• DocumentCode
    1174234
  • Title

    Efficient image downconversion for mixed field/frame-mode macroblocks

  • Author

    Suh, Sungjoo ; Chun, Seong Soo ; Lee, Myung-Hee ; Sull, Sanghoon

  • Author_Institution
    Dept. of Electron. & Comput. Eng., Korea Univ., Seoul, South Korea
  • Volume
    39
  • Issue
    6
  • fYear
    2003
  • fDate
    3/20/2003 12:00:00 AM
  • Firstpage
    514
  • Lastpage
    515
  • Abstract
    An efficient image downconversion algorithm in the compressed domain for mixed field/frame-mode macroblocks is proposed. A 16 × 16 field/frame-mode macroblock is converted into an 8 × 8 reduced block in the discrete cosine transform (DCT) domain using a modified inverse DCT (IDCT) kernel. Experimental results show that the proposed algorithm provides the downconverted image quality similar to an existing method with significantly lower computational cost.
  • Keywords
    discrete cosine transforms; image processing; image downconversion algorithm; mixed field/frame-mode macroblock; modified inverse discrete cosine transform kernel;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20030362
  • Filename
    1192202
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1174234