公开(公告)号：US10063857B2

公开(公告)日：2018-08-28

申请号：US15252914

申请日：2016-08-31

Applicant: SONY CORPORATION

Inventor： Jun Xu ,  Kazushi Sato ,  Ehsan Maani

IPC: H04N7/26 ,  H04N19/124 ,  H04N19/70 ,  H04N19/149 ,  H04N19/126 ,  H04N19/186 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/174 ,  H04N19/13 ,  H04N19/159 ,  H04N19/80 ,  H04N19/436 ,  H04N19/172

Abstract: The quantization parameters (QP) for Chroma are extended up to and more preferably to the same range as Luma QP (e.g., 0 to 51). Previous, values of Chroma QP only extended up to 39. Techniques are provided for determining extended Chroma QP values (e.g., for Cr and Cb) based on the Luma QP and picture level chroma offsets. In one preferred embodiment, slice level offsets are added making the method particularly well-suited for slice level parallel processing. The extension of Chroma QP enhances functionality, flexibility and friendliness of the High Efficiency Video Coding (HEVC) standard for various applications.

公开(公告)号：US10063856B2

公开(公告)日：2018-08-28

申请号：US15252496

申请日：2016-08-31

Applicant: SONY CORPORATION

Inventor： Jun Xu ,  Kazushi Sato ,  Ehsan Maani

IPC: H04N7/26 ,  H04N19/124 ,  H04N19/70 ,  H04N19/149 ,  H04N19/126 ,  H04N19/186 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/174 ,  H04N19/13 ,  H04N19/159 ,  H04N19/80 ,  H04N19/436 ,  H04N19/172

Abstract: The quantization parameters (QP) for Chroma are extended up to and more preferably to the same range as Luma QP (e.g., 0 to 51). Previous, values of Chroma QP only extended up to 39. Techniques are provided for determining extended Chroma QP values (e.g., for Cr and Cb) based on the Luma QP and picture level chroma offsets. In one preferred embodiment, slice level offsets are added making the method particularly well-suited for slice level parallel processing. The extension of Chroma QP enhances functionality, flexibility and friendliness of the High Efficiency Video Coding (HEVC) standard for various applications.

公开(公告)号：US10027987B2

公开(公告)日：2018-07-17

申请号：US14988365

申请日：2016-01-05

Applicant: SONY CORPORATION

Inventor： Kazushi Sato

IPC: H04N19/82 ,  G06T9/00 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/30 ,  H04N19/117 ,  H04N19/12 ,  H04N19/132 ,  H04N19/152 ,  H04N19/157 ,  H04N19/184 ,  H04N19/85 ,  H04N19/124 ,  H04N19/44

Abstract: The present technology relates to an image processing apparatus and method that are capable of enhancing encoding efficiency while suppressing a decrease in the efficiency of encoding processing. The image processing apparatus includes an encoding mode setter that sets, in units of coding units having a hierarchical structure, whether a non-compression mode is to be selected as an encoding mode for encoding image data, the non-compression mode being an encoding mode in which the image data is output as encoded data, and an encoder that encodes the image data in units of the coding units in accordance with a mode set by the encoding mode setter. The present disclosure can be applied to, for example, an image processing apparatus.

公开(公告)号：US09503748B2

公开(公告)日：2016-11-22

申请号：US14195990

申请日：2014-03-04

Applicant: SONY CORPORATION

Inventor： Kazushi Sato

IPC: G06K9/36 ,  H04N19/52 ,  G06T9/00 ,  H04N19/56 ,  H04N19/105 ,  H04N19/51 ,  H04N19/196 ,  H04N19/186 ,  H04N19/513 ,  H04N19/547

CPC classification number: 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

Abstract: 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.

公开(公告)号：US09414089B2

公开(公告)日：2016-08-09

申请号：US14987190

申请日：2016-01-04

Applicant: SONY CORPORATION

Inventor： Hironari Sakurai ,  Junichi Tanaka ,  Kazushi Sato

IPC: H04N19/00 ,  H04N19/61 ,  H04N19/625 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N21/84 ,  H04N21/482 ,  H04N21/45

CPC classification number: H04N19/61 ,  H04N5/775 ,  H04N9/8042 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N19/625 ,  H04N21/4532 ,  H04N21/4821 ,  H04N21/84

Abstract: An image processing apparatus includes a receiving unit configured to receive image data of program content and genre information relating to the program content, a selection unit configured to select a size selection parameter for causing the genre information received by the receiving unit to be reflected in a block size, a determination unit configured to determine a block size in accordance with the size selection parameter selected by the selection unit, the block size being used for orthogonal transformation, and an orthogonal transformation unit configured to perform orthogonal transformation on the image data received by the receiving unit at the block size determined by the determination unit.

公开(公告)号：US09338457B2

公开(公告)日：2016-05-10

申请号：US14569102

申请日：2014-12-12

Applicant: Sony Corporation

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

IPC: H04N7/12 ,  H04N19/109 ,  H04N11/04 ,  H04N7/01 ,  H04N19/51 ,  H04N19/105 ,  H04N19/50 ,  H04N19/139 ,  H04N19/513 ,  H04N19/112 ,  H04N19/124 ,  H04N19/186 ,  H04N19/152 ,  H04N19/16 ,  H04N19/44 ,  H04N19/523 ,  H04N19/57 ,  H04N19/36 ,  H04N19/136 ,  H04N19/176

CPC classification number: 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

Abstract: In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv of vertical component in motion vector information so that the reference image block will coincide in phase of the color-difference signal with an input image block.

