公开(公告)号：US10075707B2

公开(公告)日：2018-09-11

申请号：US14003789

申请日：2012-03-08

申请人： Guillaume Laroche ,  Edouard Francois ,  Patrice Onno

发明人： Guillaume Laroche ,  Edouard Francois ,  Patrice Onno

IPC分类号： H04N19/51 ,  H04N19/52 ,  H04N19/139 ,  H04N19/513 ,  H04N19/43

CPC分类号： H04N19/50 ,  H04N19/139 ,  H04N19/43 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52

摘要： Motion vectors of a first reference frame are permitted to point to a plurality of further reference frames. A method of storing the motion vectors comprises, when a block of the first reference frame has two motion vectors initially, selecting one of the two motion vectors, the non-selected motion vector not being stored. The selected motion vector may be scaled. This can reduce the motion vector memory size.

公开(公告)号：US09930332B2

公开(公告)日：2018-03-27

申请号：US14344315

申请日：2012-09-12

申请人： Edouard Francois ,  Guillaume Laroche ,  Patrice Onno

发明人： Edouard Francois ,  Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/196 ,  H04N19/593 ,  H04N19/463 ,  H04N19/52

CPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593

摘要： Reference prediction mode values, also referred to as most probable modes, usable for encoding or decoding of a prediction mode related to a current coding unit, are derived. First and second reference prediction mode values are derived (S402) from respective prediction modes of at least two neighboring coding units of the current coding unit. The first and second reference prediction modes are different. A third reference prediction mode value is derived (S403) from the first and second reference prediction mode values. The third reference prediction mode is different from each of said first and second reference prediction mode values.By deriving three MPMs instead of two for comparison with the prediction mode of the current coding block the coding efficiency is improved. This is due to the increase in the probability that the prediction mode of the current coding block corresponds to one of the derived most probable modes.

公开(公告)号：US08824555B2

公开(公告)日：2014-09-02

申请号：US14003564

申请日：2012-03-08

申请人： Guillaume Laroche ,  Patrice Onno

发明人： Guillaume Laroche ,  Patrice Onno

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N7/50 ,  H04N7/26

CPC分类号： H04N19/503 ,  H04N19/105 ,  H04N19/107 ,  H04N19/139 ,  H04N19/176 ,  H04N19/43 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61

摘要： A temporal motion vector predictor is includable, together with one or more spatial motion vector predictors, in a set of motion vector predictors for a block to encode of a current frame. A method of determining the temporal motion vector predictor comprises selecting as the temporal predictor one motion vector from among motion vectors in a reference block of a reference frame different from the current frame. The reference block is a block of the reference frame collocated with the block to encode or a block of the reference frame neighboring the collocated block. The selection is based on a diversity criterion for achieving diversity among the predictors of the set.This can reduce the motion vector memory requirements with no or no significant additional coding efficiency penalty. Alternatively, even if the motion vector memory is not reduced in size, coding efficiency improvements can be achieved.

摘要翻译： 时间运动矢量预测器可与一个或多个空间运动矢量预测器一起包含在用于编码当前帧的块的一组运动矢量预测器中。 确定时间运动矢量预测器的方法包括从与当前帧不同的参考帧的参考块中的运动矢量中选择一个运动矢量作为时间预测器。 参考块是与要编码的块并置的参考帧的块或与并置块相邻的参考帧的块。 该选择基于用于在集合的预测器之间实现多样性的分集标准。 这可以减少运动矢量存储器的需求，没有或没有显着的附加编码效率损失。 或者，即使运动矢量存储器的尺寸没有减小，也可以实现编码效率的提高。

公开(公告)号：US20140169476A1

公开(公告)日：2014-06-19

申请号：US14123941

申请日：2012-06-05

申请人： Guillaume Laroche ,  Patrice Onno

发明人： Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N19/503 ,  H04N19/51

CPC分类号： H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/65 ,  H04N19/70 ,  H04N19/89

摘要： A method and device for deriving motion information of an image portion of an image predicted by motion prediction with respect to at least one reference image, the method comprising for said image portion: obtaining a number i of motion information predictors 808 of a second set of motion information predictors 814 taken from a first set of motion information predictors for decoding the image portion; generating said second set of motion information predictors 814 consisting of said number i of motion information predictors, wherein there are no duplicates among the i motion information predictors of said second set. A method and device for of decoding a bitstream, and a method and device for encoding a sequence of image including a method for deriving motion information of an image portion of an image predicted by motion prediction with respect to at least one reference image as described above.

