Spatio-temporal video transcoder for streaming over mobile communications networks

Jae Won Kim, Goo Rak Kwon, June Sok Lee, Nam Hyeong Kim, Sung Jea Ko

Research output: Contribution to journalArticlepeer-review


Video transcoding technique is an efficient mechanism to deliver visual contents to a variety of users who have different network conditions or terminal devices with different display capabilities. In this paper, we propose two types of transcoding methods for adapting the bitrate of streaming video to the bandwidth of the transmission channel; spatial resolution reduction (SRR) transcoding and temporal resolution reduction (TRR) transcoding. The two transcoding methods are alternatively operated according to the requirements of users. Experimental results show that the proposed transcoding methods can preserve image quality while transcoding to the low bitrate.

Original languageEnglish
Pages (from-to)2678-2686
Number of pages9
JournalIEICE Transactions on Communications
Issue number10
Publication statusPublished - 2006 Oct


  • Downsizing
  • Frame-skipping
  • Refinement
  • Streaming
  • Transcoder
  • Transcoding

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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