Realtime H.264 encoding system using fast motion estimation and mode decision

Byeong Doo Choi, Min Cheol Hwang, Jun Ki Cho, Jin Sam Kim, Jin Hyung Kim, Sung Jea Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


H.264 provides various useful features such as improved coding efficiency and error robustness. These features enable mobile device to adopt H.264/AVC standard to achieve effective video communications. However, the encoder complexity is greatly increased mainly due to motion estimation (ME) and mode decision. We implemented a realtime H.264 encoding system based on DSP and FPGA chip using the propose scheme to jointly optimize inter mode selection and ME using the multi-resolution analysis. In our paper, we focus on reducing the complexity while maintaining the visual quality output. Experimental results show that the proposed algorithm is over 3 times faster than the existing method while maintaining the coding efficiency and the implemented system. The implemented H.264 encoder meets the common requirement of the real-time video coding [30 frames/sec].

Original languageEnglish
Title of host publicationEmbedded and Ubiquitous Computing - International Conference EUC 2005, Proceedings
PublisherSpringer Verlag
Number of pages10
ISBN (Print)3540308075, 9783540308072
Publication statusPublished - 2005
EventInternational Conference on Embedded and Ubiquitous Computing, EUC 2005 - Nagasaki, Japan
Duration: 2005 Dec 62005 Dec 9

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3824 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


OtherInternational Conference on Embedded and Ubiquitous Computing, EUC 2005


  • H.264
  • Inter mode decision
  • MRME
  • Mobile video communication
  • Motion estimation

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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