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Fast and Efficient Macroblock Mode Decision Algorithm in H.264/AVC  

Park, Seong-Bin (Dept. of Information and Telecommunication, Hoseo University)
Kim, Yong-Kwan (Dept. of Information and Telecommunication, Hoseo University)
Publication Information
Abstract
In this paper, we propose a fast macroblock mode decision algorithm in H.264/AVC, based on the image sequence statistics. Specically, considering the directional characteristics of image sequences, we eliminate sub$8{\times}4$ or sub$4{\times}8$ mode decision process based on the rate-distortion cost of Inter$16{\times}8$ or Inter$8{\times}16$ mode respectively. Additionally, exploiting the optimal modes of submacroblock in inter$8{\times}8$ mode, we propose an algorithm to eliminate Intra$4{\times}4$ or Intra$16{\times}16$ mode decision process selectively. From the simulation results, the proposed method reduce the encoding time by maximum 70% of total, compared with the other conventional methods.
Keywords
H.264/AVC; rate-distortion cost; macroblock mode; submacroblock; fast mode decision;
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Times Cited By KSCI : 3  (Citation Analysis)
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