公开(公告)号：US08634472B2

公开(公告)日：2014-01-21

申请号：US13489089

申请日：2012-06-05

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

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

IPC: H04N7/12

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 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：US08494043B2

公开(公告)日：2013-07-23

申请号：US13111709

申请日：2011-05-19

Applicant: Yoichi Yagasaki ,  Osamu Sunohara ,  Jun Murayama

Inventor： Yoichi Yagasaki ,  Osamu Sunohara ,  Jun Murayama

IPC: H04N7/12 ,  H03M7/00

CPC classification number: H04N19/12 ,  H04N19/00569 ,  H04N19/13 ,  H04N19/156 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50

Abstract: A video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. By limiting the amount of data to be input into/output from a CABAC encoding unit and decoding unit on a unit-of-encoding basis, such as one picture, slice, macroblock or block, and by encoding uncompressed video data, it is possible to provide a video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. Thereby, an apparatus with a guarantee of the processing time can be mounted.

公开(公告)号：US08477837B2

公开(公告)日：2013-07-02

申请号：US13111737

申请日：2011-05-19

Applicant: Yoichi Yagasaki ,  Osamu Sunohara ,  Jun Murayama

Inventor： Yoichi Yagasaki ,  Osamu Sunohara ,  Jun Murayama

IPC: H04N7/12 ,  G06K9/36 ,  H03M7/00

CPC classification number: H04N19/12 ,  H04N19/00569 ,  H04N19/13 ,  H04N19/156 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50

Abstract: A video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. By limiting the amount of data to be input into/output from a CABAC encoding unit and decoding unit on a unit-of-encoding basis, such as one picture, slice, macroblock or block, and by encoding uncompressed video data, it is possible to provide a video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. Thereby, an apparatus with a guarantee of the processing time can be mounted.

公开(公告)号：US08325820B2

公开(公告)日：2012-12-04

申请号：US12468912

申请日：2009-05-20

Applicant: Kazushi Sato ,  Teruhiko Suzuki ,  Osamu Sunohara ,  Yoichi Yagasaki

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

IPC: H04N7/12 ,  H04N11/02

CPC classification number: H04N19/52 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537

Abstract: 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

Applicant: Kazushi Sato ,  Teruhiko Suzuki ,  Osamu Sunohara ,  Yoichi Yagasaki

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

IPC: H04N7/12 ,  H04N11/02

CPC classification number: H04N19/52 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537

Abstract: 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.

Abstract translation: 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

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

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

IPC: H04N7/12

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 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.

Abstract translation: 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

Applicant: Kazushi SATO ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki

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 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.

Abstract translation: 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：US08144767B2

公开(公告)日：2012-03-27

申请号：US12620383

申请日：2009-11-17

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

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 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.

Abstract translation: 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：US20110216822A1

公开(公告)日：2011-09-08

申请号：US13111668

申请日：2011-05-19

Applicant: Yoichi YAGASAKI ,  Osamu Sunohara ,  Jun Murayama

Inventor： Yoichi YAGASAKI ,  Osamu Sunohara ,  Jun Murayama

IPC: H04N7/26

CPC classification number: H04N19/12 ,  H04N19/00569 ,  H04N19/13 ,  H04N19/156 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50

Abstract: A video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. By limiting the amount of data to be input into/output from a CABAC encoding unit and decoding unit on a unit-of-encoding basis, such as one picture, slice, macroblock or block, and by encoding uncompressed video data, it is possible to provide a video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. Thereby, an apparatus with a guarantee of the processing time can be mounted.

公开(公告)号：US20100329331A1

公开(公告)日：2010-12-30

申请号：US12879475

申请日：2010-09-10

Applicant: Yoichi YAGASAKI ,  Osamu Sunohara ,  Jun Murayama

Inventor： Yoichi YAGASAKI ,  Osamu Sunohara ,  Jun Murayama

IPC: H04N7/26

CPC classification number: H04N19/12 ,  H04N19/00569 ,  H04N19/13 ,  H04N19/156 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50

Abstract: A video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. By limiting the amount of data to be input into/output from a CABAC encoding unit and decoding unit on a unit-of-encoding basis, such as one picture, slice, macroblock or block, and by encoding uncompressed video data, it is possible to provide a video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. Thereby, an apparatus with a guarantee of the processing time can be mounted.

Abstract translation: 一种具有固定处理时间保证的视频信息编码装置和解码装置。 通过将基于单位编码的CABAC编码单元和解码单元（例如一个图像，片，宏块或块）和通过编码未压缩的视频数据来限制输入/输出的数据量， 提供具有固定处理时间的保证的视频信息编码装置和解码装置。 因此，可以安装具有处理时间保证的装置。