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51. 发明申请

WO2016055484A1 METHOD AND APPARATUS FOR VECTOR ENCODING IN VIDEO CODING AND DECODING 审中-公开
标题翻译：用于视频编码和解码的矢量编码的方法和装置
公开(公告)号：WO2016055484A1
公开(公告)日：2016-04-14
申请号：PCT/EP2015/073060
申请日：2015-10-06
申请人： CANON KABUSHIKI KAISHA , CANON EUROPE LTD
发明人： LAROCHE, Guillaume , GISQUET, Christophe , ONNO, Patrice
IPC分类号： H04N19/105 , H04N19/593 , H04N19/156 , H04N19/174 , H04N19/436 , H04N19/176
CPC分类号： H04N19/105 , H04N19/156 , H04N19/174 , H04N19/176 , H04N19/436 , H04N19/593
摘要： The present invention concerns a method and a device for encoding or decoding blocks of pixelsin the process of encoding or decoding a video. It concerns more particularly methods to handle parallelization when using INTRA Block Copy mode of HEVC Screen Content extension. It is based on the control of the area available for providing predictor blocks in INTRA Block Copy mode. Accordingly, Accordingly, the implementation is simple in order to allow parallelized process.
摘要翻译：本发明涉及一种在视频编码或解码过程中对像素块进行编码或解码的方法和装置。当使用HEVC屏幕内容扩展的INTRA块复制模式时，它更特别地涉及处理并行化的方法。它是基于可用于在INTRA块复制模式中提供预测块的区域的控制。因此，因此，为了允许并行处理，实现是简单的。

52. 发明申请

WO2015086718A2 METHOD AND APPARATUS FOR ENCODING OR DECODING BLOCKS OF PIXEL 审中-公开
标题翻译：用于编码或解码像素块的方法和装置
公开(公告)号：WO2015086718A2
公开(公告)日：2015-06-18
申请号：PCT/EP2014/077297
申请日：2014-12-10
申请人： CANON KABUSHIKI KAISHA , CANON EUROPE LTD
发明人： LAROCHE, Guillaume , GISQUET, Christophe , ONNO, Patrice
IPC分类号： H04N19/463
CPC分类号： H04N19/186 , H04N19/176 , H04N19/463 , H04N19/593 , H04N19/94
摘要： The invention concerns a method and a device for processing a current pixel block of an image using a palette prediction mode according to HEVC RExt. The mode uses a current palette to build a predictor block of indexes to predict the current pixel block. The current palette comprises entries associating entry indexes with pixel values. The method comprises predicting the current palette from entries of two or more palettes that are palettes previously used to process blocks of pixels. A palette predictor may be used that is built from the two or more palettes, preferably from the last used palette for a coding unit in the current coding entity and from the previously used palette for which a flag bitmap indicates whether or not its elements have been copied into the last used palette. Accordingly, the coding of the palette mode is improved.
摘要翻译：本发明涉及一种使用根据HEVC REXT的调色板预测模式来处理图像的当前像素块的方法和装置。该模式使用当前调色板来构建索引的预测块来预测当前像素块。当前调色板包括将条目索引与像素值相关联的条目。该方法包括从先前用于处理像素块的调色板的两个或更多个调色板的条目预测当前调色板。可以使用从两个或更多个调色板构建的调色板预测器，优选地来自当前编码实体中的编码单元的最后使用的调色板，以及来自标记位图指示其元素是否已经被使用的先前使用的调色板复制到最后使用的调色板。因此，提高了调色板模式的编码。

