专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100128995A1 IMAGE CODING METHOD AND IMAGE DECODING METHOD 有权
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20100128995A1
公开(公告)日：2010-05-27
申请号：US12529813
申请日：2009-01-16
申请人： Virginie Drugeon , Thomas Wedi , Torsten Palfner , Hisao Sasai
发明人： Virginie Drugeon , Thomas Wedi , Torsten Palfner , Hisao Sasai
IPC分类号： G06K9/36
CPC分类号： H04N19/00733 , H04N19/11 , H04N19/14 , H04N19/176 , H04N19/51 , H04N19/593
摘要： Provided is an image coding method for performing intra prediction achieving higher coding efficiency. The method for coding image data on a block-by-block basis includes: generating a predicted block by predicting a current block; computing a difference between the current block and the predicted block; coding the difference computed in the computing; decoding the difference coded in the coding; and adding the difference decoded in the decoding to the predicted block to generate a decoded block, wherein the generating includes: detecting an edge in a previously decoded block corresponding to a block adjacent to the current block; and extrapolating or interpolating previously decoded image data corresponding to a pixel included in the block adjacent to the current block, along a direction of the edge detected in the detecting to generate the predicted block.
摘要翻译：提供一种用于执行实现更高编码效率的帧内预测的图像编码方法。逐块地对图像数据进行编码的方法包括：通过预测当前块来生成预测块; 计算当前块和预测块之间的差; 编码计算中计算的差值; 对在编码中编码的差分进行解码; 并将解码中解码的差分加到所述预测块中以产生解码块，其中所述生成包括：检测对应于与所述当前块相邻的块的先前解码块中的边缘; 并且沿着在检测中检测到的边缘的方向外插或内插与包括在与当前块相邻的块中的像素对应的先前解码图像数据，以生成预测块。

2. 发明授权

US08442334B2 Image coding method and image decoding method based on edge direction 有权
标题翻译：基于边缘方向的图像编码方法和图像解码方法
公开(公告)号：US08442334B2
公开(公告)日：2013-05-14
申请号：US12529813
申请日：2009-01-16
申请人： Virginie Drugeon , Thomas Wedi , Torsten Palfner , Hisao Sasai
发明人： Virginie Drugeon , Thomas Wedi , Torsten Palfner , Hisao Sasai
IPC分类号： G06K9/36
CPC分类号： H04N19/00733 , H04N19/11 , H04N19/14 , H04N19/176 , H04N19/51 , H04N19/593
摘要： Provided is an image coding method for performing intra prediction achieving higher coding efficiency. The method for coding image data on a block-by-block basis includes: generating a predicted block by predicting a current block; computing a difference between the current block and the predicted block; coding the difference computed in the computing; decoding the difference coded in the coding; and adding the difference decoded in the decoding to the predicted block to generate a decoded block, wherein the generating includes: detecting an edge in a previously decoded block corresponding to a block adjacent to the current block; and extrapolating or interpolating previously decoded image data corresponding to a pixel included in the block adjacent to the current block, along a direction of the edge detected in the detecting to generate the predicted block.
摘要翻译：提供一种用于执行实现更高编码效率的帧内预测的图像编码方法。逐块地对图像数据进行编码的方法包括：通过预测当前块来生成预测块; 计算当前块和预测块之间的差; 编码计算中计算的差值; 对在编码中编码的差分进行解码; 并将解码中解码的差分加到所述预测块中以产生解码块，其中所述生成包括：检测对应于与所述当前块相邻的块的先前解码块中的边缘; 并且沿着在检测中检测到的边缘的方向外插或内插与包括在与当前块相邻的块中的像素对应的先前解码图像数据，以生成预测块。

