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公开(公告)号：EP4254956A3
公开(公告)日：2023-12-20
申请号：EP23192256.8
申请日：2011-03-09
IPC分类号： H04N19/426 , H04N19/52 , H04N19/51
摘要： An image decoding method of dividing an input image signal into pixel blocks, and performing inter prediction on divided pixel blocks, comprising:
selecting predicted motion information (2755) from a plurality of motion information in decoded regions, based on information acquired in accordance with first information regarding a method of selecting the predicted motion information; and
predicting motion information (2559) of a decoding target block by using the predicted motion information,
wherein the first information includes second information for specifying a position in the decoding target block, the position in the decoding target block being used to select the motion information, and
the position in the decoding target block being used to select the motion information is set based on whether a representative motion information position used to derive the motion information is outside of a picture.-
公开(公告)号：EP3672238A1
公开(公告)日：2020-06-24
申请号：EP20156188.3
申请日：2011-11-08
发明人： CHUJOH, Takeshi , YAMAKAGE, Tomoo
IPC分类号： H04N11/04 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/157 , H04N19/577 , H04N19/513 , G06T9/00 , H04N19/117 , H04N19/186 , H04N19/523 , H04N19/59
摘要： The present invention aims to reduce a memory bandwidth during image coding. An image coding method includes an acquiring step and a generating step. The acquiring step includes acquiring a reference image. The generating step includes generating a predicted image having resolution larger than that of the reference image, by performing an interpolation to the acquired reference image according to a motion vector for each of the luminance component and the color difference component. The generating step includes generating the predicted image having the color difference component without performing a specific interpolation that means the interpolation processing in which a number of pixels to be accessed in the reference image is large, when a size of a block designated as a unit of the interpolation is smaller than a predetermined threshold value.
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3.发明公开
公开(公告)号：EP2779647A1
公开(公告)日：2014-09-17
申请号：EP11875421.7
申请日：2011-11-08
发明人： CHUJOH, Takeshi , YAMAKAGE, Tomoo
CPC分类号： H04N19/44 , G06T9/004 , H04N19/117 , H04N19/136 , H04N19/137 , H04N19/186 , H04N19/513 , H04N19/52 , H04N19/523 , H04N19/567 , H04N19/59
摘要： The present invention aims to reduce a memory bandwidth during image coding. An image coding method includes an acquiring step and a generating step. The acquiring step includes acquiring a reference image. The generating step includes generating a predicted image having resolution larger than that of the reference image, by performing an interpolation to the acquired reference image according to a motion vector for each of the luminance component and the color difference component. The generating step includes generating the predicted image having the color difference component without performing a specific interpolation that means the interpolation processing in which a number of pixels to be accessed in the reference image is large, when a size of a block designated as a unit of the interpolation is smaller than a predetermined threshold value.
摘要翻译： 本发明旨在减少图像编码期间的存储器带宽。 图像编码方法包括获取步骤和生成步骤。 获取步骤包括获取参考图像。 生成步骤包括通过根据每个亮度分量和色差分量的运动矢量对所获取的参考图像执行插值，生成具有比参考图像的分辨率大的分辨率的预测图像。 该生成步骤包括：生成具有色差分量的预测图像，而不执行特定内插，即指定为参考图像中要访问的像素数量大的内插处理，当指定为单位的块的大小 内插小于预定阈值。
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公开(公告)号：EP4254956A2
公开(公告)日：2023-10-04
申请号：EP23192256.8
申请日：2011-03-09
IPC分类号： H04N19/52
摘要： An image decoding method of dividing an input image signal into pixel blocks, and performing inter prediction on divided pixel blocks, comprising:
selecting predicted motion information (2755) from a plurality of motion information in decoded regions, based on information acquired in accordance with first information regarding a method of selecting the predicted motion information; and
predicting motion information (2559) of a decoding target block by using the predicted motion information,
wherein the first information includes second information for specifying a position in the decoding target block, the position in the decoding target block being used to select the motion information, and
the position in the decoding target block being used to select the motion information is set based on whether a representative motion information position used to derive the motion information is outside of a picture.-
公开(公告)号：EP3681160A1
公开(公告)日：2020-07-15
申请号：EP20160171.3
申请日：2011-03-09
IPC分类号： H04N19/426 , H04N19/52 , H04N19/51
摘要： A decoding method performed at least partially by electronic circuitry, comprising:
inputting encoded data comprising at least a target block in a first frame;
decoding a merge flag specifying whether at least a motion vector of an inter prediction mode is inferred from a merging block;
deriving a first candidate motion vector from at least one neighboring block of the target block in the first frame, when the merge flag specifies that at least the motion vector of the inter prediction mode is inferred from the merging block, wherein the at least one neighboring block of the target block comprises at least one of (1) a block on bottom left side of the target block, (2) a block on left side of the target block, (3) a block on upper right side of the target block, (4) a block on upper side of the target block, or (5) a block on upper left side of the target block;
deriving a second candidate motion vector from a collocated block in a second frame different from the first frame, when the merge flag specifies that at least the motion vector of the inter prediction mode is inferred from the merging block, wherein the collocated block is selected according to a center position of the target block or a corner position of the target block, and information specifying whether the collocated block is selected according to the center position of the target block or the corner position of the target block is derived based on at least one of a position or a size of the target block;
decoding a merge index specifying the merging block from the at least one neighboring block and the collocated block; and
deriving a first motion vector for the target block from any one of the first candidate motion vector and the second candidate motion vector according to the merge index.-
公开(公告)号：EP3280139A1
公开(公告)日：2018-02-07
申请号：EP17188018.0
申请日：2011-11-08
发明人： CHUJOH, Takeshi , YAMAKAGE, Tomoo
IPC分类号： H04N11/04 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/157 , H04N19/577 , H04N19/513 , G06T9/00 , H04N19/117 , H04N19/186 , H04N19/523 , H04N19/59
摘要： The present invention aims to reduce a memory bandwidth during image coding. An image coding method includes an acquiring step and a generating step. The acquiring step includes acquiring a reference image. The generating step includes generating a predicted image having resolution larger than that of the reference image, by performing an interpolation to the acquired reference image according to a motion vector for each of the luminance component and the color difference component. The generating step includes generating the predicted image having the color difference component without performing a specific interpolation that means the interpolation processing in which a number of pixels to be accessed in the reference image is large, when a size of a block designated as a unit of the interpolation is smaller than a predetermined threshold value.