53. 发明申请

WO2015086717A2 IMPROVED PALETTE MODE IN HEVC 审中-公开
标题翻译：改进了HEVC中的调色板模式
公开(公告)号：WO2015086717A2
公开(公告)日：2015-06-18
申请号：PCT/EP2014/077296
申请日：2014-12-10
申请人： CANON KABUSHIKI KAISHA , CANON EUROPE LTD
发明人： LAROCHE, Guillaume , GISQUET, Christophe , ONNO, Patrice
IPC分类号： H04N19/50
CPC分类号： H04N19/463 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/93
摘要： A method for determining encoding parameters for encoding indexes of a block of indexes used for encoding a coding unit of an image according to a palette, each index being related to one of the pixels forming the coding unit, the palette comprising a set of indexes associated to pixel values. The method comprises: - generating each index of the block of indexes related to the coding unit from the palette based on corresponding encoding parameters, and - if indexes of the block of indexes cannot be generated from the palette for at least one pixels of the coding unit, generating index values corresponding to escape values for replacing said indexes of the block of indexes which cannot be generated, wherein encoding parameters corresponding to an index are determined according to the spatial neighbourhood of said pixel regarding to an encoding order.
摘要翻译：一种用于根据调色板来确定用于编码用于对图像的编码单元进行编码的索引块的索引的编码参数的编码参数的方法，每个索引与形成编码单元的像素中的一个相关，调色板包括与像素值相关联的一组索引。该方法包括： - 基于相应的编码参数，从调色板生成与编码单元相关的索引块的每个索引，以及 - 如果编码的至少一个像素不能从调色板生成索引块的索引生成对应于转义值的索引值，以替换不能生成的索引块的所述索引，其中根据关于编码顺序的所述像素的空间邻域确定与索引对应的编码参数。

54. 发明申请

WO2014161741A1 METHOD AND DEVICE FOR DETERMINING THE VALUE OF A QUANTIZATION PARAMETER 审中-公开
标题翻译：用于确定定量参数值的方法和装置
公开(公告)号：WO2014161741A1
公开(公告)日：2014-10-09
申请号：PCT/EP2014/055863
申请日：2014-03-24
申请人： CANON KABUSHIKI KAISHA , CANON EUROPE LIMITED
发明人： FRANCOIS, Edouard , LAROCHE, Guillaume , ONNO, Patrice , GISQUET, Christophe
IPC分类号： H04N19/124 , H04N19/162 , H04N19/186
CPC分类号： H04N19/124 , H04N19/162 , H04N19/17 , H04N19/186 , H04N19/463
摘要： The value of a quantization parameter for at least one second color component of an image or image portion is determined using a current color format among several possible color formats. The determination comprises the steps of selecting at least one function associated with a possible color format, and determining the value of the quantization parameter for the second color component by applying said at least one function to a value of an intermediate quantization parameter which is based on the value of the quantization parameter of the first color component of the image or image portion. The at least one function is selected independently from the current color format.
摘要翻译：使用几种可能的颜色格式中的当前颜色格式来确定图像或图像部分的至少一个第二颜色分量的量化参数的值。确定包括以下步骤：选择与可能的颜色格式相关联的至少一个功能，以及通过将所述至少一个功能应用于基于以下的中间量化参数的值来确定第二颜色分量的量化参数的值图像或图像部分的第一颜色分量的量化参数的值。独立于当前颜色格式选择至少一个功能。

55. 发明申请

WO2014106746A1 METHOD AND DEVICE FOR PROCESSING PREDICTION INFORMATION FOR ENCODING AN IMAGE 审中-公开
标题翻译：用于处理编码图像的预测信息的方法和装置
公开(公告)号：WO2014106746A1
公开(公告)日：2014-07-10
申请号：PCT/GB2014/050006
申请日：2014-01-02
申请人： CANON KABUSHIKI KAISHA , CANON EUROPE LTD
发明人： EDOUARD, Francois , ONNO, Patrice , GISQUET, Christophe , LAROCHE, Guillaume
IPC分类号： H04N19/187 , H04N19/33 , H04N19/463 , H04N19/11
CPC分类号： H04N19/11 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/463 , H04N19/593
摘要： A method of providing a mode value representing a prediction mode of at least part of an image to be encoded, the image being composed of a plurality of processing blocks, each processing block being predictable by applying a prediction mode of a plurality M of available prediction modes, the method comprising: determining first data indicative of a first set of n most probable prediction modes, from the plurality M of available prediction modes, for predicting the said at least part of an image; determining, for the case where a most probable prediction mode is not used, second data representative of a second set of prediction modes of the plurality M of available prediction modes wherein the second set of prediction modes comprise a restricted number N of prediction modes of the M available prediction modes, the prediction modes of the second set being selected from the M available prediction modes according to a predefined condition.
摘要翻译：一种提供表示要编码的图像的至少一部分的预测模式的模式值的方法，所述图像由多个处理块组成，每个处理块可通过应用多个可用预测M的预测模式来预测模式，所述方法包括：从所述可用预测模式的多个M中确定指示n个最可能的预测模式的第一组的第一数据，以预测所述至少部分图像; 确定对于不使用最可能的预测模式的情况，表示可用预测模式的多个M的第二组预测模式的第二数据，其中第二组预测模式包括限制数量N的预测模式 M个可用预测模式，根据预定义条件，从M个可用预测模式中选择第二组的预测模式。

