Motion-compensated layered video coding for playback scalability

Jae Yong Lee, Hyo Sub Oh, Sung Jea Ko

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    In this paper, we propose a multilayered video coding scheme based on motion estimation which enables a decoder to dynamically change its temporal and spatial resolution during playback. In the proposed scheme, a new motion-prediction structure with a temporal hierarchy of frames is adopted to afford temporal resolution scalability and the wavelet decomposition with a new intra-update algorithm is used to offer spatial scalability. Experimental results show that the proposed scheme exhibits a higher compression ratio than conditional replenishment schemes because it further reduces the temporal redundancy using motion estimation. Also the proposed intra-update technique enables adaptation to dynamic change of spatial resolution with the effective follow-up of prediction in the decoder while preventing the large peaks in bit rate. Therefore, the proposed scheme is expected to be effectively used in heterogeneous environments such as the Internet, ATM, and wireless networks where dynamic scalability and interoperability are required.

    Original languageEnglish
    Pages (from-to)619-628
    Number of pages10
    JournalIEEE Transactions on Circuits and Systems for Video Technology
    Volume11
    Issue number5
    DOIs
    Publication statusPublished - 2001 May

    Keywords

    • Adaptation
    • Dispersive intra-subband update
    • Intra-update
    • Layered video
    • Motion estimation
    • Scalability

    ASJC Scopus subject areas

    • Media Technology
    • Electrical and Electronic Engineering

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