摘要翻译： 本发明旨在减少图像编码期间的存储器带宽。 图像编码方法包括获取步骤和生成步骤。 获取步骤包括获取参考图像。 产生步骤包括通过根据针对亮度分量和色差分量中的每一个的运动向量对获取的参考图像执行插值来产生分辨率大于参考图像的分辨率的预测图像。 生成步骤包括：生成具有色差分量的预测图像，而不执行特定内插，该特定内插意味着当参考图像中要访问的像素的数量大的插值处理时，当被指定为 插值小于预定的阈值。
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公开(公告)号：EP2685717A1
公开(公告)日：2014-01-15
申请号：EP11860461.0
申请日：2011-03-09
IPC分类号： H04N7/32
CPC分类号： H04N19/51 , H04N19/428 , H04N19/52
摘要： According to one embodiment, disclosed is a method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.
摘要翻译： 。根据一个实施例，盘游离缺失是分割输入图像信号划分成像素块，并且对分割的像素块执行帧间预测的方法。 此方法包括选择从运动信息缓冲器中存储在运动中编码的区域信息来预测的运动信息，并且通过使用预测的运动信息预测编码对象块的运动信息。 该方法包括：获取从运动信息项的多个另外的代表性的运动信息中，以编码的区域在雅舞蹈与第一信息，其指示选择的预测运动信息的方法，从而获得仅代表的运动信息。
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公开(公告)号：EP4199508A1
公开(公告)日：2023-06-21
申请号：EP23156668.8
申请日：2011-11-08
发明人： CHUJOH, Takeshi , YAMAKAGE, Tomoo
IPC分类号： H04N11/04 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/157 , H04N19/577 , H04N19/513 , G06T9/00 , H04N19/117 , H04N19/186 , H04N19/523 , H04N19/59
摘要： The present invention aims to reduce a memory bandwidth during image coding. An image coding method includes an acquiring step and a generating step. The acquiring step includes acquiring a reference image. The generating step includes generating a predicted image having resolution larger than that of the reference image, by performing an interpolation to the acquired reference image according to a motion vector for each of the luminance component and the color difference component. The generating step includes generating the predicted image having the color difference component without performing a specific interpolation that means the interpolation processing in which a number of pixels to be accessed in the reference image is large, when a size of a block designated as a unit of the interpolation is smaller than a predetermined threshold value.
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公开(公告)号：EP3280139B1
公开(公告)日：2020-03-18
申请号：EP17188018.0
申请日：2011-11-08
发明人： CHUJOH, Takeshi , YAMAKAGE, Tomoo
IPC分类号： H04N11/04 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/157 , H04N19/577 , H04N19/513 , G06T9/00 , H04N19/117 , H04N19/186 , H04N19/523 , H04N19/59
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公开(公告)号：EP2779647B1
公开(公告)日：2018-03-07
申请号：EP11875421.7
申请日：2011-11-08
发明人： CHUJOH, Takeshi , YAMAKAGE, Tomoo
IPC分类号： H04N11/04 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/157 , H04N19/577 , H04N19/513 , G06T9/00 , H04N19/117 , H04N19/186 , H04N19/523 , H04N19/59
CPC分类号： H04N19/44 , G06T9/004 , H04N19/117 , H04N19/136 , H04N19/137 , H04N19/186 , H04N19/513 , H04N19/52 , H04N19/523 , H04N19/567 , H04N19/59
摘要： The present invention aims to reduce a memory bandwidth during image coding. An image coding method includes an acquiring step and a generating step. The acquiring step includes acquiring a reference image. The generating step includes generating a predicted image having resolution larger than that of the reference image, by performing an interpolation to the acquired reference image according to a motion vector for each of the luminance component and the color difference component. The generating step includes generating the predicted image having the color difference component without performing a specific interpolation that means the interpolation processing in which a number of pixels to be accessed in the reference image is large, when a size of a block designated as a unit of the interpolation is smaller than a predetermined threshold value.
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