摘要翻译： 一种用于导出关于至少一个参考图像通过运动预测预测的图像的图像部分的运动信息的方法和装置，所述方法包括用于所述图像部分：获得第二组的运动信息预测器808的数量i 运动信息预测器814取自用于解码图像部分的第一组运动信息预测器; 生成由运动信息预测器的所述数量i组成的所述第二组运动信息预测器814，其中在所述第二组的i个运动信息预测器中不存在重复。 一种用于对比特流进行解码的方法和装置，以及用于编码图像序列的方法和装置，所述方法和装置包括用于导出如上所述的关于至少一个参考图像的通过运动预测预测的图像的图像部分的运动信息的方法 。

公开(公告)号：US09648341B2

公开(公告)日：2017-05-09

申请号：US13346012

申请日：2012-01-09

申请人： Guillaume Laroche ,  Patrice Onno

发明人： Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N7/12 ,  H04N19/52

CPC分类号： H04N5/145 ,  H04N19/139 ,  H04N19/513 ,  H04N19/52 ,  H04N19/527 ,  H04N19/53 ,  H04N19/533 ,  H04N19/55 ,  H04N19/57 ,  H04N19/573

摘要： A portion of an image, belonging to a current encoding unit, is encoded by motion compensation with respect to a reference image portion indicated by an item of motion information. A motion information predictor is selected from among a set of motion information predictors and the item of motion information is encoded with respect to said motion information predictor. The set of motion information predictors used is permitted to include at least one temporal motion information predictor associated with an image portion of a previous image of said sequence but is not permitted to include any spatial motion information predictor that is unobtainable from encoded data of said current encoding unit, for example a spatial motion information predictor that was itself encoded with respect to a temporal motion information predictor.

公开(公告)号：US09532070B2

公开(公告)日：2016-12-27

申请号：US13500609

申请日：2010-10-13

申请人： Guillaume Laroche ,  Patrice Onno

发明人： Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N7/32 ,  H04N7/26 ,  H04N19/573 ,  H04N19/105 ,  H04N19/176 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/126 ,  H04N19/18

CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/126 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/61

摘要： The present invention concerns a method and device (10, 20) for the processing, in particular coding or decoding or more generally compression or decompression, of a video sequence (110) consisting of a series of digital images (401 to 407) comprising a current image (401) to process. The method comprises the steps consisting of: —generating (511, 603, 720, 812) a first reconstruction of a first image (402 to 404) in the sequence, so as to obtain a first reference image (517, 610, 717, 810); —generating (519, 612, 720, 812) a second reconstruction of the first image (402 to 404) different from the first reconstruction, so as to obtain a second reference image (518, 611, 718, 811); and—predicting (505, 606, 705, 806) at least part of said current image (401) from at least one reference image selected from the generated first and second reference images (516, 608, 716, 808).

摘要翻译： 本发明涉及一种用于处理特别是编码或解码或更一般地压缩或解压缩包括一系列数字图像（401至407）的视频序列（110）的方法和装置（10,20），包括： 当前图像（401）进行处理。 该方法包括以下步骤： - 产生（511,603,720,812）序列中的第一图像（402至404）的第一重建，以便获得第一参考图像（517,610,717,812） 810）; （519,612,720,812）与第一重建不同的第一图像（402至404）的第二重建，以便获得第二参考图像（518,611,718,811）; 以及从所生成的第一和第二参考图像（516,608,716,808）中选择的至少一个参考图像来预测（505,606,705,806）所述当前图像（401）的至少一部分。

公开(公告)号：US20150010054A1

公开(公告)日：2015-01-08

申请号：US14344315

申请日：2012-09-12

申请人： Edouard Francois ,  Guillaume Laroche ,  Patrice Onno

发明人： Edouard Francois ,  Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/51 ,  H04N19/159

CPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593

摘要： Reference prediction mode values, also referred to as most probable modes, usable for encoding or decoding of a prediction mode related to a current coding unit, are derived. First and second reference prediction mode values are derived (S402) from respective prediction modes of at least two neighbouring coding units of the current coding unit. The first and second reference prediction modes are different. A third reference prediction mode value is derived (S403) from the first and second reference prediction mode values. The third reference prediction mode is different from each of said first and second reference prediction mode values.By deriving three MPMs instead of two for comparison with the prediction mode of the current coding block the coding efficiency is improved. This is due to the increase in the probability that the prediction mode of the current coding block corresponds to one of the derived most probable modes.

