公开(公告)号：US08634472B2

公开(公告)日：2014-01-21

申请号：US13489089

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： H04N7/12

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 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 has a different parity from a current field for motion compensation 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 according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.

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：US08238425B2

公开(公告)日：2012-08-07

申请号：US11721887

申请日：2006-09-06

申请人： Liming Wang ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Liming Wang ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04N7/12

CPC分类号： H04N19/105 ,  H04N19/112 ,  H04N19/16 ,  H04N19/174 ,  H04N19/187 ,  H04N19/33 ,  H04N19/50 ,  H04N19/59 ,  H04N19/61

摘要： An encoding apparatus for encoding progressive image data and interlace image data corresponding to this progressive image data, having a first encoding unit configured to encode picture data composing the interlace image data to generate first encoded data and decoding and recomposing the first encoded data to generate recomposed image data, an up sample processing unit configured to up sample the generated recomposed image data to generate image data having the same resolution as that of the progressive image data, and a second encoding unit configured to encode the picture data composing the progressive image data to generate second encoded data using the generated image data as predictive image data.

摘要翻译： 一种用于对逐行图像数据进行编码的逐行图像数据和隔行扫描图像数据的编码装置，具有：第一编码单元，对构成隔行图像数据的图像数据进行编码，生成第一编码数据，对第一编码数据进行解码和重构， 图像数据，上采样处理单元，被配置为对所生成的重组图像数据进行采样，以生成与逐行图像数据具有相同分辨率的图像数据;以及第二编码单元，被配置为将构成逐行图像数据的图像数据编码为 使用所生成的图像数据作为预测图像数据来生成第二编码数据。

公开(公告)号：US08228988B2

公开(公告)日：2012-07-24

申请号：US13046341

申请日：2011-03-11

申请人： Hendrikus Markus Veltman ,  Yoichi Yagasaki ,  Teruhiko Suzuki

发明人： Hendrikus Markus Veltman ,  Yoichi Yagasaki ,  Teruhiko Suzuki

IPC分类号： H04N7/12

CPC分类号： H04N19/00 ,  H04N19/114 ,  H04N19/152 ,  H04N19/156 ,  H04N19/157 ,  H04N19/172 ,  H04N19/50 ,  H04N19/577 ,  H04N19/61

摘要： Continuous reproduction can be made possible. An encoding apparatus for executing an encoding process with an encoding system capable of at least B-pictures as pictures to be prediction-encoded comprises a timing calculation means for, anticipating that a plurality of encoded information created by performing the encoding process will be sequentially decoded on a decoding side, calculating output timing for results of decoding the encoded information, and a timing notification means for notifying the decoding side of the output timing calculated by the timing calculation means before a result of decoding corresponding encoded information is obtained.

摘要翻译： 可以连续再生。 一种编码装置，用于执行具有至少能够进行预测编码的图像的至少B图像的编码系统的编码处理，包括：时序计算装置，用于预测通过执行编码处理创建的多个编码信息将被顺序解码 在解码侧，计算对编码信息进行解码的结果的输出定时，以及定时通知装置，用于在获得解码对应编码信息的结果之前通知解码侧由定时计算装置计算的输出定时。

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。