公开(公告)号：US4884136A

公开(公告)日：1989-11-28

申请号：US250160

申请日：1988-09-28

申请人： Yuichi Ninomiya ,  Yoshimichi Ohtsuka ,  Yoshinori Izumi ,  Seiichi Gohshi ,  Yoshiaki Shishikui

发明人： Yuichi Ninomiya ,  Yoshimichi Ohtsuka ,  Yoshinori Izumi ,  Seiichi Gohshi ,  Yoshiaki Shishikui

IPC分类号： H04N19/50 ,  H04N5/14 ,  H04N7/015 ,  H04N11/04 ,  H04N19/00 ,  H04N19/423 ,  H04N19/59 ,  H04N19/80 ,  H04N19/85

CPC分类号： H04N7/0152 ,  H04N19/503 ,  H04N5/144

摘要： The motion detection circuit is so constructed that an interframe difference signal is passed through a horizontal direction LPF and a vertical direction LPF in cascade connection, and the interframe difference signal thus obtained is divided by the value obtained by mixing an edge signal of an image and the image level signal of the image by a mixing circuit, thus providing a motion signal.

摘要翻译： 运动检测电路被构造成使得帧间差分信号在级联连接中通过水平方向LPF和垂直方向LPF，并且将由此获得的帧间差分信号除以通过混合图像的边缘信号和 通过混合电路的图像的图像级信号，从而提供运动信号。

公开(公告)号：US5534927A

公开(公告)日：1996-07-09

申请号：US975433

申请日：1992-11-12

申请人： Yoshiaki Shishikui ,  Yukihiro Nishida ,  Eisuke Nakasu ,  Yoshimichi Ohtsuka ,  Hiroshi Nakanishi

发明人： Yoshiaki Shishikui ,  Yukihiro Nishida ,  Eisuke Nakasu ,  Yoshimichi Ohtsuka ,  Hiroshi Nakanishi

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  H04N7/50 ,  H04N7/32

CPC分类号： H04N19/184 ,  H04N19/107 ,  H04N19/12 ,  H04N19/122 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/63 ,  H04N19/10 ,  H04N19/115 ,  H04N19/146 ,  H04N19/149 ,  H04N19/15 ,  H04N19/30 ,  H04N19/60

摘要： A system for performing high efficiency coding of an image signal includes a differential signal generating section, a processing section, a supply section, a coefficient train outputting section, and a code assigning section. The differential signal generating section generates a differential image signal between a current image signal inputted thereto and a prediction image signal inputted thereto for the current image signal with respect to a target block. The current image signal and the differential image signal each include a plurality of blocks and the target block is one of the plurality of blocks. The processing section executes processing of a one-dimensional orthogonal transform and a quantization for an inputted objective image signal, with respect to the target block, to generate the processing result as quantization coefficients. The supply section supplies the processing section with the differential image signal as the objective image signal with respect to the target block. The coefficient train outputting section generates a quantization coefficient train from the quantization coefficients. The code assigning section assigns a code to each quantization coefficient of the train to generate a transmission signal.

摘要翻译： 用于执行图像信号的高效率编码的系统包括差分信号产生部分，处理部分，供应部分，系数序列输出部分和代码分配部分。 差分信号产生部分在输入的当前图像信号与输入的预测图像信号之间产生相对于目标块的当前图像信号的差分图像信号。 当前图像信号和差分图像信号各自包括多个块，并且目标块是多个块中的一个。 处理部对于目标块执行一维正交变换和输入的物镜图像信号的量化的处理，以生成作为量化系数的处理结果。 供给部分为处理部分提供相对于目标块的差分图像信号作为目标图像信号。 系数串输出部从量化系数生成量化系数列。 代码分配部分将代码分配给列车的每个量化系数以产生传输信号。

公开(公告)号：US06876773B2

公开(公告)日：2005-04-05

申请号：US09898984

申请日：2001-07-03

申请人： Osamu Mizuno ,  Shinichi Sakaida ,  Yoshiaki Shishikui

发明人： Osamu Mizuno ,  Shinichi Sakaida ,  Yoshiaki Shishikui

IPC分类号： H04N19/00 ,  G06T9/00 ,  H03M7/30 ,  H04N1/41 ,  H04N19/20 ,  H04N19/42 ,  H04N19/85 ,  H04N19/91 ,  G06K9/36 ,  H04N7/12

CPC分类号： G06T9/005

摘要： An apparatus for coding a binary image representing an object shape includes an inferior symbol detecting unit which decides which one of binary zero and binary one is an inferior symbol that is of smaller occurrence within a given area of the binary image, a divided portion generating unit which divides a rectangular block of the given area into divided portions, a map information generating unit which generates map information for each one of the divided portions, the map information indicating whether a corresponding one of the divided portions has the inferior symbol included therein, and a coding unit which encodes only the divided portions that have the inferior symbol included therein, wherein an identification of the inferior symbol, the map information, and the encoded divided portions are output from the apparatus.

摘要翻译： 用于对表示对象形状的二进制图像进行编码的装置包括：劣质符号检测单元，其判定二进制零和二进制中的哪一个是二进制图像的给定区域内出现较小的劣质符号;分割部分生成单元 其将所述给定区域的矩形块划分成分割部分;地图信息生成单元，其生成所述划分部分中的每一个的地图信息，所述地图信息指示所述分割部分中的相应一个是否包括其中的劣质符号;以及 编码单元，其仅对仅包含其中包含较差符号的分割部分进行编码，其中，从该装置输出劣质符号，地图信息和编码分割部分的标识。

公开(公告)号：US06771823B2

公开(公告)日：2004-08-03

申请号：US09811923

申请日：2001-03-19

申请人： Shinichi Sakaida ,  Hiroyuki Imaizumi ,  Yoshiaki Shishikui ,  Yasuaki Kanatsugu ,  Wentao Zheng

发明人： Shinichi Sakaida ,  Hiroyuki Imaizumi ,  Yoshiaki Shishikui ,  Yasuaki Kanatsugu ,  Wentao Zheng

IPC分类号： G06K936

CPC分类号： H04N19/23

摘要： A method of coding and transmitting moving pictures includes the steps of coding an extended background image, coding parameters indicative of an image area within the extended background image, coding a foreground picture that is to be composed with a background picture corresponding to the image area indicated by the parameters, coding a defocus value indicative of an extent to which the background picture should blur, and transmitting the coded extended background image, the coded parameters, the coded foreground picture, and the coded defocus value as a data stream to a decoder side. Coding and transmitting of the defocus value makes it possible to defocus the background picture at the decoder end, thereby producing a composed image of the background picture and the foreground picture having natural appearance.

摘要翻译： 编码和发送运动图像的方法包括以下步骤：对扩展背景图像进行编码，编码指示扩展背景图像内的图像区域的参数，编码将与所指示的图像区域相对应的背景图片组成的前景图像 通过参数编码表示背景画面应该模糊的程度的散焦值，并将编码的扩展背景图像，编码参数，编码前景画面和编码散焦值作为数据流发送到解码器侧 。 散焦值的编码和发送使得可以在解码器端散焦背景图像，从而产生背景图像的合成图像和具有自然外观的前景图像。