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    • 8. 发明授权
    • Method and apparatus of de-interlacing video
    • 去隔行视频的方法和装置
    • US08165211B2
    • 2012-04-24
    • US12129891
    • 2008-05-30
    • King Ngi NganJie DongYan Huo
    • King Ngi NganJie DongYan Huo
    • H04N7/12
    • H04N19/61H04N7/012H04N7/014H04N7/0142H04N19/80
    • The presently claimed invention adaptively selects a local de-interlacing method according to information from a compressed video bitstream. According to one embodiment, successive images from a video bitstream are first reconstructed. Syntax elements, selected from a macroblock type, a macroblock partition, a motion vector, a distance from a reference frame, the existence of non-zero transform coefficients and the distribution of transform coefficients, are then extracted from this bitstream. Based on the syntax elements, a de-interlacing algorithm is decided from an algorithm set for each image region in a video frame. Algorithms in the algorithm set include motion compensation, edge-based line averaging, and line averaging. Each image region is thereby interpolated using the de-interlacing algorithm and complementary motion compensation. The complementary motion compensation de-interlaces the image region using an inverse of motion vectors extracted from a bitstream clip representing neighboring frames.
    • 目前要求保护的发明根据来自压缩视频比特流的信息自适应地选择局部去隔行方法。 根据一个实施例,首先重构来自视频位流的连续图像。 然后从该比特流中提取从宏块类型,宏块分区,运动矢量,距参考帧的距离,非零变换系数的存在和变换系数的分布中选出的语法元素。 基于语法元素,从针对视频帧中的每个图像区域的算法确定去隔行算法。 算法集中的算法包括运动补偿,基于边缘的线平均和线平均。 因此,使用去隔行算法和互补运动补偿来内插每个图像区域。 补充运动补偿使用从表示相邻帧的比特流片段提取的运动矢量的倒数来去交织图像区域。