id: 06105402
dt: a
an: 06105402
au: Wang, Xingjun; Hao, Baozhong
ti: Applying blocking and frame grouping to design a robust and imperceptible
    video watermark.
so: Huang, De-Shuang (ed.) et al., Intelligent computing theories and
    applications. 8th international conference, ICIC 2012, Huangshan,
    China, July 25‒29, 2012. Proceedings. Berlin: Springer (ISBN
    978-3-642-31575-6/pbk). Lecture Notes in Computer Science 7390. Lecture
    Notes in Artificial Intelligence, 593-600 (2012).
py: 2012
pu: Berlin: Springer
la: EN
cc: 
ut: video watermarking; spread spectrum watermarking; video copyright
    protection; multimedia security
ci: 
li: doi:10.1007/978-3-642-31576-3_75
ab: Summary: In this paper we apply blocking and frame grouping jointly to
    design a robust and imperceptible video watermark. We use blocking to
    relax the strict pixel synchronization requirements of traditional
    pixel-based spread spectrum watermarking to block. We introduce frame
    grouping to further improve the robustness. Dividing the frame
    sequences into groups ensures the watermark robust to frame rate
    changes and greatly improve the robustness by summing the weighted
    cross-correlation coefficients. We analyze imperceptibility-robustness
    constraints of our video watermarking algorithm. Experimental results
    show that our blocking mechanism is a big step forward for solving the
    geometric distortion problems of conventional correlation-based
    watermarking in the blind detection process. Blocking and frame
    grouping contribute to design high robust, imperceptible, and low
    complicated video watermarks.
rv: