公开(公告)号：US10567805B2

公开(公告)日：2020-02-18

申请号：US14362527

申请日：2012-12-21

申请人： SONY CORPORATION

发明人： Hironari Sakurai ,  Ohji Nakagami ,  Takuya Kitamura ,  Yoichi Yagasaki

IPC分类号： H04N19/82 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/96 ,  H04N19/86 ,  H04N19/117 ,  H04N19/70 ,  H04N19/174 ,  H04N19/577

摘要： Aspects of the present disclosure provide an image processing device that includes circuitry configured to perform a decoding process on an encoded stream for generating an image. The encoded stream is arranged into largest coding units (LCUs), and filtering parameters applicable to each LCU are provided at a beginning portion of the corresponding LCU. The circuitry is further configured to perform adaptive offset filtering on portions of the image that correspond to the LCUs using the filtering parameters set at the beginning portions of the LCUs, respectively.

公开(公告)号：US09628804B2

公开(公告)日：2017-04-18

申请号：US14830359

申请日：2015-08-19

申请人： Sony Corporation

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

IPC分类号： H04N19/124 ,  H04N19/61 ,  H04N19/176 ,  H04N19/40 ,  H04N19/60 ,  H04N19/126 ,  H04N19/186 ,  H04N19/182 ,  H04N19/44 ,  H04N19/625 ,  H04N19/00

CPC分类号： 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

摘要： 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：US09282345B2

公开(公告)日：2016-03-08

申请号：US14579463

申请日：2014-12-22

申请人： SONY CORPORATION

发明人： Ohji Nakagami ,  Yoichi Yagasaki

IPC分类号： H04N19/63 ,  H04N19/82 ,  H04N19/503 ,  H04N19/593 ,  H04N19/107 ,  H04N19/109 ,  H04N19/117 ,  H04N19/577 ,  H04N19/51 ,  H04N19/573 ,  H04N19/615

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/117 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/593 ,  H04N19/615 ,  H04N19/63 ,  H04N19/82

摘要： The present invention relates to an image processing apparatus and method that can generate a high-accuracy prediction image with a small amount of control information.A motion compensation circuit 51 specifies a macroblock corresponding to a prediction image in a reference frame other than a current frame using a motion vector supplied from a prediction mode determination circuit 41. The motion compensation circuit 51 reads an image of the specified macroblock from a frame memory 19, and extracts the read image as a motion compensation image. An intra-prediction circuit 52 performs intra-prediction on the current frame using an arbitrary method to generate an intra-prediction image IP. The present invention can be applied to, for example, an encoding apparatus and a decoding apparatus.

公开(公告)号：US09277235B2

公开(公告)日：2016-03-01

申请号：US14341319

申请日：2014-07-25

申请人： Sony Corporation

发明人： Ohji Nakagami ,  Yoichi Yagasaki

IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/46 ,  H04N19/63 ,  H04N19/61 ,  H04N19/109 ,  H04N19/117 ,  H04N19/80 ,  H04N19/82 ,  H04N19/33 ,  H04N19/573 ,  H04N19/577 ,  H04N19/615 ,  H04N19/44 ,  H04N19/13

CPC分类号： H04N19/53 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/33 ,  H04N19/39 ,  H04N19/40 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/593 ,  H04N19/61 ,  H04N19/615 ,  H04N19/63 ,  H04N19/80 ,  H04N19/82

摘要： The present invention relates to an image processing apparatus and method that can improve encoding efficiency while preventing an increase in load.An extraction circuit 71 of a filtering prediction circuit 64 extracts motion compensation images for generating a prediction image in a high-resolution enhancement layer from reference frames in a low-resolution base layer. A filtering circuit 72 of the filtering prediction circuit 64 performs filtering, which involves upconversion and which uses analysis in the time direction, on a plurality of motion compensation images in the base layer extracted by the extraction circuit 71 to generate a prediction image in the enhancement layer. The present invention can be applied to, for example, an encoding apparatus and a decoding apparatus.

