公开(公告)号：US20090028427A1

公开(公告)日：2009-01-29

申请号：US11926818

申请日：2007-10-29

申请人： Yoshihisa YAMADA ,  Shunichi SEKIGUCHI ,  Yoshini MORIYA ,  Kazuo SUGIMOTO ,  Yuichi IDEHARA ,  Kohtaro ASAI ,  Tokumichi MURAKAMI

发明人： Yoshihisa YAMADA ,  Shunichi SEKIGUCHI ,  Yoshini MORIYA ,  Kazuo SUGIMOTO ,  Yuichi IDEHARA ,  Kohtaro ASAI ,  Tokumichi MURAKAMI

IPC分类号： G06K9/36

CPC分类号： H04N19/00 ,  H04N19/103 ,  H04N19/12 ,  H04N19/172 ,  H04N19/186 ,  H04N19/436 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/236

摘要： There are provided an encoding device, a decoding device, an encoding method, and a decoding method that enhance optimality in a case of encoding moving image signals having no sample ratio distinction between color components such as a 4:4:4 format. In a case of conducting compression encoding by inputting digital moving image signals of the 4:4:4 format, there are prepared a first encoding process of encoding three color component signals of the input moving image signals in a common encoding mode, and a second encoding process of encoding the three color component signals of the input moving image signals in respective independent encoding modes. The encoding process is executed by selecting any one of the first encoding process and the second encoding process, and the compression data contains an identification signal for specifying which process is selected.

摘要翻译： 提供了编码装置，解码装置，编码方法和解码方法，其在对诸如4：4：4格式的颜色分量之间没有采样率区分的运动图像信号进行编码的情况下增强了最优性。 在通过输入4：4：4格式的数字运动图像信号进行压缩编码的情况下，准备了以公共编码模式对输入的运动图像信号的三个颜色分量信号进行编码的第一编码处理，第二编码处理 在各自的独立编码模式中对输入的运动图像信号的三色分量信号进行编码的编码处理。 通过选择第一编码处理和第二编码处理中的任一个来执行编码处理，并且压缩数据包含用于指定选择哪个处理的识别信号。

公开(公告)号：US20090110067A1

公开(公告)日：2009-04-30

申请号：US11928486

申请日：2007-10-30

申请人： Shunichi SEKIGUCHI ,  Shuichi YAMAGISHI ,  Yoshimi MORIYA ,  Yoshihisa YAMADA ,  Kohtaro ASAI ,  Tokumichi MURAKAMI ,  Yuichi IDEHARA

发明人： Shunichi SEKIGUCHI ,  Shuichi YAMAGISHI ,  Yoshimi MORIYA ,  Yoshihisa YAMADA ,  Kohtaro ASAI ,  Tokumichi MURAKAMI ,  Yuichi IDEHARA

IPC分类号： H04B1/66

CPC分类号： H04N19/517 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/436 ,  H04N19/523 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

摘要： An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation.

公开(公告)号：US20090003441A1

公开(公告)日：2009-01-01

申请号：US11929174

申请日：2007-10-30

申请人： Shunichi SEKIGUCHI ,  Shuichi YAMAGISHI ,  Yoshimi MORIYA ,  Yoshihisa YAMADA ,  Kohtaro ASAI ,  Tokumichi MURAKAMI ,  Yuichi IDEHARA

发明人： Shunichi SEKIGUCHI ,  Shuichi YAMAGISHI ,  Yoshimi MORIYA ,  Yoshihisa YAMADA ,  Kohtaro ASAI ,  Tokumichi MURAKAMI ,  Yuichi IDEHARA

IPC分类号： H04N11/00

CPC分类号： H04N19/517 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/436 ,  H04N19/523 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

摘要： An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation.

公开(公告)号：US20080137744A1

公开(公告)日：2008-06-12

申请号：US11932465

申请日：2007-10-31

申请人： Yoshimi MORIYA ,  Shunichi SEKIGUCHI ,  Kazuo SUGIMOTO ,  Yoshihisa YAMADA ,  Koutarou ASAI ,  Tokumichi MURAKAMI ,  Yuichi IDEHARA

发明人： Yoshimi MORIYA ,  Shunichi SEKIGUCHI ,  Kazuo SUGIMOTO ,  Yoshihisa YAMADA ,  Koutarou ASAI ,  Tokumichi MURAKAMI ,  Yuichi IDEHARA

IPC分类号： H04B1/66

CPC分类号： H04N19/174 ,  H04N19/105 ,  H04N19/12 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91

摘要： An image encoder including: a predicted-image generating unit that generates a predicted image in accordance with a plurality of prediction modes indicating predicted-image generating methods; a prediction-mode judging unit that evaluates prediction efficiency of a predicted image outputted from the predicted-image generating unit to judge a predetermined prediction mode; and an encoding unit that subjects an output of the prediction-mode judging unit to variable-length encoding. The prediction-mode judging unit judges, on the basis of a predetermined control signal, which one of a common prediction mode and a separate prediction mode is used for respective color components forming the input image signal, and multiplexes information on the control signal on a bit stream, multiplexes, when the common prediction mode is used, common prediction mode information on the bit stream, and multiplexes, when the common prediction mode is not used, prediction mode information for each of the color components on the bit stream.

