公开(公告)号：US10432934B2

公开(公告)日：2019-10-01

申请号：US14009659

申请日：2012-06-08

申请人： Hirofumi Aoki ,  Keiichi Chono ,  Yuzo Senda

发明人： Hirofumi Aoki ,  Keiichi Chono ,  Yuzo Senda

IPC分类号： H04N19/124 ,  H04N19/50 ,  H04N19/59

摘要： A video encoding device includes: a quantization step size encoding unit 11 for encoding a quantization step size for controlling quantization granularity; and a quantization step size downsampling unit 12 for downsampling one or more encoded quantization step sizes to generate a quantization step size representative value. The quantization step size encoding unit 11 predicts the quantization step size using the quantization step size representative value.

公开(公告)号：US10154267B2

公开(公告)日：2018-12-11

申请号：US13881467

申请日：2011-11-22

申请人： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

发明人： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

IPC分类号： H04N7/26 ,  H04N19/156 ,  H04N19/503 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/12 ,  H04N19/172 ,  H04N19/184

摘要： A video encoding device includes: transform means 11 for transforming an image block; entropy encoding means 12 for entropy-encoding transformed data of the image block transformed by the transform means 11; PCM encoding means 13 for PCM-encoding the image block; multiplex data selection means 14 for selecting output data of the entropy encoding means 12 or the PCM encoding means 13, in a block of a block size set from the outside; and multiplexing means 15 for embedding a PCM header in a bitstream, in the block of the set from the outside block size.

公开(公告)号：US10021385B2

公开(公告)日：2018-07-10

申请号：US13976308

申请日：2011-12-22

申请人： Keiichi Chono ,  Yuzo Senda ,  Hirofumi Aoki ,  Kenta Senzaki

发明人： Keiichi Chono ,  Yuzo Senda ,  Hirofumi Aoki ,  Kenta Senzaki

IPC分类号： H04N7/32 ,  H04N19/50 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/154 ,  H04N19/82 ,  H04N19/61

CPC分类号： H04N19/117 ,  H04N19/154 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82

摘要： A video encoding device includes a planar prediction unit using planar prediction, and a noise injecting unit for injecting pseudo-random noise into a prediction image of a planar prediction block when a reconstructed prediction error value for planar prediction is less than a threshold determined by the size of the planar prediction block. The video encoding device then uses the pseudo-random noise in linear interpolation for calculating the prediction image, based on the conditions under which a gradient distortion occurs, to suppress the gradient distortion.

公开(公告)号：US20140105282A1

公开(公告)日：2014-04-17

申请号：US14114941

申请日：2012-06-27

申请人： Keiichi Chono ,  Hirofumi Aoki ,  Yuzo Senda

发明人： Keiichi Chono ,  Hirofumi Aoki ,  Yuzo Senda

IPC分类号： H04N19/124 ,  H04N19/184 ,  H04N19/196 ,  H04N19/136

CPC分类号： H04N19/91 ,  H04N19/463 ,  H04N19/50

摘要： A video quantization parameter encoder includes: a prediction unit 11 for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit 12 for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and quantization parameter encoding means 13 for binary arithmetic encoding a first bin indicating whether or not the delta quantization parameter is significant, a second bin indicating whether the delta quantization parameter is positive or negative, and other bins indicating an absolute value of the delta quantization parameter, in the case where the delta quantization parameter is significant.

摘要翻译： 视频量化参数编码器包括：预测单元11，用于从过去的重建量化参数产生预测量化参数; 计算单元12，用于从量化参数和预测量化参数产生增量量化参数; 以及量化参数编码装置13，用于二进制算术编码表示增量量化参数是否有效的第一个bin，指示增量量化参数是正还是负的第二bin，以及指示增量量化参数的绝对值的其他bin 在delta量化参数有效的情况下。

公开(公告)号：US20130322542A1

公开(公告)日：2013-12-05

申请号：US13977756

申请日：2012-01-05

申请人： Kenta Senzaki ,  Yuzo Senda ,  Keiichi Chono ,  Hirofumi Aoki

发明人： Kenta Senzaki ,  Yuzo Senda ,  Keiichi Chono ,  Hirofumi Aoki

IPC分类号： H04N7/36

CPC分类号： H04N19/139 ,  H04N19/109 ,  H04N19/119 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/65 ,  H04N19/70 ,  H04N19/91

摘要： A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.

