Video transcoding to support playback at a random location for scalable video coding

Chun Su Park, Tae Shick Wang, Jun Hyung Kim, Min Cheol Hwang, Sung Jea Ko

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In many applications including Internet video broadcast and interactive TV, video streams are transmitted over various networks. In order to fulfill the requirement of the users who want to watch a part of the video stream, start playback at a random location, and jump to another location, the service provider has to implement the random access functionality. In addition, when the video stream is transmitted over error-prone networks like wireless LAN, the random access point can be used as a recovery point which enables the user device to refresh the decoding process corrupted by the transmission error. In this paper, we propose a simple transcoding algorithm inserting the random access point in the pre-encoded video stream. The multimedia server adopting the proposed transcoding algorithm can support the error-resilient transmission as well as the playback at random location. Experimental results show that the proposed method can gain significant reduction in the complexity without introducing degradation on visual quality.

Original languageEnglish
Pages (from-to)227-234
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Issue number1
Publication statusPublished - 2007 Feb

Bibliographical note

Funding Information:
This research was supported by Seoul Future Contents Convergence (SFCC) Cluster established by Seoul Industry-Academy-Research Cooperation Project


  • And instantaneous decoder refresh pictures
  • Scalable video coding
  • Streaming services
  • Transcoding

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Video transcoding to support playback at a random location for scalable video coding'. Together they form a unique fingerprint.

Cite this