公开(公告)号：US08731310B2

公开(公告)日：2014-05-20

申请号：US13940782

申请日：2013-07-12

Applicant: Sony Corporation

Inventor： Kazushi Sato

IPC: G06K9/36 ,  G06K9/00

CPC classification number: H04N19/18 ,  H04N19/119 ,  H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/30 ,  H04N19/33 ,  H04N19/44 ,  H04N19/463 ,  H04N19/70

Abstract: The present technology relates to an image processing apparatus and a method capable of performing a quantization process or an inverse quantization process more suitable for contents of an image. A lossless decoding unit 202 decodes coded data read from an accumulation buffer 201 at a predetermined timing. A sub macroblock inverse quantization unit 221 obtains a quantization value for each sub macroblock by using a quantization parameter supplied from an inverse quantization unit 203 and returns the same to the inverse quantization unit 203. The inverse quantization unit 203 inversely quantizes a quantization coefficient obtained by decoding by the lossless decoding unit 202 by using the quantization value for each sub macroblock supplied from the sub macroblock inverse quantization unit 221. The present technology may be applied to the image processing apparatus, for example.

Abstract translation: 本技术涉及能够执行更适合图像内容的量化处理或逆量化处理的图像处理装置和方法。 无损解码单元202以预定的定时解码从累积缓冲器201读取的编码数据。 子宏块逆量化单元221通过使用从逆量化单元203提供的量化参数获得每个子宏块的量化值，并将其返回到逆量化单元203.逆量化单元203对由 通过使用从子宏块逆量化单元221提供的每个子宏块的量化值，由无损解码单元202进行解码。本技术可以应用于例如图像处理装置。

公开(公告)号：US08675978B2

公开(公告)日：2014-03-18

申请号：US13965950

申请日：2013-08-13

Applicant: Sony Corporation

Inventor： Kazushi Sato

IPC: G06K9/36 ,  G06K9/46 ,  H04N7/26 ,  H04N7/32

CPC classification number: G06T9/004 ,  H04N19/11 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50 ,  H04N19/593 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86

Abstract: The present invention relates to an image processing device and method enabling noise removal to be performed according to images and bit rates. A low-pass filter setting unit 93 sets, from filter coefficients stored in a built-in filter coefficient memory 94, a filter coefficient corresponding to intra prediction mode information and a quantization parameter. A neighboring image setting unit 81 uses the filter coefficient set by the low-pass filter setting unit 93 to subject neighboring pixel values of a current block from frame memory 72 to filtering processing. A prediction image generating unit 82 performs intra prediction using the neighboring pixel values subjected to filtering processing, from the neighboring image setting unit 81, and generates a prediction image. The present invention can be applied to an image encoding device which encodes with the H.264/AVC format, for example.

Abstract translation: 本发明涉及能够根据图像和比特率执行噪声去除的图像处理装置和方法。 低通滤波器设置单元93从存储在内置滤波器系数存储器94中的滤波器系数设置与帧内预测模式信息和量化参数对应的滤波器系数。 相邻图像设定部81使用由低通滤波器设定部93设定的滤波器系数，对来自帧存储器72的当前块的相邻像素值进行滤波处理。 预测图像生成部82使用来自相邻图像设定部81的经过滤波处理的相邻像素值进行帧内预测，​​生成预测图像。 本发明可以应用于例如以H.264 / AVC格式进行编码的图像编码装置。

公开(公告)号：US08654841B2

公开(公告)日：2014-02-18

申请号：US13707147

申请日：2012-12-06

Applicant: Sony Corporation

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

IPC: H04B1/66

CPC classification number: H04N19/124 ,  H04N7/26244 ,  H04N7/26335 ,  H04N7/26941 ,  H04N7/50 ,  H04N19/126 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/40 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625

Abstract: An image decoding apparatus for decoding a bit stream includes a decoding unit that decodes the bit stream and generates a chroma component of quantized coefficients. In addition, the image decoding apparatus includes a setting unit that sets a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation that adds a weight parameter. In addition, the image decoding apparatus includes a dequantization unit that performs dequantization on the chroma component of quantized coefficients using the chroma quantization parameter. Further, the image decoding apparatus includes a transform unit that performs an inverse orthogonal transform.

Abstract translation: 用于解码比特流的图像解码装置包括对比特流进行解码并产生量化系数的色度分量的解码单元。 此外，图像解码装置包括设置单元，其设置基于通过添加权重参数的加法运算加权的亮度量化参数而计算出的色度量化参数。 此外，图像解码装置包括使用色度量化参数对量化系数的色度分量进行去量化的逆量化单元。 此外，图像解码装置包括执行逆正交变换的变换单元。

公开(公告)号：US08634459B2

公开(公告)日：2014-01-21

申请号：US13706815

申请日：2012-12-06

Applicant: Sony Corporation

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

IPC: H04B1/66

CPC classification number: H04N19/124 ,  H04N7/26244 ,  H04N7/26335 ,  H04N7/26941 ,  H04N7/50 ,  H04N19/126 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/40 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625

Abstract: A decoding method decodes a bit stream in an image decoding apparatus. The method includes receiving a weight parameter that is added to a luma quantization parameter as the bit stream. The method also includes decoding, in a decoding unit in the image decoding apparatus, the bit stream, and generating a luma component of quantized coefficients and a chroma component of quantized coefficients. Further, the method includes performing, in a dequantization unit in the image decoding apparatus, dequantization on the luma component of quantized coefficients using the luma quantization parameter and the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of the luma quantization parameter weighted by an add operation of the weight parameter. In addition, the method includes performing, in a transform unit in the image decoding apparatus, an inverse orthogonal transform.

