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公开(公告)号：US20110228844A1
公开(公告)日：2011-09-22
申请号：US13151311
申请日：2011-06-02
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/147 , H04N19/19 , H04N19/196 , H04N19/463 , H04N19/503 , H04N19/593 , H04N19/82
摘要： According to one embodiment, a moving picture encoding method includes deriving a target filter to be used for a decoded image of a target image to be encoded. The method includes setting a correspondence relationship between target filter coefficient in the target filter and reference filter coefficient in a reference filter in accordance with tap length of the target filter and tap length of the reference filter. The method includes deriving coefficient difference between the target filter coefficient and the reference filter coefficient in accordance with the correspondence relationship. The method includes encoding target filter information including the tap length of the target filter and the coefficient difference.
摘要翻译： 根据一个实施例，运动图像编码方法包括导出要用于待编码的目标图像的解码图像的目标滤波器。 该方法包括根据目标滤波器的抽头长度和参考滤波器的抽头长度来设置目标滤波器中的目标滤波器系数与参考滤波器中的参考滤波器系数之间的对应关系。 该方法包括根据对应关系导出目标滤波器系数与参考滤波器系数之间的系数差。 该方法包括对包括目标滤波器的抽头长度和系数差的目标滤波器信息进行编码。
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公开(公告)号：US20070116125A1
公开(公告)日：2007-05-24
申请号：US11561079
申请日：2006-11-17
申请人： Naofumi Wada , Tomoya Kodama
发明人： Naofumi Wada , Tomoya Kodama
IPC分类号： H04N11/02
CPC分类号： H04N19/615 , H04N19/117 , H04N19/13 , H04N19/137 , H04N19/139 , H04N19/61 , H04N19/63 , H04N19/80 , H04N19/85
摘要： A video encoding method includes subjecting an input video image to motion compensated temporal filtering using a motion compensated temporal filter to produce a low-pass filtered image, quantizing a transform coefficient of the low-pass filtered image, encoding a quantized transform coefficient, calculating a weight to be given to a low-pass filter coefficient of a low-pass filter of the motion compensated temporal filter according to coarseness of quantization and a magnitude of a motion compensated error, and controlling a high band stopping characteristic of the low-pass filter according to the low-pass filter coefficient weighted by the weight, wherein the controlling controls the high band stopping characteristic of the low-pass filter to provide a positive correlation with respect to the quantization parameter and provide a negative correlation with respect to the magnitude of the motion compensated error.
摘要翻译： 视频编码方法包括使用运动补偿时间滤波器对输入视频图像进行运动补偿时间滤波以产生低通滤波图像，量化低通滤波图像的变换系数，对量化变换系数进行编码，计算 根据量化的粗糙度和运动补偿误差的大小，赋予运动补偿时间滤波器的低通滤波器的低通滤波器系数的权重，以及控制低通滤波器的高频带停止特性 根据由权重加权的低通滤波器系数，其中所述控制控制所述低通滤波器的高频带停止特性，以提供与所述量化参数的正相关性，并且相对于所述低通滤波器的幅度 运动补偿误差。
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公开(公告)号：US09167273B2
公开(公告)日：2015-10-20
申请号：US13325856
申请日：2011-12-14
申请人： Saori Asaka , Takeshi Chujoh , Akiyuki Tanizawa , Goki Yasuda , Naofumi Wada , Takashi Watanabe
发明人： Saori Asaka , Takeshi Chujoh , Akiyuki Tanizawa , Goki Yasuda , Naofumi Wada , Takashi Watanabe
IPC分类号： H04N7/12 , H04N19/91 , H04N19/51 , H04N19/513 , H04N19/463 , H04N19/13 , H04N19/593
CPC分类号： H04N19/91 , H04N19/13 , H04N19/463 , H04N19/51 , H04N19/513 , H04N19/593
摘要： According to one embodiment, a video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, includes an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block.
