公开(公告)号：US20070154105A1

公开(公告)日：2007-07-05

申请号：US11712010

申请日：2007-02-28

申请人： Satoru Adachi ,  Minoru Etoh ,  Sadaatsu Kato ,  Thiow Tan

发明人： Satoru Adachi ,  Minoru Etoh ,  Sadaatsu Kato ,  Thiow Tan

IPC分类号： G06K9/36

CPC分类号： H04N19/625 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/61

摘要： Image encoding apparatus 10 according to the present invention is an image encoding apparatus 10 for dividing image signals into blocks, performing an orthogonal transform of each block, reading resultant orthogonal transform coefficients to obtain a coefficient string, and performing entropy coding, which has block selector 14 for selecting a size of a block for the orthogonal transform, out of a plurality of blocks of different sizes; coefficient string divider 12 for, when a block of a size larger than a minimum size is selected by block selector 14, dividing a coefficient string in the block into a plurality of coefficient strings of a length equal to that of a coefficient string in a block of the minimum size; and encoder 13 for performing entropy coding adapted to the coefficient string in the block of the minimum size. This substantializes the image encoding apparatus capable of achieving efficient entropy coding in the orthogonal transform of variable sizes.

摘要翻译： 根据本发明的图像编码装置10是用于将图像信号划分成块的图像编码装置10，执行每个块的正交变换，读取所得到的正交变换系数以获得系数串，并执行具有块选择器的熵编码 14，用于从多个不同大小的块中选择正交变换的块的大小; 系数字符串分割器12，当通过块选择器14选择尺寸大于最小尺寸的块时，将块中的系数串划分成与块中的系数串的长度相等的多个系数串 的最小尺寸; 以及编码器13，用于执行适于最小尺寸的块中的系数串的熵编码。 这实现了能够在可变尺寸的正交变换中实现有效熵编码的图像编码装置。

公开(公告)号：US20050063466A1

公开(公告)日：2005-03-24

申请号：US10496017

申请日：2002-11-29

申请人： Minoru Etoh ,  Satoru Adachi ,  Mitsuru Kobayashi ,  Sadaatsu Kato

发明人： Minoru Etoh ,  Satoru Adachi ,  Mitsuru Kobayashi ,  Sadaatsu Kato

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N9/804 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/51 ,  H04N19/523 ,  H04N19/57 ,  H04N19/60 ,  H04N19/61 ,  H04N19/80 ,  H04N19/91 ,  H04N7/12

CPC分类号： H04N9/8042 ,  H04N19/105 ,  H04N19/117 ,  H04N19/139 ,  H04N19/157 ,  H04N19/17 ,  H04N19/503 ,  H04N19/51 ,  H04N19/523 ,  H04N19/53 ,  H04N19/56 ,  H04N19/577 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

摘要： A moving picture encoding device includes a motion vector detection section configured to detect a motion vector of a predetermined area to be encoded in a frame picture, a prediction section configured to predict the motion vector of the predetermined area to be encoded by using an encoded motion vector of a predetermined area in the frame picture, a determination section configured to determine whether or not the motion vector detected by the motion vector detection section is a predetermined motion vector set in accordance with the motion vector predicted by the prediction section, and a switching section configured to switch a method of calculating a motion compensation value of the predetermined area to be encoded depending on whether or not the motion vector detected by the motion vector detection section is the predetermined motion vector.

摘要翻译： 运动图像编码装置包括：运动矢量检测部，被配置为检测要在帧图像中编码的预定区域的运动矢量;预测部，被配置为通过使用编码运动来预测要编码的预定区域的运动矢量 帧图像中的预定区域的矢量;确定部，被配置为确定由运动矢量检测部检测的运动矢量是否是根据由预测部预测的运动矢量设定的预定运动矢量，以及切换 部分，被配置为根据运动矢量检测部分检测到的运动矢量是否是预定的运动矢量来切换计算要编码的预定区域的运动补偿值的方法。