3. 发明申请

US20120128066A1 ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE 审中-公开
标题翻译：编码方法，解码方法，编码设备和解码设备
公开(公告)号：US20120128066A1
公开(公告)日：2012-05-24
申请号：US13388368
申请日：2010-08-06
申请人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoto Tanikawa , Matthias Narroschke , Virginie Drugeon , Steffen Wittman
发明人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoto Tanikawa , Matthias Narroschke , Virginie Drugeon , Steffen Wittman
IPC分类号： H04N7/30
CPC分类号： H04N19/42 , H04N19/122 , H04N19/124 , H04N19/129 , H04N19/18 , H04N19/60 , H04N19/91
摘要： A coding method comprises: transforming an input signal; quantizing a transformed output signal; and entropy coding quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal, and wherein, in the generating and outputting, at least one of (i) the first partial signal that is a target signal range for the second transform and (ii) the second transform coefficient is adaptively determined temporally or spatially.
摘要翻译：编码方法包括：变换输入信号; 量化变换的输出信号; 熵编码量化系数，其中所述变换包括：通过使用第一变换系数对所述输入信号执行第一变换来产生第一变换输出信号; 以及通过使用第二变换系数对作为所述第一变换输出信号的一部分的第一部分信号进行第二变换，并且输出包括所生成的第二变换输出信号的变换输出信号和产生第二变换输出信号，生成第二变换输出信号第二部分信号，其是除了第一部分信号之外的第一变换输出信号的剩余部分，并且其中，在生成和输出中，以下中的至少一个：（i）作为第二部分信号的目标信号范围变换和（ii）第二变换系数在时间或空间上自适应地确定。

4. 发明申请

US20110249755A1 MOVING IMAGE CODING METHOD, MOVING IMAGE DECODING METHOD, MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT 审中-公开
标题翻译：移动图像编码方法，移动图像解码方法，移动图像编码装置，移动图像解码装置，程序和集成电路
公开(公告)号：US20110249755A1
公开(公告)日：2011-10-13
申请号：US13139749
申请日：2009-12-16
申请人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Steffen Wittmann , Virginie Drugeon , Matthias Narroschke
发明人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Steffen Wittmann , Virginie Drugeon , Matthias Narroschke
IPC分类号： H04N7/30
CPC分类号： H04N19/61 , H04N19/129
摘要： The coding method includes: transforming pixel values of an image into a two-dimensional matrix including N coefficients in a frequency domain; quantizing the N coefficients to generate N quantized coefficients; generating a one-dimensional sequence based on the two-dimensional matrix and tree structure information that defines a binary tree; and coding the one-dimensional sequence and at least some of the N quantized coefficients. The generating includes: determining, based on the two-dimensional matrix, a reference destination information item indicating positions of the N quantized coefficients in the two-dimensional matrix to be referenced to by the N leaf nodes, respectively (S31); assigning one of a first value and a second value to each of the nodes of the binary tree, based on the two-dimensional matrix and the reference destination information item (S32); and arranging, in preorder, the values assigned to the respective nodes to generate the one-dimensional sequence (S33).
摘要翻译：编码方法包括：将图像的像素值变换为包括频域中的N个系数的二维矩阵; 量化N个系数以产生N个量化系数; 基于定义二叉树的二维矩阵和树结构信息生成一维序列; 以及对所述一维序列和所述N个量化系数中的至少一些进行编码。该生成包括：分别基于二维矩阵确定指示由N个叶节点参考的二维矩阵中的N个量化系数的位置的参考目的地信息项（S31）; 基于所述二维矩阵和所述参考目的地信息项（S32），向所述二叉树的每个节点分配第一值和第二值中的一个值（S32）。以及预先排列分配给各节点的值以生成一维序列（S33）。

5. 发明申请

US20130136178A1 IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT 审中-公开
公开(公告)号：US20130136178A1
公开(公告)日：2013-05-30
申请号：US13814255
申请日：2011-09-28
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Virginie Drugeon
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Virginie Drugeon
IPC分类号： H04N7/26 , H04N7/32
CPC分类号： H04N19/14 , H04N19/103 , H04N19/176 , H04N19/463
摘要： An image decoding method includes: restoring a selected prediction mode used in prediction at a time of coding; and decoding a current block included in coded image data to generate a decoded block, according to the prediction based on the selected prediction mode. The restoring includes: determining a first estimated prediction mode; determining a second estimated prediction mode different from the first estimated prediction mode; and restoring the selected prediction mode based on the mode information, the first estimated prediction mode, and the second estimated prediction mode.

