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：US08325820B2

公开(公告)日：2012-12-04

申请号：US12468912

申请日：2009-05-20

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

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：US08320467B2

公开(公告)日：2012-11-27

申请号：US12468917

申请日：2009-05-20

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

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.

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：US20120287992A1

公开(公告)日：2012-11-15

申请号：US13559123

申请日：2012-07-26

申请人： Kazushi SATO ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki ,  Kuniaki Takahashi

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

IPC分类号： H04N7/12

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 multiplexing method for multiplexing a bit stream in a multiplexing apparatus. The method includes encoding, in an encoding unit in the multiplexing apparatus, a chroma component of image data using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation that adds a weight parameter and generating the bit stream. The method further includes multiplexing, in an multiplexing unit in the multiplexing apparatus, the bit stream and generating a system stream.

摘要翻译： 一种用于复用多路复用装置中的比特流的复用方法。 该方法包括：在多路复用装置的编码单元中，使用基于通过加权重参数加权的亮度量化参数计算的色度量化参数，生成比特流，对图像数据的色度分量进行编码。 该方法还包括在多路复用装置中的复用单元中复用比特流并生成系统流。

公开(公告)号：US20120243617A1

公开(公告)日：2012-09-27

申请号：US13488973

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： H04N7/26

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 is a bottom field while a current field is a top field for motion estimation 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 by mv/2¼, where mv is a vertical component in a luma motion vector of the luma signal. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector.

摘要翻译： 图像解码方法包括对编码图像数据进行解码，生成包括亮度信号和色度信号的解码图像信号。 该方法还包括缩放，当参考场是底场时，当前场是用于运动估计的顶场，并且当解码图像信号是色度像素数量与亮度数量垂直不同的格式时 像素，色度信号的色度运动矢量为mv /2¼，其中mv是亮度信号的亮度运动矢量中的垂直分量。 该方法还包括使用缩放的色度运动矢量对解码图像信号进行运动补偿。

公开(公告)号：US08213505B2

公开(公告)日：2012-07-03

申请号：US12171882

申请日：2008-07-11

申请人： Ohji Nakagami ,  Kazushi Sato ,  Yoichi Yagasaki

发明人： Ohji Nakagami ,  Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： H04N7/18

CPC分类号： H04N19/107 ,  H04N19/11 ,  H04N19/147 ,  H04N19/152 ,  H04N19/176 ,  H04N19/86

摘要： An encoding apparatus for generating, in an intra prediction mode, difference data by subtracting prediction values from input image data, and performing encoding processing on the input image data by processing the difference data. The apparatus includes a first prediction mode detecting section for detecting a first best prediction mode, a second prediction mode detecting section for detecting a second best prediction mode, and a prediction value generating section for selecting a best prediction mode. The first prediction mode detecting section detects the first best prediction mode by utilizing processing in the second prediction mode detecting section.

摘要翻译： 一种编码装置，用于通过从输入图像数据中减去预测值，以帧内预测模式生成差分数据，并通过处理差分数据对输入图像数据进行编码处理。 该装置包括用于检测第一最佳预测模式的第一预测模式检测部分，用于检测第二最佳预测模式的第二预测模式检测部分，以及用于选择最佳预测模式的预测值产生部分。 第一预测模式检测部通过利用第二预测模式检测部中的处理来检测第一最佳预测模式。

公开(公告)号：US08150182B2

公开(公告)日：2012-04-03

申请号：US13184044

申请日：2011-07-15

申请人： Kazushi Sato ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： G06K9/36

CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176

摘要： The present invention is directed to an image information encoding apparatus, used in receiving compressed image information through network media when processing of such compressed image information is performed on storage media. A picture sorting buffer delivers information of picture type of frame Picture_type to a picture type discrimination unit. The picture type discrimination unit transmits command to a motion prediction/compensation unit on the basis of that information. The motion prediction/compensation unit generates predictive picture by using filter coefficients having the number of taps lesser than that of P picture with respect to B picture for which operation quantity and the number of memory accesses are required to more degree as compared to P picture on the basis of that command.

公开(公告)号：US08144767B2

公开(公告)日：2012-03-27

申请号：US12620383

申请日：2009-11-17

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

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 information decoding method for decoding compressed image information which has been coded via a process including dividing an input image signal into blocks, performing an orthogonal transform on the blocks on a block-by-block basis, and quantizing resultant orthogonal transform coefficients. The decoding process includes performing dequantization such that a quantization parameter is weighted by an addition operation, and the dequantization is performed on each chroma components of the quantized coefficients using said weighted quantization parameter, and performing an inverse orthogonal transform.

摘要翻译： 一种图像信息解码方法，用于对通过包括将输入图像信号分割为块的处理进行了编码的压缩图像信息进行解码，对该块进行正交变换，并对所得到的正交变换系数进行量化。 解码处理包括进行解量化，使得量化参数通过加法运算加权，并且使用所述加权量化参数对量化系数的每个色度分量执行去量化，并执行逆正交变换。

公开(公告)号：US07742648B2

公开(公告)日：2010-06-22

申请号：US10501714

申请日：2003-01-23

申请人： Kazushi Sato ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： G06K9/36

CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176

摘要： The present invention is directed to an image information encoding apparatus (10) used, in receiving compressed image information through network media, when processing of such compressed image information is performed on storage media. A picture sorting buffer (12) delivers information of picture type of frame Picture_type to a picture type discrimination unit (22). The picture type discrimination unit (22) transmits command to a motion prediction/compensation unit (21) on the basis of that information. The motion prediction/compensation unit (21) generates predictive picture by using filter coefficients having the number of taps lesser than that of P picture with respect to B picture for which operation quantity and the number of memory accesses are required to more degree as compared to, e.g., P picture on the basis of that command.

摘要翻译： 本发明涉及一种图像信息编码装置（10），当在存储介质上执行这种压缩图像信息的处理时，通过网络媒体接收压缩图像信息。 图像排序缓冲器（12）将图像类型的帧Picture_type的信息传递给图像类型识别单元（22）。 图像类型识别单元（22）基于该信息向运动预测/补偿单元（21）发送命令。 运动预测/补偿单元（21）通过使用具有小于P图像的抽头次数的滤波器系数来生成预测图像，该B图像相对于B图像需要更多的操作量和存储器访问次数 ，例如，基于该命令的P图像。

公开(公告)号：US20100142835A1

公开(公告)日：2010-06-10

申请号：US11996720

申请日：2006-07-25

申请人： Ohji Nakagami ,  Kazushi Sato ,  Yoichi Yagasaki

发明人： Ohji Nakagami ,  Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： G06K9/36

CPC分类号： H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

摘要： 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.

摘要翻译： 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。