公开(公告)号：US10063852B2

公开(公告)日：2018-08-28

申请号：US14004460

申请日：2012-04-04

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： H04N7/32 ,  H04N19/50 ,  H04N19/105 ,  H04N19/593 ,  H04N19/11 ,  H04N19/186 ,  H04N19/157 ,  H04N19/44

CPC分类号： H04N19/10 ,  H04N19/105 ,  H04N19/11 ,  H04N19/157 ,  H04N19/186 ,  H04N19/44 ,  H04N19/593

摘要： Provided is an image processing apparatus including a decoding section that decodes a luminance component and a color difference component of a block inside a coding unit in an order of the luminance component and the color difference component in each block.

公开(公告)号：US09317933B2

公开(公告)日：2016-04-19

申请号：US14112788

申请日：2012-04-27

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： G06K9/36 ,  G06K9/00 ,  G06T9/00 ,  H04N19/117 ,  H04N19/157 ,  H04N19/17 ,  H04N19/86 ,  H04N19/124

CPC分类号： G06T9/00 ,  H04N19/117 ,  H04N19/124 ,  H04N19/157 ,  H04N19/17 ,  H04N19/86

摘要： The present technique relates to image processing devices and methods for enabling more appropriate removals of block distortions. When the difference between the quantization parameter QPc of a current region C and the quantization parameter QPN of a neighboring region N is determined to be larger than a predetermined threshold value, a deblocking filter adjusts the deblocking filtering operation so that stronger filtering is performed on a boundary between the current region and the neighboring region. This disclosure can be applied to image processing devices, for example.

摘要翻译： 本技术涉及图像处理装置和用于实现块失真的更适当清除的方法。 当确定当前区域C的量化参数QPc与相邻区域N的量化参数QPN之间的差大于预定阈值时，解块滤波器调整去块滤波操作，以便对 当前区域和相邻区域之间的边界。 本公开可以应用于例如图像处理装置。

公开(公告)号：US09153040B2

公开(公告)日：2015-10-06

申请号：US14003253

申请日：2012-04-04

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： G06K9/00 ,  G06T9/00 ,  H04N19/105 ,  H04N19/593 ,  H04N19/186 ,  H04N19/157

CPC分类号： H04N19/136 ,  G06T9/004 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

摘要： Provided is an image processing apparatus including a prediction section that generates a predicted value of a color difference component of a pixel of an image to be decoded by using a function of a value of a corresponding luminance component, a coefficient calculation section that calculates a coefficient of the function used by the prediction section by referencing a pixel around a block to which the pixel belongs, and a controller that controls a ratio of a number of reference pixels used by the coefficient calculation section to a block size of the block.

摘要翻译： 提供一种图像处理装置，包括：预测部，其通过使用相应的亮度分量的值来生成要解码的图像的像素的色差分量的预测值;计算系数 通过参考像素所属的块周围的像素，以及控制器，其将由系数计算部使用的参考像素的数量与块的块大小进行比较来控制预测部使用的功能。

公开(公告)号：US09077989B2

公开(公告)日：2015-07-07

申请号：US13581960

申请日：2011-03-30

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： G06K9/36 ,  G06K9/40 ,  H04N19/117 ,  H04N19/176 ,  H04N19/134 ,  H04N19/86

CPC分类号： G06T5/00 ,  H04N19/117 ,  H04N19/134 ,  H04N19/176 ,  H04N19/80 ,  H04N19/86

摘要： A deblocking filter applies filtering to reduce blocking artifacts from an encoded stream in which image data has been encoded in individual blocks. A filter strength adjuster adjusts the filter strength according to block sizes of the predictive image data. For example, during image encoding, the filter strength is adjusted according to the block size of the predictive image data yielding the best encoding efficiency generated using filtered and decoded image data. Filtering may also be applied to remove blocking artifacts from decoded image data during image decoding, with the filter strength being adjusted according to the block sizes of the predictive image data. Decoded images with favorable image quality are obtained, even in the case of using extended macroblock sizes.

