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：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：US20080170624A1

公开(公告)日：2008-07-17

申请号：US11926848

申请日：2007-10-29

申请人： Yoshihisa YAMADA ,  Shunichi Sekiguchi ,  Yoshimi Moriya ,  Kazuo Sugimoto ,  Yuichi Idehara ,  Kohtaro Asai ,  Tokumichi Murakami

发明人： Yoshihisa YAMADA ,  Shunichi Sekiguchi ,  Yoshimi Moriya ,  Kazuo Sugimoto ,  Yuichi Idehara ,  Kohtaro Asai ,  Tokumichi Murakami

IPC分类号： H04N11/02 ,  H04N7/26 ,  H04N7/46

CPC分类号： H04N19/00 ,  H04N19/103 ,  H04N19/12 ,  H04N19/172 ,  H04N19/186 ,  H04N19/436 ,  H04N19/46 ,  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：US20080170793A1

公开(公告)日：2008-07-17

申请号：US11926593

申请日：2007-10-29

申请人： Yoshihisa YAMADA ,  Shunichi Sekiguchi ,  Yoshimi Moriya ,  Kazuo Sugimoto ,  Yuichi Idehara ,  Kohtaro Asai ,  Tokumichi Murakami

发明人： Yoshihisa YAMADA ,  Shunichi Sekiguchi ,  Yoshimi 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 ,  H04N19/70 ,  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.

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：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：US20100208811A1

公开(公告)日：2010-08-19

申请号：US12771858

申请日：2010-04-30

申请人： Tokumichi MURAKAMI ,  Kohtaro ASAI ,  Yoshihisa YAMADA

发明人： Tokumichi MURAKAMI ,  Kohtaro ASAI ,  Yoshihisa YAMADA

IPC分类号： H04N7/32

CPC分类号： H04N19/543 ,  H04N19/105 ,  H04N19/115 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/127 ,  H04N19/132 ,  H04N19/137 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/20 ,  H04N19/23 ,  H04N19/46 ,  H04N19/537 ,  H04N19/61

摘要： A segmenting section divides an input image into a plurality of segments. A hierarchizing section determines classes of the respective segments according to a predetermined criterion, and produces a class identification signal indicating the classes of the respective segments. A coding section encodes the segmented image signal into code data while changing the value of a coding control parameter for each of the segments in accordance with the class identification signal. Examples of the coding control parameter are a coding time interval and precision of quantization.

公开(公告)号：US20100208812A1

公开(公告)日：2010-08-19

申请号：US12771864

申请日：2010-04-30

申请人： Tokumichi MURAKAMI ,  Kohtaro ASAI ,  Yoshihisa YAMADA

发明人： Tokumichi MURAKAMI ,  Kohtaro ASAI ,  Yoshihisa YAMADA

IPC分类号： H04N7/32

CPC分类号： H04N19/543 ,  H04N19/105 ,  H04N19/115 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/127 ,  H04N19/132 ,  H04N19/137 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/20 ,  H04N19/23 ,  H04N19/46 ,  H04N19/537 ,  H04N19/61

摘要： A segmenting section divides an input image into a plurality of segments. A hierarchizing section determines classes of the respective segments according to a predetermined criterion, and produces a class identification signal indicating the classes of the respective segments. A coding section encodes the segmented image signal into code data while changing the value of a coding control parameter for each of the segments in accordance with the class identification signal. Examples of the coding control parameter are a coding time interval and precision of quantization.

摘要翻译： 分割部分将输入图像分成多个段。 层次化部分根据预定标准确定各个片段的类别，并且产生指示各个片段的类别的类别识别信号。 编码部根据类识别信号，对分割后的图像信号进行编码，同时根据各个片段改变编码控制参数的值。 编码控制参数的示例是编码时间间隔和量化精度。

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。