56. 发明公开

EP4422177A2 METHOD AND APPARATUS FOR ENCODING OR DECODING VIDEO DATA IN FRUC MODE WITH REDUCED MEMORY ACCESSES 审中-公开
公开(公告)号：EP4422177A2
公开(公告)日：2024-08-28
申请号：EP24169286.2
申请日：2018-06-22
申请人： Canon Kabushiki Kaisha
发明人： LAROCHE, Guillaume , ONNO, Patrice , TAQUET, Jonathan , GISQUET, Christophe
IPC分类号： H04N19/513
CPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/433 , H04N19/52 , H04N19/587
摘要： The present disclosure concerns a method and a device for encoding or decoding video data. It concerns more particularly the encoding according to a particular encoding mode using a decoder side motion vector derivation mode referenced as frame-rate up conversion mode or FRUC mode.
It concerns encoding and decoding improvement which reduce the need for memory accesses when using an encoding mode where the motion information is predicted using a decoder side motion vector derivation method.

57. 发明公开

EP3900352A1 ENCODING AND DECODING INFORMATION ABOUT A MOTION INFORMATION PREDICTOR 审中-实审
公开(公告)号：EP3900352A1
公开(公告)日：2021-10-27
申请号：EP19806202.8
申请日：2019-11-19
申请人： CANON KABUSHIKI KAISHA
发明人： LAROCHE, Guillaume , GISQUET, Christophe , ONNO, Patrice , TAQUET, Jonathan
IPC分类号： H04N19/463 , H04N19/52 , H04N19/91

58. 发明公开

EP3854094A1 VIDEO CODING AND DECODING 审中-实审
公开(公告)号：EP3854094A1
公开(公告)日：2021-07-28
申请号：EP19770081.8
申请日：2019-09-18
申请人： CANON KABUSHIKI KAISHA
发明人： LAROCHE, Guillaume , GISQUET, Christophe , ONNO, Patrice , TAQUET, Jonathan
IPC分类号： H04N19/52 , H04N19/54 , H04N19/70 , H04N19/91

59. 发明公开

EP3518544A1 VIDEO ENCODING AND DECODING WITH IMPROVED MOTION VECTOR DIVERSITY 有权
公开(公告)号：EP3518544A1
公开(公告)日：2019-07-31
申请号：EP19157140.5
申请日：2012-01-11
申请人： CANON KABUSHIKI KAISHA
发明人： GISQUET, Christophe , LAROCHE, Guillaume
IPC分类号： H04N19/52 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/103 , H04N19/192 , H04N19/65 , H04N19/89
摘要： For an image portion to decode an initial set of motion information predictors is obtained (S502). It is tested (S512) whether the number (N) of motion information predictors in the initial set is lower than a target number (Nmax) and, if so, one or more motion information predictors are added (S516) to the initial set to generate a set of motion information predictors. The motion information predictors of the initial set are actual motion information predictors, having motion vectors obtained from image portions of the image being encoded or of a reference image, and potential motion information predictors for addition include one or more further such actual motion information predictors and also include one or more virtual motion information predictors not having motion vectors obtained from image portions of said image being encoded or of a reference image. A motion information predictor for the image portion to decode is selected from the generated set of motion information predictors.

60. 发明授权

EP2982115B1 METHOD AND APPARATUS FOR ENCODING OR DECODING AN IMAGE WITH INTER LAYER MOTION INFORMATION PREDICTION ACCORDING TO MOTION INFORMATION COMPRESSION SCHEME 有权
公开(公告)号：EP2982115B1
公开(公告)日：2019-05-08
申请号：EP14712654.4
申请日：2014-03-24
申请人： CANON KABUSHIKI KAISHA
发明人： GISQUET, Christophe , ONNO, Patrice , LAROCHE, Guillaume , FRANCOIS, Edouard
IPC分类号： H04N19/52 , H04N19/463 , H04N19/31

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