6. 发明申请

US20120134408A1 CODING METHOD, DECODING METHOD, CODING APPARATUS, AND DECODING APPARATUS 审中-公开
标题翻译：编码方法，解码方法，编码装置和解码装置
公开(公告)号：US20120134408A1
公开(公告)日：2012-05-31
申请号：US13388385
申请日：2010-08-06
申请人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Matthias Narroschke , Virginie Drugeon , Steffen Wittmann
发明人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Matthias Narroschke , Virginie Drugeon , Steffen Wittmann
IPC分类号： H04B1/66
CPC分类号： H04N19/42 , H04N19/122 , H04N19/124 , H04N19/129 , H04N19/18 , H04N19/60 , H04N19/91
摘要： A coding method comprises: transforming an input signal; scanning and quantizing coefficient values composing the transformed output signal; and entropy coding the quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal that is the remaining part of the first transformed output signal other than the first partial signal, and a signal corresponding to the second transformed output signal and a signal corresponding to the second partial signal are processed differently in at least one of the scanning, the quantizing, and the entropy coding.
摘要翻译：编码方法包括：变换输入信号; 组合变换输出信号的扫描和量化系数值; 对所述量化系数进行熵编码，其中所述变换包括：通过使用第一变换系数对所述输入信号执行第一变换来生成第一变换输出信号; 以及通过使用第二变换系数对作为所述第一变换输出信号的一部分的第一部分信号进行第二变换，并且输出包括所生成的第二变换输出信号的变换输出信号和产生第二变换输出信号，生成第二变换输出信号作为除了第一部分信号之外的第一变换输出信号的剩余部分的第二部分信号和对应于第二变换输出信号的信号和对应于第二部分信号的信号在至少一个扫描中被不同地处理，量化和熵编码。

7. 发明申请

US20120020580A1 IMAGE CODING METHOD AND IMAGE DECODING METHOD 审中-公开
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20120020580A1
公开(公告)日：2012-01-26
申请号：US13146288
申请日：2010-01-27
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Virginie Drugeon
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Virginie Drugeon
IPC分类号： G06K9/36
CPC分类号： H04N19/14 , H04N19/109 , H04N19/176 , H04N19/61
摘要： In order to achieve higher coding efficiency, suppress coding artifacts, and not to need a large computing amount, an image and video data are coded. Provided is an image coding method of coding image data on a block-by-block basis, and the method includes: coding a current block according to a prediction based on a selected prediction mode (S101); determining an estimated prediction mode from among candidate prediction modes; and outputting the coded current block and mode information for reconstructing the selected prediction mode (S108). The determining includes: detecting an edge (S103); reducing the candidate prediction modes in number based on the detected edge (S105); determining the estimated prediction mode from among the candidate prediction modes reduced in number (S106); and generating the mode information based on the estimated prediction mode and the selected prediction mode (S107).
摘要翻译：为了实现更高的编码效率，抑制编码伪像，并且不需要大的计算量，对图像和视频数据进行编码。提供了一种逐块地对图像数据进行编码的图像编码方法，该方法包括：根据所选择的预测模式根据预测编码当前块（S101）; 从候选预测模式中确定估计预测模式; 并输出用于重构所选择的预测模式的编码的当前块和模式信息（S108）。该确定包括：检测边缘（S103）; 基于检测到的边缘减少候选预测模式数（S105）; 从数量减少的候选预测模式中确定估计预测模式（S106）; 以及基于所估计的预测模式和所选择的预测模式生成模式信息（S107）。

8. 发明授权

US08824817B2 Spatial prediction method, image decoding method, and image coding method 有权
标题翻译：空间预测方法，图像解码方法和图像编码方法
公开(公告)号：US08824817B2
公开(公告)日：2014-09-02
申请号：US13639116
申请日：2011-04-11
申请人： Virginie Drugeon , Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoko Tanikawa
发明人： Virginie Drugeon , Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoko Tanikawa
IPC分类号： G06K9/36 , H04N7/34 , H04N7/26
CPC分类号： H04N19/593 , H04N19/11 , H04N19/136 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/44
摘要： A spatial prediction method capable of reducing the complexity of spatial prediction includes: detecting an edge (E) overlapping the current block by obtaining a horizontal gradient (Gy) and a vertical gradient (Gx) between pixels within a block adjacent to the current block; calculating an integer slope of the edge; determining, for each pixel position within the current block, a sub-pel position being an intersection between (i) a line that has the integer slope and passes through the pixel position and (ii) a boundary of the adjacent block; and predicting, for each pixel position, a pixel value at the pixel position based on a pixel value interpolated in the sub-pel position, wherein the boundary of the adjacent block is a row or a column that is the closest to the current block, among rows or columns of pixels included in the adjacent block.
摘要翻译：能够降低空间预测的复杂度的空间预测方法包括：通过获得与当前块相邻的块内的像素之间的水平梯度（Gy）和垂直梯度（Gx）来检测与当前块重叠的边缘（E）计算边缘的整数斜率; 确定对于当前块中的每个像素位置，子像素位置是（i）具有整数斜率并通过像素位置的线和（ii）相邻块的边界之间的交点; 并且对于每个像素位置，基于在子像素位置内插的像素值来预测像素位置处的像素值，其中相邻块的边界是与当前块最接近的行或列，包括在相邻块中的像素列或像素列中。