公开(公告)号：US20140003487A1

公开(公告)日：2014-01-02

申请号：US13757624

申请日：2013-02-01

Applicant: SONY CORPORATION

Inventor： Munsi Haque ,  Kazushi Sato ,  Ali Tabatabai ,  Teruhiko Suzuki

IPC: H04N7/26

CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/45 ,  H04N19/70

Abstract: A method of operation of a video coding system includes: receiving a video bitstream; extracting a video syntax from the video bitstream; extracting a temporal layer from the video bitstream based on the video syntax; and forming a video stream based on the temporal layer for displaying on a device.

Abstract translation: 视频编码系统的操作方法包括：接收视频比特流; 从视频比特流中提取视频语法; 基于视频语法从视频比特流中提取时间层; 以及基于用于在设备上显示的时间层形成视频流。

公开(公告)号：US20130247110A1

公开(公告)日：2013-09-19

申请号：US13888006

申请日：2013-05-06

Applicant: SONY CORPORATION

Inventor： Hironari Sakurai ,  Junichi Tanaka ,  Kazushi Sato

IPC: H04N7/30

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.

Abstract translation: 一种图像处理装置，包括：接收单元，被配置为接收节目内容的图像数据和与节目内容有关的种类信息;选择单元，被配置为选择用于使由接收单元接收的种类信息被反映在 块尺寸，确定单元，被配置为根据由选择单元选择的尺寸选择参数确定块大小，用于正交变换的块大小;以及正交变换单元，被配置为对由 所述接收单元以由所述确定单元确定的块大小。

公开(公告)号：US20130188693A1

公开(公告)日：2013-07-25

申请号：US13744759

申请日：2013-01-18

Applicant: SONY CORPORATION

Inventor： Jun Xu ,  Kazushi Sato

IPC: H04N7/26

CPC classification number: H04N19/124 ,  H04N19/126 ,  H04N19/13 ,  H04N19/147 ,  H04N19/149 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80

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.

Abstract translation: 用于色度的量化参数（QP）被扩展到并且更优选地与亮度QP（例如，0至51）相同的范围。 之前，Chroma QP的值仅延伸到39.提供了基于亮度QP和图像级色度偏移来确定扩展色度QP值（例如，对于Cr和Cb）的技术。 在一个优选实施例中，添加限幅电平偏移，使得该方法特别适合于片级并行处理。 Chroma QP的扩展增强了各种应用的高效视频编码（HEVC）标准的功能，灵活性和友好性。

公开(公告)号：US20130156110A1

公开(公告)日：2013-06-20

申请号：US13758602

申请日：2013-02-04

Applicant: Sony Corporation

Inventor： Ohji Nakagami ,  Kazushi Sato ,  Yoichi Yagasaki

IPC: H04N7/26

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/124 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/80

Abstract: There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding Image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of the block image data to be filtered, and a filtering unit applies filtering to the block image data to be processed according to the filtering content selected by the controlling unit.

Abstract translation: 提供了一种图像处理系统和能够在解码以块为单位编码的图像数据的情况下抑制块失真的图像处理方法。 控制单元基于要滤波的块图像数据的编码类型来选择要应用于块图像数据的滤波内容，并且滤波单元根据由以下所选择的滤波内容对要处理的块图像数据进行滤波： 控制单元。

公开(公告)号：US20130101020A1

公开(公告)日：2013-04-25

申请号：US13712517

申请日：2012-12-12

Applicant: Sony Corporation

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

IPC: H04N7/26

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: An image processing method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes detecting a condition that a reference field has a different parity from a current field and that the number of chroma pixels is vertically different from the number of luma pixels. The method further includes shifting a phase of the chroma signal in the reference field in a vertical plus direction according a value of a motion vector in a vertical direction under the detected condition so that the reference field will coincide in phase of the chroma signal with a current field. The method also includes performing a motion compensation of the decoded image signal using the reference field.

Abstract translation: 图像处理方法包括解码编码图像数据以产生包括亮度信号和色度信号的解码图像信号。 该方法还包括检测参考场与当前场具有不同奇偶性的条件，并且色度像素的数量与亮度像素的数量垂直不同。 该方法还包括在检测条件下根据垂直方向上的运动矢量的值在垂直正方向上偏移参考场中的色度信号的相位，使得参考场与色度信号的相位一致 当前字段。 该方法还包括使用参考场来执行解码图像信号的运动补偿。

公开(公告)号：US12022116B2

公开(公告)日：2024-06-25

申请号：US18143371

申请日：2023-05-04

Applicant: SONY CORPORATION

Inventor： Kazushi Sato

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/159 ,  H04N19/182 ,  H04N19/184 ,  H04N19/82 ,  H04N19/86 ,  H04N19/136 ,  H04N19/30 ,  H04N19/597

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/159 ,  H04N19/182 ,  H04N19/184 ,  H04N19/82 ,  H04N19/86 ,  H04N19/136 ,  H04N19/30 ,  H04N19/597

Abstract: 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.