摘要翻译： 去块滤波器应用滤波以减少图像数据已经在各个块中被编码的编码流中的块伪影。 滤光强度调节器根据预测图像数据的块大小来调节滤光器强度。 例如，在图像编码期间，根据预测图像数据的块大小来调整滤波器强度，产生使用滤波和解码的图像数据产生的最佳编码效率。 还可以应用滤波以在图像解码期间从解码图像数据中去除块伪影，其中根据预测图像数据的块大小来调整滤波器强度。 即使在使用扩展宏块大小的情况下也能获得具有良好图像质量的解码图像。

公开(公告)号：US20140044170A1

公开(公告)日：2014-02-13

申请号：US14113882

申请日：2012-05-09

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： H04N7/36 ,  H04N7/26

CPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/523 ,  H04N19/61

摘要： The present technology relates to an image processing device and a method capable of improving encoding efficiency. In a weighted prediction process performed in an image encoding process or in an image decoding process, a motion compensation unit that performs motion compensation of sub-pixel accuracy for each of L0 and L1, a weighted addition unit that applies weighted addition to arithmetic operation results by the motion compensation unit, and a rounding processing unit that suppresses a decrease in arithmetic operation accuracy by performing a necessary rounding process once with respect to an arithmetic operation result by the weighted addition unit are provided. The present disclosure can be applied to an image processing device.

摘要翻译： 本技术涉及能够提高编码效率的图像处理装置和方法。 在图像编码处理或图像解码处理中进行的加权预测处理中，对于L0和L1各自进行子像素精度的运动补偿的运动补偿单元，对算术运算结果应用加权相加的加权相加单元 并且提供通过对加权相加单元进行算术运算结果执行一次所需的舍入处理来抑制运算精度降低的舍入处理单元。 本公开可以应用于图像处理装置。

公开(公告)号：US08634472B2

公开(公告)日：2014-01-21

申请号：US13489089

申请日：2012-06-05

申请人： Kazushi Sato ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki

IPC分类号： H04N7/12

CPC分类号： H04N19/109 ,  H04N7/01 ,  H04N11/042 ,  H04N11/046 ,  H04N19/105 ,  H04N19/112 ,  H04N19/124 ,  H04N19/136 ,  H04N19/139 ,  H04N19/152 ,  H04N19/16 ,  H04N19/176 ,  H04N19/186 ,  H04N19/36 ,  H04N19/44 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/523 ,  H04N19/57

摘要： An image decoding method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes scaling, when a reference field has a different parity from a current field for motion compensation and when the decoded image signal is in a format in which the number of chroma pixels is vertically different from the number of luma pixels, a chroma motion vector of the chroma signal according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.

公开(公告)号：US08625924B2

公开(公告)日：2014-01-07

申请号：US12373623

申请日：2007-07-13

申请人： Junichi Tanaka ,  Kazushi Sato ,  Yoichi Yagasaki ,  Kazuhiro Ishigaya

发明人： Junichi Tanaka ,  Kazushi Sato ,  Yoichi Yagasaki ,  Kazuhiro Ishigaya

IPC分类号： G06K9/36 ,  G06K9/40

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/154 ,  H04N19/80 ,  H04N19/82

摘要： An image processing apparatus capable of improving image quality, includes a deblocking filter that adjusts a plurality of parameters related to deblocking processing on the basis of activity of an image calculated by an activity calculation section, the total sum of orthogonal transformation coefficients of the image calculated by an orthogonal transformation section, complexity of the image calculated by the rate control unit, or the total sum of prediction errors of the image calculated by a prediction error addition unit.

