In video transcoding, the compressed video bit stream is often converted to the reduced frame rate video bit stream in order to reduce the bit rate. To speed up this operation, a video transcoder usually reuses the decoded motion vectors from the incoming bit stream. Previously, the bilinear interpolation method and forward dominant vector selection method were proposed to compose the missing motion vectors for reuse. In this paper, we propose a new algorithm, called the efficient-forward dominant vector selection, which utilizes the difference between dominant macroblock and motion vector from the incoming ones. We propose a motion vector refinement algorithm called the direction oriented search. The performance of experimental results can be improved while maintaining low computational complexity for a reduced frame rate video transcoder.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    An efficient motion re-estimation algorithm for frame-skipping video transcoding


    Contributors:


    Publication date :

    2005-01-01


    Size :

    495581 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    An Efficient Motion Re-estimation algorithm for Frame-skipping Video Transcoding

    Yang, S. / Kim, D. / Jeon, Y. et al. | British Library Conference Proceedings | 2005


    Location-Based Frame Skipping

    REDDY VANSHIKA SHYAMALA / SKACEL NICHOLAS PATRICK / NGUYEN SON BACH | European Patent Office | 2024

    Free access

    Location-based frame skipping

    REDDY VANSHIKA SHYAMALA / SKACEL NICHOLAS PATRICK / NGUYEN SON BACH | European Patent Office | 2025

    Free access

    Motion Drift Modeling and Correction for Downscale Video Transcoding

    Shen, B. | British Library Conference Proceedings | 2005