公开(公告)号：US09288485B2

公开(公告)日：2016-03-15

申请号：US13810586

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： H04N19/82 ,  H04N19/176 ,  H04N19/117 ,  H04N19/103 ,  H04N19/159 ,  H04N19/182 ,  H04N19/80 ,  H04N19/86

CPC分类号： H04N19/103 ,  H04N19/117 ,  H04N19/159 ,  H04N19/182 ,  H04N19/80 ,  H04N19/86

摘要： When injecting pseudo random noise to an area centered on a block boundary, a video encoding device and a video decoding device prevent injection of pseudo random noise to an area including a reference image for subsequent planar mode filtering, in order to suppress linear artifacts. 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 adaptive distortion removal filter unit for injecting pseudo random noise to an area centered on a boundary of the reconstructed image block, wherein the adaptive distortion removal filter unit does not inject pseudo random noise to an area including a reference image for planar mode filtering.

摘要翻译： 当将伪随机噪声注入到以块边界为中心的区域时，视频编码装置和视频解码装置防止将伪随机噪声注入到包括用于随后的平面模式滤波的参考图像的区域上，以便抑制线性伪影。 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以所述重构图像块的边界为中心的区域的自适应失真去除滤波器单元，其中所述自适应失真去除滤波器单元不向包括用于平面模式滤波的参考图像的区域注入伪随机噪声。

公开(公告)号：US09258560B2

公开(公告)日：2016-02-09

申请号：US13808829

申请日：2011-06-21

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

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

IPC分类号： H04N11/02 ,  H04N19/50 ,  H04N19/46 ,  H04N19/593 ,  H04N19/426

CPC分类号： H04N19/50 ,  H04N19/426 ,  H04N19/46 ,  H04N19/593

摘要： In the present invention, reconstructed images for prediction are stored in uncompressed reference picture memory and compressed reference picture memory. A video decoder stores in uncompressed reference picture memory a reconstructed image of a frame to be decoded which has been generated on the basis of a prediction, and among reconstructed images which have been stored in the uncompressed reference picture memory, compresses a reconstructed image that will not be used for prediction of the frame to be decoded and stores the image in the compressed reference picture memory. Using the reconstructed images which are stored in the uncompressed reference picture memory and the compressed reference picture memory, the video bitstream is decoded into a video.

摘要翻译： 在本发明中，用于预测的重建图像被存储在未压缩参考图像存储器和压缩参考图像存储器中。 视频解码器在未压缩的参考图像存储器中存储已经基于预测生成的要解码的帧的重构图像，以及已经存储在未压缩参考图像存储器中的重建图像之中，压缩重建图像， 不用于预测要解码的帧，并将图像存储在压缩参考图像存储器中。 使用存储在未压缩参考图像存储器和压缩参考图像存储器中的重建图像，将视频比特流解码成视频。

公开(公告)号：US20130136177A1

公开(公告)日：2013-05-30

申请号：US13808829

申请日：2011-06-21

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

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

IPC分类号： H04N7/26 ,  H04N7/32

CPC分类号： H04N19/50 ,  H04N19/426 ,  H04N19/46 ,  H04N19/593

摘要： In the present invention, reconstructed images for prediction are stored in uncompressed reference picture memory and compressed reference picture memory. A video decoder stores in uncompressed reference picture memory a reconstructed image of a frame to be decoded which has been generated on the basis of a prediction, and among reconstructed images which have been stored in the uncompressed reference picture memory, compresses a reconstructed image that will not be used for prediction of the frame to be decoded and stores the image in the compressed reference picture memory. Using the reconstructed images which are stored in the uncompressed reference picture memory and the compressed reference picture memory, the video bitstream is decoded into a video.

