Mathematical analysis reveals that high frequency signal components are the main issues that make MRF algorithm essential. Moreover, the aliasing problem of subsampling algorithm also comes from high frequency signal components. So based on these mathematical investigations, two fast VBSME algorithms are proposed in this paper, namely roberts cross edge detector based subsampling method and motion vector based MRF early termination algorithm. Experiments show that strong correlation exists among the motion vectors of those blocks belonging to the same macroblock. Through exploiting this feature, a dynamically adjustment of the search ranges of integer motion estimation is proposed in this paper. Combing our proposed algorithms with UMHS almost saves 96%-98% Integer Motion Estimation (IME) time compared to the exhaustive search algorithm the induced coding quality loss is less than 0.8% bitrate increase or 0.04 db PSNR decline on average.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Aliasing Error Reduction Based Fast VBSME Algorithm


    Beteiligte:
    Liu, Qin (Autor:in) / Huang, Yiqing (Autor:in) / Goto, Satoshi (Autor:in) / Ikenaga, Takeshi (Autor:in)


    Erscheinungsdatum :

    2008-05-01


    Format / Umfang :

    260589 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Reduction of aliasing ambiguities through phase relations

    Sanderson, R.B. / Tsui, J.B.Y. / Freese, N.A. | IEEE | 1992


    Aliasing effect of a QCL on a fixed-framerate sensor and potential anti-aliasing algorithm designs

    Bodrucki, Frances / Broilo, Matt / Becker, Jonathan et al. | SPIE | 2018


    Aliasing and scintillation reduction in real-time computer graphics

    Sills, T.G. / Williams, O.M. | Tema Archiv | 2004


    ALIASING ASSESSMENT DEVICE

    KONDO KATSUHIKO / TAKAYAMA TAKUYA | Europäisches Patentamt | 2021

    Freier Zugriff

    Doppler aliasing reduction in SAR imagery using stepped-frequency waveforms

    Luminati, J.E. / Hale, T.B. / Temple, M.A. et al. | IEEE | 2007