摘要翻译： 根据一个实施例，视频编码装置是用于对视频图像进行运动补偿预测编码的视频编码装置，包括获取模块，用于从与被编码块相邻的编码块获取具有运动矢量的块的可用块 和可用块的数量，从编码的可用块中选择一个选择块的获取/选择模块，选择信息编码器，使用与可用块的数量相对应的代码表，对指定选择块的选择信息进行编码;以及图像 编码器，用于使用所述选择块的运动矢量对待编码块进行运动补偿预测编码。
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公开(公告)号：US08520133B2
公开(公告)日：2013-08-27
申请号：US13331477
申请日：2011-12-20
申请人： Naofumi Wada
发明人： Naofumi Wada
CPC分类号： H04N5/23212
摘要： An imaging apparatus that adjusts focus based on frequency components extracted from an image signal is provided. The apparatus includes a 1st order Infinite Impulse Response (IIR)-filter including a plurality of sample delayers having a plurality of line buffers for buffering and delaying a plurality of samples to sequentially read pixels of the image signal through raster scanning and extracting frequency components of the image signal from the read pixels by using the plurality of sample delayers; and a delay sample number controller for controlling the IIR-filter to match the number of horizontal pixels sequentially read from the image signal through raster scanning to the number of the plurality of samples buffered by the plurality of line buffers.
摘要翻译： 提供了一种基于从图像信号提取的频率分量来调整焦点的成像装置。 该装置包括一级无限脉冲响应（IIR）滤波器，其包括具有多个线缓冲器的多个采样延迟器，用于缓冲和延迟多个采样以通过光栅扫描顺序读取图像信号的像素，并提取频率分量 通过使用多个采样延迟器来自读取像素的图像信号; 以及延迟采样数控制器，用于控制IIR滤波器以将从图像信号通过光栅扫描顺序读取的水平像素的数量与由多个行缓冲器缓冲的多个样本的数量相匹配。
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公开(公告)号：US20100303149A1
公开(公告)日：2010-12-02
申请号：US12854019
申请日：2010-08-10
IPC分类号： H04N7/12
CPC分类号： H04N19/82 , H04N19/117 , H04N19/137 , H04N19/17 , H04N19/176 , H04N19/61
摘要： An image processor to produce a local decoded image corresponding to an input image, a region partitioning module to classify the local decoded image into a plurality of regions using a given parameter, a filter designing module to design a filter coefficient for every classified region, a filter processor to filter the local decoded image according to a corresponding filter coefficient for every classified region, a frame memory to store a filtered image, a predictor to produce a prediction image using a stored image, and an encoder to output a parameter used for classification of the region and information of a filter coefficient every classified region as encoded data are provided.
摘要翻译： 一种用于产生与输入图像相对应的局部解码图像的图像处理器，使用给定参数将局部解码图像分类成多个区域的区域分割模块，为每个分类区域设计滤波器系数的滤波器设计模块， 滤波器处理器根据每个分类区域的相应滤波器系数对本地解码图像进行滤波，存储滤波图像的帧存储器，使用存储图像产生预测图像的预测器和输出用于分类的参数的编码器 并且提供作为编码数据的每个分类区域的滤波器系数的信息。
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公开(公告)号：US20110075732A1
公开(公告)日：2011-03-31
申请号：US12889459
申请日：2010-09-24
IPC分类号： H04N7/50
CPC分类号： H04N19/82 , H04N19/117 , H04N19/14 , H04N19/61
摘要： According to an embodiment, a moving image encoding method includes generating a predicted image of an original image based on a reference image, performing transform and quantization on a prediction error between the original image and the predicted image to obtain a quantized transform coefficient, performing inverse quantization and inverse transform on the quantized transform coefficient to obtain a decoded prediction error, adding the predicted image and the decoded prediction error to generate a local decoded image, setting filter data containing time-space filter coefficients for reconstructing the original image based on the local decoded image and the reference image, performing a time-space filtering process on the local decoded image in accordance with the filter data to generate a reconstructed image, storing the reconstructed image as the reference image, and encoding the filter data and the quantized transform coefficient.
