A GUARANTEED-RATE TILED MEMORY-DATA COMPRESSION
    16.
    发明申请
    A GUARANTEED-RATE TILED MEMORY-DATA COMPRESSION 审中-公开
    有保证的电量记忆数据压缩

    公开(公告)号:US20140044193A1

    公开(公告)日:2014-02-13

    申请号:US14053080

    申请日:2013-10-14

    Abstract: A method of compressing digital image data is provided that includes, for each image data block in a plurality of image data blocks in the digital image data, transforming image data in the image data block to convert the image data to a low-frequency coefficient and a plurality of high-frequency coefficients, computing a predicted low-frequency coefficient for the image data block based on at least one neighboring image data block in the plurality of image data blocks, computing a residual low-frequency coefficient based on the predicted low-frequency coefficient and the low-frequency coefficient, quantizing the plurality of high-frequency coefficients, and entropy coding the residual low-frequency coefficient and the quantized high-frequency coefficients.

    Abstract translation: 提供一种压缩数字图像数据的方法,包括对于数字图像数据中的多个图像数据块中的每个图像数据块,对图像数据块中的图像数据进行变换,以将图像数据转换为低频系数, 多个高频系数,基于所述多个图像数据块中的至少一个相邻图像数据块计算所述图像数据块的预测低频系数,基于所述预测低频系数计算残留低频系数; 频率系数和低频系数,对多个高频系数进行量化,对剩余低频系数和量化高频系数进行熵编码。

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