• DocumentCode
    1109567
  • Title

    Adaptive mode decision for H.264 encoder

  • Author

    Kim, Y.-H. ; Yoo, J.-W. ; Lee, S.-W. ; Shin, J. ; Paik, J. ; Jung, H.-K.

  • Author_Institution
    Dept. of Image Eng., Chung-Ang Univ., Seoul, South Korea
  • Volume
    40
  • Issue
    19
  • fYear
    2004
  • Firstpage
    1172
  • Lastpage
    1173
  • Abstract
    An adaptive mode decision algorithm is presented, with rate-distortion optimisation that reduces the complexity of the H.264 encoder without loss of image quality and compression ratio. The proposed algorithm uses the property of an all-zero coefficients block that is produced by quantisation and coefficient thresholding to effectively skip unnecessary modes. Experimental results show that the speed of the adaptive mode decision algorithm is two times faster than the full-mode decision algorithm of the JM72 reference encoder, without any coding loss.
  • Keywords
    decision theory; optimisation; rate distortion theory; video coding; H.264 encoder; JM72 reference encoder; adaptive mode decision algorithm; all-zero coefficients block; coding loss; coefficient thresholding; full mode decision algorithm; image compression ratio; image quality; quantisation; rate distortion optimisation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20046155
  • Filename
    1336631
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1109567