Moving image encoding and decoding system
    50.
    发明授权
    Moving image encoding and decoding system 有权
    运动图像编解码系统

    公开(公告)号:US09277238B2

    公开(公告)日:2016-03-01

    申请号:US13051768

    申请日:2011-03-18

    CPC classification number: H04N19/573 H04N19/51 H04N19/593

    Abstract: A moving image encoding and decoding system reduces compressed moving picture data amounts by producing a prediction signal suitable for moving pictures including dynamic textures. The system includes a moving picture encoding device 1 that includes a block divider 102 receiving a target pixel signal, a prediction signal generator 103 producing a prediction signal, a subtractor 105 producing a differential signal, and a transformer 106 and quantizer 107 producing an encoded differential signal. The encoding device 1 also includes an inverse quantizer 108 and inverse transformer 109 producing a decoded differential signal, an adder 110 producing a reproduction signal, a frame memory 104 storing the reproduction signal as a reference image, and a reference image generator 113. The reference image generator 113 may obtain an observation matrix C by using a pre-existing reference image. The encoding system 1 produces a new reference image y″t+5 based on the observation matrix C and a state vector xt+5, and stores the new reference image in the frame memory 104. The prediction signal generator 103 produces the prediction signal by using at least the new reference image y″t+5.

    Abstract translation: 运动图像编码和解码系统通过产生适合于包括动态纹理的运动图像的预测信号来减少压缩的运动图像数据量。 该系统包括运动图像编码装置1,其包括接收目标像素信号的块分割器102,产生预测信号的预测信号发生器103,产生差分信号的减法器105以及产生编码差分的变换器106和量化器107 信号。 编码装置1还包括产生解码差分信号的逆量化器108和逆变换器109,产生再现信号的加法器110,存储再现信号作为参考图像的帧存储器104和参考图像生成器113。 图像生成器113可以通过使用预先存在的参考图像来获得观察矩阵C. 编码系统1基于观察矩阵C和状态向量xt + 5产生新的参考图像y“t + 5,并将新的参考图像存储在帧存储器104中。预测信号发生器103通过 至少使用新的参考图像y“t + 5。

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