Title :
Efficient block size selection in H.264 video coding standard
Author :
Ahmad, A. ; Khan, N. ; Masud, S. ; Maud, M.A.
Author_Institution :
Dept. of Comput. Sci., Lahore Univ. of Manage. Sci., Pakistan
Abstract :
Selecting an efficient variable block size mode in H.264 video coding standard for better compression performance is considered. The proposed scheme is based on a 3D recursive search algorithm and takes into account the motion vector cost and previous frame information. The best mode for the current macroblock is obtained by analysing the modes for a maximum of four macroblocks in the current and previous frames. An improvement in the encoding time with negligible impact on subjective and quantitative performance has been achieved.
Keywords :
block codes; code standards; computational complexity; iterative methods; motion estimation; recursive functions; telecommunication computing; video coding; 3D recursive search algorithm; H.264 video coding standard; compression performance; computational complexity; efficient block size selection; encoding time; faster convergence; macroblocks; motion vector cost; previous frame information; variable block size mode; video compression standard;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040068