Abstract

A variety of error resilience and scalable coding techniques have recently been proposed to facilitate the delivery of video over best-effort networks; a common drawback of these techniques is reduced compression efficiency. Also, MPEG-7 descriptors have recently been developed for the purpose of indexing. In this paper, we propose to employ MPEG-7 descriptors to improve the quality of the video delivered over best-effort networks. In particular, we propose a video transmission system that uses the motion activity descriptors to ensure robust video transmission. A novel motion activity extraction technique is proposed, which relies on a neural network approach. By considering several low-level visual features, our proposed extraction approach achieves high consistency with subjective evaluations of motion activities. In order to demonstrate the benefits of the proposed transmission system, we develop a selective packet dropping scheme that can be applied in case of network congestion. Simulations demonstrate that the reconstruction quality of the proposed congestion scheme can surpass conventional schemes by 1.2 dB. The network performance of the proposed transmission system when video sequences are coded into single layer or scalable layers is presented. We also present a transcoding scheme that achieves the optimal reconstructed quality by exploiting the motion activities of the underlying video sequence.

Original languageEnglish (US)
Article number1683820
Pages (from-to)929-945
Number of pages17
JournalIEEE Transactions on Circuits and Systems for Video Technology
Volume16
Issue number8
DOIs
StatePublished - Aug 2006

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Network performance
Neural networks

Keywords

  • Congestion control
  • Motion intensity level
  • MPEG-7 descriptors
  • Transcoding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Adaptive video transmission schemes using MPEG-7 motion intensity descriptor. / Lotfallah, Osama A.; Reisslein, Martin; Panchanathan, Sethuraman.

In: IEEE Transactions on Circuits and Systems for Video Technology, Vol. 16, No. 8, 1683820, 08.2006, p. 929-945.

Research output: Contribution to journalArticle

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