Dynamic frame-skipping transcoding with motion information considered

H. Shu, L. P. Chau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)


Frame-skipping transcoding is an efficient tool for reducing the bit rate when transmitting precoded video over bandwidth-constrained channels. In this process, the motion information is an important factor to be considered. Traditional methods consider only the motion activity information in dynamic frame-skipping transcoding. The concept of motion change is introduced to evaluate motion continuity. Combined with the motion activity information, these two parts of motion information are used to dynamically skip frames without seriously affecting the visual quality. A new frame-skipping scheme with a variable length prediction window is also proposed. Experimental results show that the proposed method can present a smooth frame rate variation, and well preserve the original motion information with tolerable delay. At the same time, spatial quality is also improved.

Original languageEnglish
Pages (from-to)335-342
Number of pages8
JournalIET Image Processing
Issue number4
Publication statusPublished - Dec 2007
Externally publishedYes

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering


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