公开(公告)号：US20130010875A1

公开(公告)日：2013-01-10

申请号：US13619779

申请日：2012-09-14

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： H04N7/32

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：US08243809B2

公开(公告)日：2012-08-14

申请号：US12340450

申请日：2008-12-19

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： In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv of vertical component in motion vector information so that the reference image block will coincide in phase of the color-difference signal with an input image block.

公开(公告)号：US20090135914A1

公开(公告)日：2009-05-28

申请号：US12340283

申请日：2008-12-19

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： In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv of vertical component in motion vector information so that the reference image block will coincide in phase of the color-difference signal with an input image block.

摘要翻译： 在以4:2:0格式提供隔行扫描图像的图像信息编码器（10）中，色差信号相位校正单元（22）将色差信号的相位移动到运动估计和补偿 参考图像块自适应于所选择的运动估计模式和运动矢量信息中的垂直分量的值mv，使得参考图像块将与色差信号与输入图像块的相位一致。

公开(公告)号：US20090103623A1

公开(公告)日：2009-04-23

申请号：US12340356

申请日：2008-12-19

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： In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv of vertical component in motion vector information so that the reference image block will coincide in phase of the color-difference signal with an input image block.

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：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：US20090225862A1

公开(公告)日：2009-09-10

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： H04N7/32

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：US08477854B2

公开(公告)日：2013-07-02

申请号：US13619779

申请日：2012-09-14

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.