摘要翻译： 视频编码装置包括：编码控制装置11，用于基于允许具有预定区域的图像块的运动矢量的最大数目（PA）和数字（PB）来控制要编码的CU的PU间分配类型; 包含在具有预定区域的图像块中的编码图像块的运动矢量。 视频解码装置包括：解码控制装置，用于根据对具有预定区域的图像块所允许的运动矢量的最大数目（PA）和数字（PB）的数量（PB），控制要解码的CU的PU间分配类型 包含在具有预定区域的图像块中的解码图像块的运动矢量。

公开(公告)号：US20130259121A1

公开(公告)日：2013-10-03

申请号：US13992610

申请日：2011-12-15

申请人： Keiichi Chono

发明人： Keiichi Chono

IPC分类号： H04N7/26

CPC分类号： H04N19/176 ,  H04N19/11 ,  H04N19/14 ,  H04N19/423 ,  H04N19/593 ,  H04N19/61

摘要： A video encoding device includes an intra prediction unit for performing intra prediction on an image, a frequency transform/quantization unit for frequency transform and quantizing a prediction error based on the intra prediction performed by the intra prediction unit, an entropy encoding unit for entropy-encoding a transform quantization value generated by the frequency transform/quantization unit, an edge detection unit for detecting edge information on an image block of the minimum frequency-transform block size of the image, and edge information storage unit for storing the edge information detected by the edge detection unit.

摘要翻译： 视频编码装置包括用于对图像执行帧内预测的帧内预测单元，用于频率变换的频率变换/量化单元，并且基于由帧内预测单元执行的帧内预测量化预测误差;熵编码单元， 编码由频率变换/量化单元生成的变换量化值，边缘检测单元，用于检测图像的最小频率变换块大小的图像块的边缘信息;以及边缘信息存储单元，用于存储由图像块检测到的边缘信息 边缘检测单元。

公开(公告)号：US20130121407A1

公开(公告)日：2013-05-16

申请号：US13809353

申请日：2011-09-12

申请人： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

发明人： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

IPC分类号： H04N7/26

CPC分类号： H04N19/14 ,  H04N19/117 ,  H04N19/154 ,  H04N19/169 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86 ,  H04N19/865

摘要： A video encoding device and a video decoding device prevent an increase in the number of lines of a reference line buffer in a pseudo random noise injection process. The video encoding device includes: an inverse quantization unit for inverse-quantizing a quantization index to obtain a quantization representative value; an inverse frequency transform unit for inverse-transforming the quantization representative value obtained by the inverse quantization unit, to obtain a reconstructed image block; and an asymmetrical distortion removal filter unit for injecting pseudo random noise to an area asymmetrical about a boundary of the reconstructed image block.

摘要翻译： 视频编码装置和视频解码装置防止在伪随机噪声注入过程中参考线缓冲器的行数增加。 视频编码装置包括：逆量化单元，用于对量化索引进行逆量化以获得量化代表值; 逆频率变换单元，用于逆变换由所述逆量化单元获得的量化代表值，以获得重构图像块; 以及用于将伪随机噪声注入到关于重建图像块的边界不对称的区域的非对称失真去除滤波器单元。

公开(公告)号：US20130114690A1

公开(公告)日：2013-05-09

申请号：US13512824

申请日：2010-10-27

申请人： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

发明人： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

IPC分类号： H04N7/26 ,  H04N7/32

CPC分类号： H04N19/61 ,  H04N19/82 ,  H04N19/86

摘要： To efficiently reduce contour and stair-step artifacts.A video encoding device includes an inverse quantization means for inversely quantizing a quantization index to obtain a quantization representative value, an inverse frequency transformation means for inversely converting the quantization representative value obtained by the inverse quantization means to obtain a reconstructed image block, and a noise inject means for determining a pseudorandom noise injecting position based on information on extension of the reconstructed image block and injecting a pseudorandom noise into an image at the pseudorandom noise injecting position.