摘要翻译： 能够提高图像质量的图像处理装置包括去块滤波器，该去块滤波器根据由活动性计算部计算出的图像的活动度来调整与解块处理有关的多个参数，计算出的图像的正交变换系数的总和 通过正交变换部分，由速率控制单元计算的图像的复杂度或由预测误差加法单元计算的图像的预测误差的总和。

公开(公告)号：US20130287309A1

公开(公告)日：2013-10-31

申请号：US13977573

申请日：2011-12-26

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： G06T9/20

CPC分类号： G06T9/20 ,  H04N19/119 ,  H04N19/162 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

摘要： The present technology includes a setting unit that sets the position of a boundary of image data in an upper hierarchy unit to be in a lower hierarchy unit that is lower than the upper hierarchy unit when the image data is encoded in a unit of encoding with a hierarchical structure; an encoding unit that generates encoded data by encoding the image data according to the position of the boundary set by the setting unit; and an addition unit that adds information on the image data in the upper hierarchy unit before encoded data in an intermediate hierarchy unit that includes the boundary set by the setting unit, is lower than the upper hierarchy unit, and is higher than the lower hierarchy unit. The present technology can be applied to, for example, an image processing device.

摘要翻译： 本技术包括设置单元，当以图像数据编码为单位对图像数据进行编码时，将上层单元中的图像数据的边界的位置设置为低于上层单元的下层单元 层次结构; 编码单元，其通过根据由设置单元设置的边界的位置对图像数据进行编码来生成编码数据; 以及附加单元，其在包括由设置单元设置的边界的中间层单元中的编码数据之前的上层单元中的图像数据的信息低于上层单元，并且高于下层单元 。 本技术可以应用于例如图像处理装置。

公开(公告)号：US20130259129A1

公开(公告)日：2013-10-03

申请号：US13993443

申请日：2011-12-13

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： H04N7/36

CPC分类号： H04N19/513

摘要： The present disclosure relates an image processing device and method enabling merging blocks in the temporal direction in motion compensation. Provided is an image processing device including a determining unit configured to determine whether or not motion information of a current block which is to be processed, and motion information of a co-located block situated in the temporal periphery of the current block, match, and a merge information generating unit configured to, in the event that determination is made by the determining unit that these match, generate temporal merge information specifying the co-located block as a block with which the current block is to be temporally merged.

摘要翻译： 本公开涉及一种能够在运动补偿中在时间方向上合并块的图像处理装置和方法。 提供了一种图像处理装置，包括：确定单元，被配置为确定要处理的当前块的运动信息和位于当前块的时间周边中的同位置块的运动信息是否匹配;以及 合并信息生成单元，被配置为在所述确定单元确定所述匹配的情况下，将指定所述同位置块的时间合并信息生成作为当前块要临时合并的块。

公开(公告)号：US20130208805A1

公开(公告)日：2013-08-15

申请号：US13880256

申请日：2011-10-17

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： H04N7/26

CPC分类号： H04N19/52 ,  H04N19/56 ,  H04N19/61 ,  H04N19/96

摘要： A high encoding efficiency is to be realized. A block selection processing unit 33 selects a block from adjacent motion compensation blocks, in accordance with the block size of the motion compensation block being encoded and the block sizes of the encoded adjacent motion compensation blocks adjacent to this motion compensation block. A predicted motion vector information generation unit 34 generates predicted motion vector information about the motion compensation block being encoded, by using the motion vector information about the selected block. A motion prediction/compensation unit 32 performs an inter prediction by using the predicted motion vector information generated at the predicted motion vector information generation unit 34, and generates predicted image data.

摘要翻译： 要实现高编码效率。 块选择处理单元33根据正在编码的运动补偿块的块大小和与该运动补偿块相邻的编码的相邻运动补偿块的块大小，从相邻运动补偿块中选择块。 预测运动矢量信息生成部34通过使用关于所选择的块的运动矢量信息，生成关于被编码的运动补偿块的预测运动矢量信息。 运动预测/补偿单元32通过使用在预测运动矢量信息生成单元34生成的预测运动矢量信息来进行帧间预测，并生成预测图像数据。