公开(公告)号：US20080130990A1

公开(公告)日：2008-06-05

申请号：US11980363

申请日：2007-10-31

申请人： Yoshimi MORIYA ,  Shunichi SEKIGUCHI ,  Kazuo SUGIMOTO ,  Yoshihisa YAMADA ,  Koutarou ASAI ,  Tokumichi Murakami ,  Yuuichi Idehara

发明人： Yoshimi MORIYA ,  Shunichi SEKIGUCHI ,  Kazuo SUGIMOTO ,  Yoshihisa YAMADA ,  Koutarou ASAI ,  Tokumichi Murakami ,  Yuuichi Idehara

IPC分类号： G06K9/00

CPC分类号： H04N19/436 ,  H04N19/11 ,  H04N19/13 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70

摘要： An image encoder including: a predicted-image generating unit that generates a predicted image in accordance with a plurality of prediction modes indicating predicted-image generating methods; a prediction-mode judging unit that evaluates prediction efficiency of a predicted image outputted from the predicted-image generating unit to judge a predetermined prediction mode; and an encoding unit that subjects an output of the prediction-mode judging unit to variable-length encoding. The prediction-mode judging unit judges, on the basis of a predetermined control signal, which one of a common prediction mode and a separate prediction mode is used for respective color components forming the input image signal, and multiplexes information on the control signal on a bit stream, multiplexes, when the common prediction mode is used, common prediction mode information on the bit stream, and multiplexes, when the common prediction mode is not used, prediction mode information for each of the color components on the bit stream.

摘要翻译： 一种图像编码器，包括：预测图像生成单元，其根据表示预测图像生成方法的多个预测模式生成预测图像; 预测模式判断单元，其评估从所述预测图像生成单元输出的预测图像的预测效率，以判断预定的预测模式; 以及编码单元，其对预测模式判断单元的输出进行可变长度编码。 预测模式判断单元基于预定的控制信号来判断为形成输入图像信号的各个颜色成分使用公共预测模式和单独预测模式中的哪一个，并且将关于控制信号的信息复用到 当使用公共预测模式时，对比特流的公共预测模式信息进行复用，并且当不使用公共预测模式时，多路复用当前比特流中的每个颜色分量的预测模式信息。

公开(公告)号：US20100172415A1

公开(公告)日：2010-07-08

申请号：US12648837

申请日：2009-12-29

申请人： Shunichi SEKIGUCHI ,  Kohtaro Asai ,  Tokumichi Murakami ,  Hirofumi Nishikawa ,  Shinichi Kuroda ,  Yoshimi Isu ,  Yuri Hasegawa

发明人： Shunichi SEKIGUCHI ,  Kohtaro Asai ,  Tokumichi Murakami ,  Hirofumi Nishikawa ,  Shinichi Kuroda ,  Yoshimi Isu ,  Yuri Hasegawa

IPC分类号： H04N7/34

CPC分类号： H04N19/523 ,  H04N19/53 ,  H04N19/537 ,  H04N19/61

摘要： A method and a video decoder for decoding an encoded bitstream of video data in a picture encoding and decoding system are disclosed. The video decoder includes a motion compensation unit for calculating a position for a sample image portion using an encoded bitstream of video data having a motion vector and rounding information. The calculated position of a sample image is rounded with the rounding information. The rounding information indicates the accuracy for rounding, and it is decoded from the bitstream. An image reconstruction unit reconstructs a decoded image portion of the video data from the sample image portion.

摘要翻译： 公开了一种用于对图像编码和解码系统中的视频数据的编码比特流进行解码的方法和视频解码器。 视频解码器包括运动补偿单元，用于使用具有运动矢量和舍入信息的视频数据的编码比特流来计算采样图像部分的位置。 样本图像的计算位置用舍入信息四舍五入。 舍入信息表示舍入的精度，并从比特流中解码。 图像重建单元从样本图像部分重建视频数据的解码图像部分。

公开(公告)号：US20080144718A1

公开(公告)日：2008-06-19

申请号：US11932623

申请日：2007-10-31

申请人： Shunichi SEKIGUCHI ,  Kohtaro ASAI ,  Tokumichi MURAKAMI ,  Hirofumi NISHIKAWA ,  Shinichi KURODA ,  Yoshimi ISU ,  Yuri HASEGAWA

发明人： Shunichi SEKIGUCHI ,  Kohtaro ASAI ,  Tokumichi MURAKAMI ,  Hirofumi NISHIKAWA ,  Shinichi KURODA ,  Yoshimi ISU ,  Yuri HASEGAWA

IPC分类号： H04N7/32

CPC分类号： H04N7/24 ,  H04N19/105 ,  H04N19/127 ,  H04N19/137 ,  H04N19/142 ,  H04N19/179 ,  H04N19/186 ,  H04N19/196 ,  H04N19/23 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/503 ,  H04N19/537 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/87

摘要： To achieve an encoding system including a highly efficient prediction performed in response to the content of a scene, a significance, and a motion characteristic of a moving picture and the like, memories a, b, c, motion compensator 5 responsive to an arbitrary transform parameter representing the motion of a prediction picture segment for generating a predicted picture by using arbitrary data stored in the memories a, b, c based upon the transform parameter, and memory update unit 15 for allowing the content of one or more of the memories to be updated at an arbitrary period of time, are provided.