摘要翻译： 根据实施例，运动图像编码方法包括基于参考图像生成原始图像的预测图像，对原始图像和预测图像之间的预测误差进行变换和量化以获得量化变换系数，执行逆 对量化变换系数进行量化和逆变换以获得解码预测误差，将预测图像和解码预测误差相加以生成局部解码图像，设置包含用于基于局部的重建原始图像的时空滤波器系数的滤波数据 解码图像和参考图像，根据滤波数据对本地解码图像执行时空滤波处理，以生成重构图像，存储重构图像作为参考图像，并对滤波数据和量化变换系数进行编码 。
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7.发明申请MOVING IMAGE ENCODING/DECODING METHOD AND APPARATUS WITH FILTERING FUNCTION CONSIDERING EDGES 审中-公开移动图像编码/解码方法和设备考虑滤波器的滤波功能公开(公告)号：US20110069752A1
公开(公告)日：2011-03-24
申请号：US12887549
申请日：2010-09-22
IPC分类号： H04N7/26
摘要： According to one embodiment, a moving image encoding method is disclosed. The method can generate a prediction error image based on a difference between an input moving image and a predicted image. The method can execute transform and quantization on the prediction error image to generate quantized transformation coefficients. The method can generate edge information which indicates an attribute of an edge in a local decoded image corresponding to an encoded image. The method can generate, based on the edge information, control information associated with application of a filter to a decoded image at a decoding side. The method can set filter coefficients for the filter based on the control information. In addition, the method can encode the quantized transformation coefficients and filter coefficient information indicating the filter coefficients to output encoded data.
摘要翻译： 根据一个实施例，公开了一种运动图像编码方法。 该方法可以基于输入运动图像和预测图像之间的差异来生成预测误差图像。 该方法可以对预测误差图像执行变换和量化，以产生量化的变换系数。 该方法可以生成指示对应于编码图像的局部解码图像中的边缘的属性的边缘信息。 该方法可以基于边缘信息，将与滤波器的应用相关联的控制信息生成到解码侧的解码图像。 该方法可以根据控制信息设置滤波器的滤波器系数。 此外，该方法可以对量化的变换系数和表示滤波器系数的滤波器系数信息进行编码以输出编码数据。
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公开(公告)号：US20100118945A1
公开(公告)日：2010-05-13
申请号：US12532057
申请日：2008-03-18
申请人： Naofumi Wada , Takeshi Chujoh , Tadaaki Masuda , Reiko Noda , Akiyuki Tanizawa , Goki Yasuda , Taichiro Shiodera
发明人： Naofumi Wada , Takeshi Chujoh , Tadaaki Masuda , Reiko Noda , Akiyuki Tanizawa , Goki Yasuda , Taichiro Shiodera
IPC分类号： H04N7/32
CPC分类号： H04N19/19 , H04N19/11 , H04N19/119 , H04N19/174 , H04N19/176 , H04N19/593 , H04N19/70
摘要： An video encoding apparatus includes a dividing unit 101 to divide an input image signal into to-be-encoded pixel blocks, a reblocking unit 102 to reblock each of the to-be-encoded pixel blocks to generate a first pixel block and a second pixel block, a first prediction unit 108A to perform prediction for the first pixel block using a first local decoded image corresponding to an encoded pixel to generate a first predicted image, a generation unit to generate a second local decoded image corresponding to the first pixel block using a first prediction error representing the difference between the first pixel block and the first predicted image, a second prediction unit 108B to perform prediction for the second pixel block using the first local decoded image and the second local decoded image to generate a second predicted image, an encoding unit 103-105 to transform and encode the first prediction error and a second prediction error representing the difference between the second pixel block and the second predicted image to generate first encoded data and second encoded data, and a multiplexing unit 111 to multiplex the first encoded data and the second encoded data to generate an encoded bitstream.
