Arbitrary frame rate transcoding through temporal and spatial complexity

Ching Ting Hsu*, Chia Hung Yeh, Chao Yu Chen, Mei Juan Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, an arbitrary frame rate transcoding joint considering temporal and spatial complexity of frames in the adaptive length sliding window is proposed. The length of a sliding window can be adjusted according to bandwidth variation in order to decide the number of skipped frames. The proposed method preserves significant frames and drops non-significant ones using the complexity measurements. Moreover, the motion vector composition algorithm is proposed to reduce the computations of motion estimation process by adopting the coding feature of variable block sizes in H.264/AVC video transcoder. Experimental results show that the proposed method achieves higher visual quality compared to other existing methods. After combining with the proposed fast motion composition algorithm, our proposed algorithm reduces encoding time significantly with slight visual quality degradation.

Original languageEnglish
Article number5291716
Pages (from-to)767-775
Number of pages9
JournalIEEE Transactions on Broadcasting
Volume55
Issue number4
DOIs
Publication statusPublished - 2009 Dec
Externally publishedYes

Keywords

  • Frame rate adaptation
  • Motion vector composition
  • Video complexity
  • Video transcoding

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

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