公开(公告)号：US20120044099A1

公开(公告)日：2012-02-23

申请号：US13213462

申请日：2011-08-19

申请人： Shunichi SEKIGUCHI ,  Yoshihisa YAMADA ,  Kohtaro ASAI

发明人： Shunichi SEKIGUCHI ,  Yoshihisa YAMADA ,  Kohtaro ASAI

IPC分类号： H03M7/30

CPC分类号： H04N7/52 ,  H03M7/40 ,  H03M7/4006 ,  H04N19/105 ,  H04N19/107 ,  H04N19/124 ,  H04N19/13 ,  H04N19/137 ,  H04N19/152 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/2381 ,  H04N21/4363 ,  H04N21/4381

摘要： A digital decoding apparatus for receiving and decoding a compression-coded digital signal in predetermined transmission units is disclosed. The decoding apparatus includes an initialization unit for initializing an entropy coding process based on information of initializing a table of probability of occurrence which is multiplexed on a header of data for the predetermined transmission units, a context model determination unit for determining a context model to be used for each type of decoded data among a plurality of context models, a probability of occurrence generation unit for providing a probability of occurrence corresponding to the context model, and an entropy decoding unit for entropy decoding based on the generated probability of occurrence. A digital signal coding apparatus for making a compression coding of a digital signal is also disclosed.

摘要翻译： 公开了一种用于以预定传输单元接收和解码压缩编码数字信号的数字解码装置。 解码装置包括：初始化单元，用于基于在预定传输单元的数据的报头上多路复用的出现概率表的初始化信息来初始化熵编码处理;上下文模型确定单元，用于将上下文模型确定为 用于多个上下文模型中的每种类型的解码数据，用于提供与上下文模型相对应的出现概率的发生生成单元的概率，以及用于基于生成的发生概率进行熵解码的熵解码单元。 还公开了一种用于进行数字信号的压缩编码的数字信号编码装置。

公开(公告)号：US20080063069A1

公开(公告)日：2008-03-13

申请号：US11926816

申请日：2007-10-29

申请人： Shunichi SEKIGUCHI ,  Yoshihisa YAMADA ,  Kohtaro ASAI

发明人： Shunichi SEKIGUCHI ,  Yoshihisa YAMADA ,  Kohtaro ASAI

IPC分类号： H04N7/26

CPC分类号： H04N19/59 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/117 ,  H04N19/124 ,  H04N19/152 ,  H04N19/154 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/523 ,  H04N19/57 ,  H04N19/61

摘要： Each of an image coding apparatus and an image decoding apparatus uses a motion compensated prediction using virtual samples so as to detect a motion vector for each of regions of each frame of an input signal. Accuracy of virtual samples is locally determined while the accuracy of virtual samples is associated with the size of each region which is a motion vector detection unit in which a motion vector is detected. Virtual samples having half-pixel accuracy are used for motion vector detection unit regions having a smaller size 8×8 MC, such as blocks of 8×4 size, blocks of 4×8 size, and blocks of 4×4 size, and virtual samples having ¼-pixel accuracy are used for motion vector detection unit regions that are equal to or larger than 8×8 MC in size.

公开(公告)号：US20070263723A1

公开(公告)日：2007-11-15

申请号：US11781682

申请日：2007-07-23

申请人： Shunichi SEKIGUCHI ,  Yoshihisa Yamada ,  Kohtaro Asai

发明人： Shunichi SEKIGUCHI ,  Yoshihisa Yamada ,  Kohtaro Asai

IPC分类号： H04N7/12

CPC分类号： H04N7/52 ,  H03M7/40 ,  H03M7/4006 ,  H04N19/105 ,  H04N19/107 ,  H04N19/124 ,  H04N19/13 ,  H04N19/137 ,  H04N19/152 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/2381 ,  H04N21/4363 ,  H04N21/4381

摘要： In a bit stream syntax containing compressed video slice data for compressed video data of a slice structure, a slice header for compressed video slice data has attached thereto a slice start code, a register reset flag indicating whether a register value, which designates a status of a codeword occurring in an arithmetic coding process, should be reset in the next transmission unit, an initial register value which indicates a register value to be used to start arithmetic coding/decoding to build/decompose the next transmission unit, only when the register reset flag indicates that the register should not be reset.

摘要翻译： 在包含片段结构的压缩视频数据的压缩视频片段数据的比特流语法中，用于压缩视频片段数据的片头附加有片起始码，寄存器复位标志指示是否指定状态的寄存器值 在算术编码处理中出现的码字应该在下一个发送单元中复位，初始寄存器值仅在寄存器复位时才指示用于开始算术编码/解码以构建/分解下一个发送单元的寄存器值 标志表示不应该重置寄存器。