摘要翻译： 本发明涉及一种可以在防止负载增加的同时提高编码效率的图像处理装置和方法。 滤波预测电路64的提取电路71从低分辨率基础层的参考帧中提取用于在高分辨率增强层中生成预测图像的运动补偿图像。 滤波预测电路64的滤波电路72对由提取电路71提取的基本层中的多个运动补偿图像执行滤波，其涉及上变频并且在时间方向上使用分析，以在增强中生成预测图像 层。 本发明可以应用于例如编码装置和解码装置。

公开(公告)号：US09088784B2

公开(公告)日：2015-07-21

申请号：US14176826

申请日：2014-02-10

申请人： SONY CORPORATION

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

IPC分类号： H04N7/12 ,  H04N19/51 ,  H04N19/176 ,  H04N19/513 ,  H04N19/13 ,  H04N19/16 ,  H03M7/40

CPC分类号： H04N19/52 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537

摘要： An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

摘要翻译： 一种编码装置和编码方法，解码装置和解码方法，记录介质和适用于编码用于传输或累积的较高压缩比的图像信号的程序。 在算术编码部分中，从输入图像压缩信息的语法元素中，帧/场标志首先由帧/场标志上下文模型编码。 当要处理的宏块进行基于帧的编码时，应用在当前H.26L标准中指定的基于帧的上下文模型。 另一方面，当对待处理的宏块进行基于场的编码时，对于下面描述的语法元素应用基于场的上下文模型。 本发明应用于编码图像信息的编码器和解码图像信息的解码器。

公开(公告)号：US08559504B2

公开(公告)日：2013-10-15

申请号：US13706981

申请日：2012-12-06

申请人： Sony Corporation

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

IPC分类号： H04B1/66

CPC分类号： 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

摘要： An image decoding apparatus for decoding a bit stream includes a receiving unit that receives the bit stream and a weight parameter that is added to a luma quantization parameter. The image decoding apparatus also includes a decoding unit that decodes the bit stream and generates a chroma component of quantized coefficients. Further, the image decoding apparatus includes a dequantization unit that performs dequantization on the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by the weight parameter. In addition, the image decoding apparatus includes a transform unit that performs an inverse orthogonal transform.

摘要翻译： 用于解码比特流的图像解码装置包括：接收单元，其接收比特流和加权参数，加权参数被加到亮度量化参数。 图像解码装置还包括对比特流进行解码并生成量化系数的色度分量的解码单元。 此外，图像解码装置包括使用基于由权重参数加权的亮度量化参数计算的色度量化参数对量化系数的色度分量进行逆量化的反量化单元。 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：US08548059B2

公开(公告)日：2013-10-01

申请号：US13712517

申请日：2012-12-12

申请人： Sony Corporation

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 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.

摘要翻译： 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移动参考场中的色度信号的相位，使得参考场将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：US08488669B2

公开(公告)日：2013-07-16

申请号：US13725519

申请日：2012-12-21

申请人： Sony Corporation

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

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/52 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537

摘要： An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

公开(公告)号：US20130107967A1

公开(公告)日：2013-05-02

申请号：US13725462

申请日：2012-12-21

申请人： SONY CORPORATION

发明人： Kazushi SATO ,  Teruhiko Suzuki ,  Osamu Sunohara ,  Yoichi Yagasaki

IPC分类号： H04N7/26

CPC分类号： H04N19/52 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537

摘要： An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

摘要翻译： 一种编码装置和编码方法，解码装置和解码方法，记录介质和适用于编码用于传输或累积的较高压缩比的图像信号的程序。 在算术编码部分中，从输入图像压缩信息的语法元素中，帧/场标志首先由帧/场标志上下文模型编码。 当要处理的宏块进行基于帧的编码时，应用在当前H.26L标准中指定的基于帧的上下文模型。 另一方面，当对待处理的宏块进行基于场的编码时，对于下面描述的语法元素应用基于场的上下文模型。 本发明应用于编码图像信息的编码器和解码图像信息的解码器。

公开(公告)号：US20130094575A1

公开(公告)日：2013-04-18

申请号：US13706862

申请日：2012-12-06

申请人： SONY CORPORATION

发明人： Kazushi SATO ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki ,  Kuniaki Takahashi

IPC分类号： H04N7/26

CPC分类号： 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

摘要： A decoding method decodes a bit stream in an image decoding apparatus. The method 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. The method also includes performing, in a dequantization unit in the image decoding apparatus, dequantization on the luma component of quantized coefficients and the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation.

摘要翻译： 解码方法对图像解码装置中的比特流进行解码。 该方法包括在图像解码装置的解码单元中解码比特流，以及生成量化系数的亮度分量和量化系数的色度分量。 该方法还包括在图像解码装置的去量化单元中，使用基于通过加法运算加权的亮度量化参数计算出的色度量化参数，对量化系数的亮度分量和量化系数的色度分量进行逆量化 。