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    • 1. 发明申请
    • COMPRESSING IMAGE DATA
    • 压缩图像数据
    • WO2012174636A1
    • 2012-12-27
    • PCT/CA2011/050384
    • 2011-06-22
    • RESEARCH IN MOTION LIMITEDHE, DakeYU, XiangWANG, Jing
    • HE, DakeYU, XiangWANG, Jing
    • G06T9/00H04N7/50
    • H04N19/48H04N19/105H04N19/176H04N19/463H04N19/50
    • Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.
    • 描述用于编码和解码图像的方法,系统和计算机程序。 在一些方面,访问输入数据块和预测数据块。 基于将输入数据块投影到预测数据块上而产生投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 基于输入数据块和缩放预测数据块之间的差异生成残留数据块。 在一些方面,访问与残留数据块相关联的预测数据块,残差数据块和投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 通过对残差数据块和缩放预测数据块求和来生成输出数据块。
    • 2. 发明申请
    • COMPRESSING IMAGE DATA
    • 压缩图像数据
    • WO2012174635A1
    • 2012-12-27
    • PCT/CA2011/050383
    • 2011-06-22
    • RESEARCH IN MOTION LIMITEDHE, DakeYU, XiangWANG, Jing
    • HE, DakeYU, XiangWANG, Jing
    • G06T9/00H04N7/32H04N7/50
    • H04N19/48H04N19/105H04N19/176H04N19/463H04N19/50
    • Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.
    • 描述了用于编码和解码图像的方法,系统和计算机程序。 在一些方面,访问输入数据块和预测数据块。 基于输入数据块在预测数据块上的投影来生成投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 基于输入数据块和缩放预测数据块之间的差生成残差数据块。 在一些方面,访问与残差数据块相关联的预测数据块,残差数据块和投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 输出数据块是通过对残差数据块和缩放预测数据块求和而生成的。