Abstract translation: 在以4:2:0格式提供隔行扫描图像的图像信息编码器（10）中，色差信号相位校正单元（22）将色差信号的相位移动到运动估计和补偿中 参考图像块自适应于所选择的运动估计模式和运动矢量信息中的垂直分量的值mv，使得参考图像块将与色差信号与输入图像块的相位一致。

公开(公告)号：US09167267B2

公开(公告)日：2015-10-20

申请号：US14464157

申请日：2014-08-20

Applicant: SONY CORPORATION

Inventor： Kazushi Sato

IPC: G06K9/36 ,  H04N19/60 ,  H04N19/176 ,  H04N19/117 ,  H04N19/157 ,  H04N19/86 ,  H04N19/80

CPC classification number: H04N19/117 ,  H04N19/157 ,  H04N19/17 ,  H04N19/176 ,  H04N19/44 ,  H04N19/60 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86

Abstract: A deblocking filter performs filtering of decoded image data obtained by decoding image data encoded for each block, so as to remove block distortion. If at least one of block sizes on adjacent sides of two adjacent blocks is extended larger than a predetermined block size, a filter setting unit sets the tap length to an extended length to increase the strength of distortion removal, or sets a filtering object pixel range to an extended range. When a macroblock having an extended size is used, the degree of smoothing is increased, and pixels including those distant from the block boundary are subjected to filtering. Consequently, even when various block sizes are employed or when blocks of extended sizes are used, images of high image quality can be achieved.

Abstract translation: 去块滤波器对通过对针对每个块编码的图像数据进行解码而获得的解码图像数据进行滤波，以便去除块失真。 如果两个相邻块的相邻侧上的块大小中的至少一个被扩展到大于预定块大小，则滤波器设置单元将抽头长度设置为扩展长度以增加失真去除的强度，或者设置滤波对象像素范围 到更广泛的范围。 当使用具有扩展大小的宏块时，平滑度增加，并且包括远离块边界的像素的像素被进行滤波。 因此，即使使用各种块尺寸或者使用扩展尺寸的块，也可以实现高图像质量的图像。

公开(公告)号：US20150163505A1

公开(公告)日：2015-06-11

申请号：US14402153

申请日：2013-09-19

Applicant: SONY CORPORATION

Inventor： Kazushi Sato

IPC: H04N19/503 ,  H04N19/44

CPC classification number: H04N19/503 ,  H04N19/103 ,  H04N19/147 ,  H04N19/159 ,  H04N19/187 ,  H04N19/31 ,  H04N19/44 ,  H04N19/70

Abstract: The present disclosure relates to image processing device and method that can suppress the deterioration in encoding efficiency.An image processing device includes: a reception unit that receives encoded data in which an image with a plurality of main layers is encoded, and inter-layer prediction control information controlling whether to perform inter-layer prediction, which is prediction between the plurality of main layers, with the use of a sublayer; and a decoding unit that decodes each main layer of the encoded data received by the reception unit by performing the inter-layer prediction on only the sublayer specified by the inter-layer prediction control information received by the reception unit. The present disclosure can be applied to, for example, an image processing device.

Abstract translation: 本公开涉及能够抑制编码效率恶化的图像处理装置及方法。 一种图像处理装置包括：接收单元，其接收编码有多个主层的图像的编码数据，以及控制是否执行层间预测的层间预测控制信息，所述层间预测是多个主层之间的预测 层，使用子层; 以及解码单元，通过仅由由接收单元接收的层间预测控制信息指定的子层执行层间预测，对接收单元接收的编码数据的每个主层进行解码。 本公开可以应用于例如图像处理装置。

公开(公告)号：US20150139304A1

公开(公告)日：2015-05-21

申请号：US14402777

申请日：2013-06-21

Applicant: SONY CORPORATION

Inventor： Kazushi Sato ,  Yoshitaka Morigami ,  Shuo Lu

IPC: H04N19/124 ,  H04N19/157 ,  H04N19/176

CPC classification number: H04N19/124 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/70

Abstract: The present disclosure relates to an image processing device and a method capable of suppressing the reduction of an image quality due to encoding/decoding. The image processing device includes: a quantization unit that when orthogonal transform processing is skipped with respect to a current block, quantizes all components of the current block using one weighting coefficient and when the orthogonal transform processing is performed on the current block, quantizes each component of the current block using a quantization matrix; an encoding unit that encodes the coefficient of the current block which is quantized by the quantization unit; and a transmission unit that transmits the coded data of the current block which is obtained by being encoded by the encoding unit. The present disclosure can be applied to, for example, an image processing device.

公开(公告)号：US20150103901A1

公开(公告)日：2015-04-16

申请号：US14397565

申请日：2014-03-14

Applicant: Sony Corporation

Inventor： Kazushi Sato

IPC: H04N19/50 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/186 ,  H04N19/30 ,  H04N19/33 ,  H04N19/44 ,  H04N19/463 ,  H04N19/61

Abstract: Provided is an image processing apparatus including a decoding section configured to decode a difference from a previous value of a prediction parameter used when an image of a second layer having a different color gamut from a first layer is predicted from an image of the first layer, and a prediction section configured to predict the image of the second layer from the image of the first layer using the prediction parameter calculated using the difference decoded by the decoding section.

Abstract translation: 提供了一种图像处理装置，包括：解码部，被配置为从第一层的图像预测具有来自第一层的具有不同色域的第二层的图像时，使用所使用的预测参数的先前值的差; 以及预测部，被配置为使用使用由解码部解码的差计算出的预测参数，从第一层的图像预测第二层的图像。