Bitrate reduction using FMO for video streaming over packet networks

Le Thanh Ha, Hye Soo Kim, Chun Su Park, Seung Won Jung, Sung Jea Ko

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Flexible macroblock ordering (FMO), adopted in the H.264 standard, allows to partition all macroblocks (MBs) in a frame into separate groups of MBs called Slice Groups (SGs). FMO can not only support error-resilience, but also control the size of video packets for different network types. However, it is well-known that the number of bits required for encoding the frame is increased by adopting FMO. In this paper, we propose a novel algorithm that can reduce the bitrate overhead caused by utilizing FMO. In the proposed algorithm, all MBs are grouped in SGs based on the similarity of the transform coefficients. Experimental results show that our algorithm can reduce the bitrate as compared with conventional FMO.

Original languageEnglish
Pages (from-to)316-318
Number of pages3
JournalWorld Academy of Science, Engineering and Technology
Publication statusPublished - 2009 Jan


  • Data Partition
  • Entropy Coding
  • Greedy Algorithm
  • H.264/AVC
  • Slice Group

ASJC Scopus subject areas

  • Engineering(all)


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