公开(公告)号：US20220124369A1

公开(公告)日：2022-04-21

申请号：US17564629

申请日：2021-12-29

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/593 ,  H04N19/184 ,  H04N19/86 ,  H04N19/182 ,  H04N19/117 ,  H04N19/159 ,  H04N19/82 ,  G06V10/75 ,  H04N19/11

摘要： The present disclosure relates to an image processing apparatus and an image processing method capable of suppressing a deterioration in image quality. The image processing apparatus includes a threshold value setting unit which sets a threshold value for identifying a feature of neighboring pixels of a current block in an intra prediction process in encoding of image data according to a bit depth of the image data and a filtering processing unit which performs a filtering process on the neighboring pixels by using a filter according to the feature of the neighboring pixels identified by using the threshold value set by the threshold value setting unit. The present disclosure may be applied to, for example, an image processing apparatus.

公开(公告)号：US20200320746A1

公开(公告)日：2020-10-08

申请号：US16896766

申请日：2020-06-09

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： G06T9/00 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/117 ,  H04N19/154 ,  H04N19/182 ,  H04N19/82 ,  H04N19/523 ,  H04N19/40 ,  H04N19/44

摘要： The present invention relates to an image processing device and method which enable encoding efficiency in intra prediction to be improved. In the event that the optimal intra prediction mode is mode 0, adjacent pixels to be used for prediction of the current block are pixels A0, A1, A2, and A3. According to these pixels and a 6-tap FIR filter, pixels a−0.5, a+0.5, and so on with ½ pixel precision are generated, and further, pixels a−0.75, a−0.25, a+0.25, and a+0.75 with ¼ pixel precision are generated by linear interpolation. Subsequently, the optimal shift amount is determined with a value of −0.75 through +0.75 that is phase difference between an integer pixel and generated fractional pixel precision serving as a candidate of the shift amount in the horizontal direction. The present invention may be applied to an image encoding device which performs encoding using the H.264/AVC system, for example.

公开(公告)号：US20190306514A1

公开(公告)日：2019-10-03

申请号：US16401317

申请日：2019-05-02

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/174 ,  H04N19/593 ,  H04N19/13 ,  H04N19/52 ,  H04N19/139 ,  H04N19/70

摘要： The present disclosure relates to an image processing device and method whereby higher encoding efficiency can be achieved. A prediction motion vector generating unit 76 uses peripheral motion vector information supplied thereto to generate multiple types of prediction motion vector information, and supplies each prediction motion vector information and code numbers assigned to the prediction motion vector information by a code number assigning unit 77 to a motion prediction/compensation unit 75. The code number assigning unit 77 supplies code number assignation information indicating which code numbers have been assigned to which prediction motion vector information, to a lossless encoding unit 66. The present technology can be applied to an image encoding device which performs encoding based on the H.264/AVC format, for example.

公开(公告)号：US20190028704A1

公开(公告)日：2019-01-24

申请号：US16138301

申请日：2018-09-21

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/117 ,  H04N19/86 ,  H04N19/82 ,  H04N19/176 ,  H04N19/134 ,  H04N19/14

摘要： An image processing device and method capable of improving image quality of a decoded image and of an image to be referenced from now on with motion compensation. A mosquito noise filter is provided within a motion compensation loop including at least a computing unit, an orthogonal transform unit, a quantization unit, an inverse quantization unit, an inverse orthogonal transform unit, a computing unit, a frame memory, a switch, a motion prediction/compensation unit, and a prediction image selecting unit. The mosquito noise filter uses information from the orthogonal transform unit, quantization unit, and a lossless encoding unit to determine whether to perform filter processing for removing mosquito noise. The device and method may be applied to an image encoding device for performing encoding with H.264/AVC format, for example.

公开(公告)号：US20180324428A1

公开(公告)日：2018-11-08

申请号：US16032669

申请日：2018-07-11

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/124 ,  H04N19/50 ,  H04N19/126 ,  H04N19/17 ,  H04N19/593 ,  H04N19/61 ,  H04N19/463 ,  G06T9/00

CPC分类号： H04N19/124 ,  G06T9/004 ,  H04N19/126 ,  H04N19/17 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61

摘要： An image processing apparatus and a method for improving the coding efficiency for a quantization parameter are provided. The method includes steps of setting a predicted quantization parameter for a current coding unit by using multiple quantization parameters which are set for multiple surrounding coding units located around the current coding unit which is target of coding processing, and setting a difference quantization parameter indicating a difference value between the quantization parameter which is set for the current coding unit and the predicted quantization parameter.

