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    • 40. 发明申请
    • FRAME INTERPOLATION DEVICE AND METHOD
    • 框架插值装置和方法
    • US20120008689A1
    • 2012-01-12
    • US13071851
    • 2011-03-25
    • Osamu NASUYoshiki OnoToshiaki KuboKoji Minami
    • Osamu NASUYoshiki OnoToshiaki KuboKoji Minami
    • H04N7/26
    • H04N19/587H04N19/132H04N19/53H04N19/57
    • To interpolate a frame between two frames of a video signal, sets of reference images are generated, each set having a different resolution level. Motion between the two frames is estimated at each resolution level by using these sets of reference images. For each pixel processed at each resolution level, multiple motion vector candidates are obtained. Information indicating the multiple motion vector candidates is used to select motion search ranges at the next higher resolution level. To determine the motion search range for a pixel, selected motion vector candidates pertaining both to the pixel itself and to its neighboring pixels are used. An interpolated frame of high image quality is thereby obtainable without increased computation and with reduced risk of major image defects due to erroneous motion estimation.
    • 为了内插视频信号的两帧之间的帧,生成参考图像组,每组具有不同的分辨率级别。 通过使用这些参考图像组,在每个分辨率级别估计两帧之间的运动。 对于在每个分辨率级处理的每个像素,获得多个运动矢量候选。 指示多个运动矢量候选的信息用于选择下一较高分辨率级别的运动搜索范围。 为了确定像素的运动搜索范围,使用与像素本身及其相邻像素相关的所选运动矢量候选。 从而可以在不增加计算的情况下获得高图像质量的内插帧,并且由于错误的运动估计导致主要图像缺陷的风险降低。