摘要翻译： 视频编码装置包括：分割单元101，用于将输入图像信号分割成待编码的像素块;重新锁定单元102，重新锁定待编码的像素块中的每一个以产生第一像素块和第二像素 块，第一预测单元108A，使用与编码像素相对应的第一局部解码图像来执行第一像素块的预测，以生成第一预测图像;生成单元，用于生成与第一像素块对应的第二局部解码图像，所述第二局部解码图像使用 表示第一像素块和第一预测图像之间的差的第一预测误差，使用第一局部解码图像和第二局部解码图像对第二像素块进行预测以生成第二预测图像的第二预测单元108B， 编码单元103-105，用于对第一预测误差进行变换和编码，以及表示第二像素b之间的差的第二预测误差 锁定和第二预测图像以产生第一编码数据和第二编码数据，以及多路复用单元111，用于复用第一编码数据和第二编码数据以生成编码比特流。
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公开(公告)号：US20120154669A1
公开(公告)日：2012-06-21
申请号：US13331477
申请日：2011-12-20
申请人： Naofumi WADA
发明人： Naofumi WADA
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： An imaging apparatus that adjusts focus based on frequency components extracted from an image signal is provided. The apparatus includes a 1st order Infinite Impulse Response (IIR)-filter including a plurality of sample delayers having a plurality of line buffers for buffering and delaying a plurality of samples to sequentially read pixels of the image signal through raster scanning and extracting frequency components of the image signal from the read pixels by using the plurality of sample delayers; and a delay sample number controller for controlling the IIR-filter to match the number of horizontal pixels sequentially read from the image signal through raster scanning to the number of the plurality of samples buffered by the plurality of line buffers, wherein the delay sample number controller commands the IIR-filter to read a sample from each of the plurality of line buffers in a direction perpendicular to a direction of the raster scanning, and perform filtering processing on the read sample.
摘要翻译： 提供了一种基于从图像信号提取的频率分量来调整焦点的成像装置。 该装置包括一级无限脉冲响应（IIR）滤波器，其包括具有多个线缓冲器的多个采样延迟器，用于缓冲和延迟多个采样以通过光栅扫描顺序读取图像信号的像素，并提取频率分量 通过使用多个采样延迟器来自读取像素的图像信号; 以及延迟采样数控制器，用于控制IIR滤波器以将从图像信号通过光栅扫描顺序读取的水平像素的数量与由多个行缓冲器缓冲的多个样本的数量相匹配，其中延迟采样数控制器 命令IIR滤波器在与光栅扫描的方向垂直的方向上从多个行缓冲器中的每一个读取样本，并对读取的样本执行滤波处理。
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公开(公告)号：US20120128073A1
公开(公告)日：2012-05-24
申请号：US13325856
申请日：2011-12-14
申请人： Saori ASAKA , Takeshi Chujoh , Akiyuki Tanizawa , Goki Yasuda , Naofumi Wada , Takashi Watanabe
发明人： Saori ASAKA , Takeshi Chujoh , Akiyuki Tanizawa , Goki Yasuda , Naofumi Wada , Takashi Watanabe
IPC分类号： H04N7/32
CPC分类号： H04N19/91 , H04N19/13 , H04N19/463 , H04N19/51 , H04N19/513 , H04N19/593
摘要： According to one embodiment, a video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, includes an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block.
摘要翻译： 根据一个实施例，视频编码装置是用于对视频图像进行运动补偿预测编码的视频编码装置，包括获取模块，用于从与被编码块相邻的编码块获取具有运动矢量的块的可用块 和可用块的数量，从编码的可用块中选择一个选择块的获取/选择模块，选择信息编码器，使用与可用块的数量相对应的代码表，对指定选择块的选择信息进行编码;以及图像 编码器，用于使用所述选择块的运动矢量对待编码块进行运动补偿预测编码。
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