摘要翻译： 有效减少轮廓和阶梯的人造物。 视频编码装置包括用于逆量化量化指标以获得量化代表值的逆量化装置，用于逆变换由逆量化装置获得的量化代表值以获得重构图像块的反频率变换装置，以及噪声 注入装置，用于基于关于重建图像块的扩展的信息确定伪随机噪声注入位置，并将伪随机噪声注入到伪随机噪声注入位置的图像中。

公开(公告)号：US08290064B2

公开(公告)日：2012-10-16

申请号：US12282338

申请日：2007-03-09

申请人： Keiichi Chono

发明人： Keiichi Chono

IPC分类号： H04N7/12

CPC分类号： H04N19/18 ,  H04N19/11 ,  H04N19/115 ,  H04N19/149 ,  H04N19/152 ,  H04N19/154 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/61

摘要： An intra-forecast mode selecting method is provided to select an intra-forecast mode suitable for intra-forecast coding of a coding subject block from intra-forecast modes including a DC intra-forecasting mode based on a difference in forecast between a coding amount of the intra-forecast mode and an intra-forecast. The intra-forecast mode selecting method is comprised of intra-forecast mode selecting means for correcting the coding amount of the DC intra-forecast mode to be equal to that of the other intra-forecast or less to select an intra-forecast mode based on a difference in forecast between the coding amount of the corrected DC intra-forecast and the intra-forecast.

摘要翻译： 提供了一种帧内预测模式选择方法，用于基于预测编码量之间的预测差异，从包括DC帧内预测模式的帧内预测模式中选择适合于编码对象块的帧内预测编码的帧内预测模式 内部预测模式和内部预测。 帧内预测模式选择方法包括帧内预测模式选择装置，用于将DC帧内预测模式的编码量校正为等于另一帧内预测的编码量，或者更小以选择基于 经校正的DC帧内预测的编码量与帧内预测之间的预测差异。

公开(公告)号：US07835440B2

公开(公告)日：2010-11-16

申请号：US10503317

申请日：2003-04-16

申请人： Keiichi Chono

发明人： Keiichi Chono

IPC分类号： H04N7/12 ,  G06K9/36

CPC分类号： H04N19/523 ,  H04N19/105 ,  H04N19/117 ,  H04N19/149 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82

摘要： The present invention seeks to provide a solution to the problem that motion compensation in an encoding method of the prior art involves decimal point picture element interpolation by means of fixed filters and therefore cannot realize interpolation of decimal point picture elements that accords with the nature and bit rate of a moving picture. A filter/interpolated image memory (101) interpolates picture elements of decimal point positions in a reference image by means of a plurality of sets of filters, a motion vector/filter detector (102) detects the combination of filter and motion vector that realizes the highest encoding efficiency, a prediction value generator (103) uses the detected combination of filter and motion vector to generate a prediction value, and motion vector/filter detector (102) supplies as output the information of the filter and information of the motion vector that generated the prediction value; whereby decimal point picture element interpolation that corresponds to the nature and bit rate of the moving picture can be realized and encoding of a moving picture can be improved.

摘要翻译： 本发明寻求解决现有技术的编码方法中的运动补偿涉及通过固定滤波器进行小数点图像单元插值的问题的解决方案，因此不能实现符合自然和位的小数点图像元素的插值 运动图片的速度。 滤波器/内插图像存储器（101）通过多组滤波器内插参考图像中的小数点位置的图像元素，运动矢量/滤波器检测器（102）检测滤波器和内插图像存储器（101）的组合， 最高的编码效率，预测值发生器（103）使用检测到的滤波器和运动矢量的组合来产生预测值，并且运动矢量/滤波器检测器（102）作为输出提供滤波器的信息和运动矢量的信息， 产生预测值; 由此可以实现与运动图像的性质和比特率相对应的小数点图像元素插值，并且可以提高运动图像的编码。