9. 发明申请

US20130028530A1 SPATIAL PREDICTION METHOD, IMAGE DECODING METHOD, AND IMAGE CODING METHOD 有权
标题翻译：空间预测方法，图像解码方法和图像编码方法
公开(公告)号：US20130028530A1
公开(公告)日：2013-01-31
申请号：US13639116
申请日：2011-04-11
申请人： Virginie Drugeon , Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoko Tanikawa
发明人： Virginie Drugeon , Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoko Tanikawa
IPC分类号： G06K9/36
CPC分类号： H04N19/593 , H04N19/11 , H04N19/136 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/44
摘要： A spatial prediction method capable of reducing the complexity of spatial prediction includes: detecting an edge (E) overlapping the current block by obtaining a horizontal gradient (Gy) and a vertical gradient (Gx) between pixels within a block adjacent to the current block; calculating an integer slope of the edge; determining, for each pixel position within the current block, a sub-pel position being an intersection between (i) a line that has the integer slope and passes through the pixel position and (ii) a boundary of the adjacent block; and predicting, for each pixel position, a pixel value at the pixel position based on a pixel value interpolated in the sub-pel position, wherein the boundary of the adjacent block is a row or a column that is the closest to the current block, among rows or columns of pixels included in the adjacent block.
摘要翻译：能够降低空间预测的复杂度的空间预测方法包括：通过获得与当前块相邻的块内的像素之间的水平梯度（Gy）和垂直梯度（Gx）来检测与当前块重叠的边缘（E）计算边缘的整数斜率; 确定对于当前块中的每个像素位置，子像素位置是（i）具有整数斜率并通过像素位置的线和（ii）相邻块的边界之间的交点; 并且对于每个像素位置，基于在子像素位置内插的像素值来预测像素位置处的像素值，其中相邻块的边界是最接近当前块的行或列，包括在相邻块中的像素列或像素列中。

10. 发明申请

US20120134412A1 ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE 审中-公开
标题翻译：编码方法，解码方法，编码设备和解码设备
公开(公告)号：US20120134412A1
公开(公告)日：2012-05-31
申请号：US13388179
申请日：2010-08-06
申请人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoko Tanikawa , Steffen Wittmann , Matthias Narroschke , Virginie Drugeon
发明人： Youji Shibahara , Takahiro Nishi , Hisao Sasai , Kyoko Tanikawa , Steffen Wittmann , Matthias Narroschke , Virginie Drugeon
IPC分类号： H04N7/30
CPC分类号： H04N19/42 , H04N19/122 , H04N19/124 , H04N19/129 , H04N19/18 , H04N19/60 , H04N19/91
摘要： A coding method according to the present invention comprises: transforming an input signal to generate a transformed output signal; quantizing the transformed output signal to generate quantized coefficients; and entropy coding the quantized coefficients to generate a coded signal, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including (i) the generated second transformed output signal and (ii) a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal.
摘要翻译：根据本发明的编码方法包括：变换输入信号以产生经变换的输出信号; 量化变换的输出信号以产生量化系数; 对所述量化系数进行熵编码以产生编码信号，其中所述变换包括：通过使用第一变换系数对所述输入信号执行第一变换来产生第一变换输出信号; 以及通过使用第二变换系数对作为所述第一变换输出信号的一部分的第一部分信号执行第二变换，并且输出所述经变换的输出信号，生成第二变换输出信号，所述变换输出信号包括（i）所生成的第二变换输出信号和（ii）作为除了第一部分信号之外的第一变换输出信号的剩余部分的第二部分信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式