangxi Univ. of Sci. & Technol., Gan´zhou, China
  • fYear
    2011
  • fDate
    15-17 April 2011
  • Firstpage
    1063
  • Lastpage
    1066
  • Abstract
    Without changing the features of the integer DCT transform radix, improve on its matrix filling rules and get a new type of integer DCT transform radix. Other than orthogonality, such a variety of integer DCT transform radix also meet the quantity relationships between elements of an integer as a matrix, and the normalized coefficients matrix have similar characteristic with the original DCT matrix. This type of transform radix can be implemented by rapid butterfly algorithm, in such fast algorithm implementation of integer DCT, no multiplication, just additions and shifts operations. This fast algorithm of integer DCT ensure the accuracy of transformation operations, reduce the complexity of the transformation operations.
  • Keywords
    discrete cosine transforms; matrix algebra; video coding; DCT; image coding; integer transform radix; matrix filling rules; normalized coefficients matrix; video compression; Accuracy; Complexity theory; Discrete cosine transforms; Encoding; Matrix decomposition; Quantization; complexity; integer DCT transform; rapid algorithm; transform radix;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electric Information and Control Engineering (ICEICE), 2011 International Conference on
  • Conference_Location
    Wuhan
  • Print_ISBN
    978-1-4244-8036-4
  • Type

    conf

  • DOI
    10.1109/ICEICE.2011.5778056
  • Filename
    5778056