公开(公告)号：US20170078685A1

公开(公告)日：2017-03-16

申请号：US15361165

申请日：2016-11-25

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/44 ,  H04N19/136 ,  H04N19/70 ,  H04N19/176

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：US20160286218A1

公开(公告)日：2016-09-29

申请号：US15034007

申请日：2014-12-12

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/132 ,  H04N19/187 ,  H04N19/176 ,  H04N19/172 ,  H04N19/174

CPC分类号： H04N19/132 ,  H04N19/105 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/503 ,  H04N19/70

摘要： The present disclosure relates to an image encoding device and method, and an image decoding device and method, which are capable of performing an inter-layer associated process smoothly. An enhancement layer image encoding unit sets, when a decoded image of another layer is a reference picture, inter-layer information indicating whether or not the picture is a skip picture or inter-layer information indicating a layer dependency relation when 64 or more layers are included. The enhancement layer image encoding unit performs motion prediction based on the set inter-layer information, and encodes the inter-layer information. The present disclosure can be applied to, for example, an image encoding device that performs a scalable encoding process on image data and an image decoding device that performs a scalable decoding process on image data.

摘要翻译： 本公开涉及能够平滑地执行层间关联处理的图像编码装置和方法以及图像解码装置和方法。 增强层图像编码单元当另一层的解码图像是参考图像时，设置指示图像是跳过图像的层间信息还是当64层以上时表示层依赖关系的层间信息 包括。 增强层图像编码单元基于所设置的层间信息进行运动预测，并对层间信息进行编码。 本公开可以应用于例如对图像数据执行可伸缩编码处理的图像编码装置和对图像数据执行可伸缩解码处理的图像解码装置。

公开(公告)号：US20150334392A1

公开(公告)日：2015-11-19

申请号：US14812282

申请日：2015-07-29

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/105 ,  H04N19/593 ,  H04N19/157 ,  H04N19/186 ,  H04N19/176

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：US20150243001A1

公开(公告)日：2015-08-27

申请号：US14710769

申请日：2015-05-13

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： G06T5/00 ,  H04N19/86 ,  H04N19/80

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

摘要： It is configured such that decoded images with favorable image quality are obtained, even in the case of using extended macroblock sizes.A deblocking filter 24 applies filtering to reduce blocking artifacts from an encoded stream in which image data has been encoded in individual blocks. A filter strength adjuster 41 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. It may also be configured such that filtering is 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.

摘要翻译： 即使在使用扩展宏块大小的情况下，也能够获得具有良好的图像质量的解码图像。 去块滤波器24应用滤波以减少其中图像数据已经被编码在各个块中的编码流的块伪影。 滤波强度调节器41根据预测图像数据的块大小来调整滤波器强度。 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。 也可以配置为使得在图像解码期间应用滤波以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。

公开(公告)号：US20150131737A1

公开(公告)日：2015-05-14

申请号：US14602830

申请日：2015-01-22

申请人： SONY CORPORATION

发明人： Kazushi SATO

IPC分类号： H04N19/52 ,  H04N19/547

CPC分类号： H04N19/52 ,  G06T9/00 ,  H04N19/105 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/196 ,  H04N19/51 ,  H04N19/513 ,  H04N19/547 ,  H04N19/56 ,  H04N19/70

摘要： The present invention relates to an image processing device and method, which realize improvement in encoding efficiency for color difference signals and reduction in address calculations for memory access. In a case where a block size of orthogonal transform is 4×4, and a macroblock of luminance signals is configured of four 4×4 pixel blocks appended with 0 through 1, the four luminance signal blocks are corresponded with one color difference signal 4×4 block appended with C. At this time, there exist four motion vector information of mv0, mv1, mv2, and mv3, as to the four luminance signal blocks. The motion vector information mvc of the one color difference signal 4×4 block is calculated by averaging processing using these four motion vector information. The present invention can be applied to an image encoding device which performed encoding based on the H.264/AVC format, for example.

摘要翻译： 本发明涉及一种图像处理装置和方法，其实现色差信号的编码效率的提高和存储器访问的地址计算的减少。 在正交变换的块大小为4×4的情况下，亮度信号的宏块由附加了0〜1的四个4×4像素块构成，四个亮度信号块与一个色差信号4× 此时，对于四个亮度信号块，存在mv0，mv1，mv2和mv3的四个运动矢量信息。 通过使用这四个运动矢量信息的平均处理来计算一个色差信号4×4块的运动矢量信息mvc。 本发明可以应用于例如基于H.264 / AVC格式进行编码的图像编码装置。