摘要翻译： 在本发明中，用于预测的重建图像被存储在未压缩参考图像存储器和压缩参考图像存储器中。 视频解码器在未压缩的参考图像存储器中存储已经基于预测生成的要解码的帧的重构图像，以及已经存储在未压缩参考图像存储器中的重建图像之中，压缩重建图像， 不用于预测要解码的帧，并将图像存储在压缩参考图像存储器中。 使用存储在未压缩参考图像存储器和压缩参考图像存储器中的重建图像，将视频比特流解码成视频。

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：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：US10742991B2

公开(公告)日：2020-08-11

申请号：US15146005

申请日：2016-05-04

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： H04N19/156 ,  H04N19/176 ,  H04N19/172 ,  H04N19/503 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/12 ,  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：US20120307898A1

公开(公告)日：2012-12-06

申请号：US13512270

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： H04N7/32

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

摘要： To efficiently reduce contour and stair-step artifacts.A video encoding device includes a reconstruction means for adding an intra prediction signal or an inter-frame prediction signal to a reconstructed predictive error image block obtained by an inverse frequency transformation means to obtain a reconstructed image block, a noise inject means for injecting a pseudorandom noise into a reconstructed image picture, a Wiener filter means for applying a Wiener filter to the reconstructed image picture with a pseudorandom noise injected, and a reference image storage means for storing the reconstructed image picture to which the Wiener filter is applied as a reference image picture for inter-frame prediction.

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：重建装置，用于将帧内预测信号或帧间预测信号添加到由逆频率变换装置获得的重建预测误差图像块以获得重构图像块;噪声注入装置，用于注入伪随机数 将噪声转换成重建图像图像，维纳滤波器装置，用于将注入的伪随机噪声的维纳滤波器应用于重建图像图像;以及参考图像存储装置，用于存储施加维纳滤波器的重构图像图像作为参考图像 图片用于帧间预测。

公开(公告)号：US09210427B2

公开(公告)日：2015-12-08

申请号：US13695461

申请日：2011-07-08

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： H04N7/12 ,  H04N19/61 ,  H04N19/176 ,  H04N19/46 ,  H04N19/186 ,  H04N19/156 ,  H04N19/12

CPC分类号： H04N19/44 ,  H04N19/00781 ,  H04N19/12 ,  H04N19/156 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91

摘要： A video encoding device includes: pixel bit length increasing means for increasing a pixel bit length of an input image based on pixel bit length increase information; transform means for transforming output data of the pixel bit length increasing means; entropy encoding means for entropy-encoding output data of the transform means; non-compression encoding means for non-compression-encoding input data; multiplexed data selection means for selecting output data of the entropy encoding means or output data of the non-compression encoding means; and multiplexing means for multiplexing the pixel bit length increase information in a bitstream, wherein a pixel bit length of an image corresponding to the output data of the entropy encoding means and a pixel bit length of an image corresponding to the output data of the non-compression encoding means are different from each other.

摘要翻译： 视频编码装置包括：像素比特长度增加装置，用于基于像素比特长度增加信息增加输入图像的像素比特长度; 变换装置，用于变换像素位长度增加装置的输出数据; 熵编码装置，用于对变换装置的输出数据进行熵编码; 用于非压缩编码输入数据的非压缩编码装置; 多路复用数据选择装置，用于选择熵编码装置的输出数据或输出非压缩编码装置的数据; 以及复用装置，用于将比特流中的像素比特长度增加信息进行多路复用，其中与熵编码装置的输出数据相对应的图像的像素比特长度和与非熵编码装置的输出数据相对应的图像的像素比特长度， 压缩编码装置彼此不同。

公开(公告)号：US20130223514A1

公开(公告)日：2013-08-29

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

CPC分类号： H04N19/156 ,  H04N19/12 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/46 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61

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.

摘要翻译： 视频编码装置包括：变换装置11，用于变换图像块; 熵编码装置12，用于熵编码由变换装置11变换的图像块的变换数据; 用于对图像块进行PCM编码的PCM编码装置13; 用于从外部设置的块大小的块中选择熵编码装置12或PCM编码装置13的输出数据的多路复用数据选择装置14; 以及用于在比特流中将PCM头部从外部块大小嵌入到组的块中的多路复用装置15。