摘要翻译： 导出可用于编码或解码与当前编码单元相关的预测模式的参考预测模式值，也称为最可能模式。 从当前编码单元的至少两个相邻编码单元的各个预测模式导出第一和第二参考预测模式值（S402）。 第一和第二参考预测模式是不同的。 从第一和第二参考预测模式值导出第三参考预测模式值（S403）。 第三参考预测模式与所述第一和第二参考预测模式值中的每一个不同。 通过导出三个MPM而不是两个用于与当前编码块的预测模式进行比较，编码效率得到改善。 这是由于当前编码块的预测模式对应于所导出的最可能模式之一的概率的增加。

公开(公告)号：US20140064372A1

公开(公告)日：2014-03-06

申请号：US14003564

申请日：2012-03-08

申请人： Guillaume Laroche ,  Patrice Onno

发明人： Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N7/36

CPC分类号： H04N19/503 ,  H04N19/105 ,  H04N19/107 ,  H04N19/139 ,  H04N19/176 ,  H04N19/43 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61

摘要： A temporal motion vector predictor is includable, together with one or more spatial motion vector predictors, in a set of motion vector predictors for a block to encode of a current frame. A method of determining the temporal motion vector predictor comprises selecting as the temporal predictor one motion vector from among motion vectors in a reference block of a reference frame different from the current frame. The reference block is a block of the reference frame collocated with the block to encode or a block of the reference frame neighboring the collocated block. The selection is based on a diversity criterion for achieving diversity among the predictors of the set.This can reduce the motion vector memory requirements with no or no significant additional coding efficiency penalty. Alternatively, even if the motion vector memory is not reduced in size, coding efficiency improvements can be achieved.

摘要翻译： 时间运动矢量预测器可与一个或多个空间运动矢量预测器一起包含在用于编码当前帧的块的一组运动矢量预测器中。 确定时间运动矢量预测器的方法包括从与当前帧不同的参考帧的参考块中的运动矢量中选择一个运动矢量作为时间预测器。 参考块是与要编码的块并置的参考帧的块或与并置块相邻的参考帧的块。 该选择基于用于在集合的预测器之间实现多样性的分集标准。 这可以减少运动矢量存储器的需求，没有或没有显着的附加编码效率损失。 或者，即使运动矢量存储器的尺寸没有减小，也可以实现编码效率的提高。

公开(公告)号：US20140064369A1

公开(公告)日：2014-03-06

申请号：US14003789

申请日：2012-03-08

申请人： Guillaume Laroche ,  Edourard Francois ,  Patrice Onno

发明人： Guillaume Laroche ,  Edourard Francois ,  Patrice Onno

IPC分类号： H04N7/36

CPC分类号： H04N19/00696 ,  H04N19/139 ,  H04N19/43 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52

摘要： Motion vectors of a first reference frame are permitted to point to a plurality of further reference frames. A method of storing the motion vectors comprises, when a block of the first reference frame has two motion vectors initially, selecting one of the two motion vectors, the non-selected motion vector not being stored. The selected motion vector may be scaled. This can reduce the motion vector memory size.

摘要翻译： 允许第一参考帧的运动矢量指向多个另外的参考帧。 存储运动矢量的方法包括：当第一参考帧的块最初具有两个运动矢量时，选择两个运动矢量中的一个，未被存储的未选择的运动矢量。 所选择的运动矢量可以被缩放。 这可以减少运动矢量内存大小。

公开(公告)号：US20120207210A1

公开(公告)日：2012-08-16

申请号：US13500609

申请日：2010-10-13

申请人： Guillaume Laroche ,  Patrice Onno

发明人： Guillaume Laroche ,  Patrice Onno

IPC分类号： H04N7/32 ,  H04N7/26

CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/126 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/61

摘要： The present invention concerns a method and device (10, 20) for the processing, in particular coding or decoding or more generally compression or decompression, of a video sequence (110) consisting of a series of digital images (401 to 407) comprising a current image (401) to process. The method comprises the steps consisting of: —generating (511, 603, 720, 812) a first reconstruction of a first image (402 to 404) in the sequence, so as to obtain a first reference image (517, 610, 717, 810); —generating (519, 612, 720, 812) a second reconstruction of the first image (402 to 404) different from the first reconstruction, so as to obtain a second reference image (518, 611, 718, 811); and—predicting (505, 606, 705, 806) at least part of said current image (401) from at least one reference image selected from the generated first and second reference images (516, 608, 716, 808).

摘要翻译： 本发明涉及一种用于处理特别是编码或解码或更一般地压缩或解压缩包括一系列数字图像（401至407）的视频序列（110）的方法和装置（10,20），包括： 当前图像（401）进行处理。 该方法包括以下步骤： - 产生（511,603,720,812）序列中的第一图像（402至404）的第一重建，以便获得第一参考图像（517,610,717,812） 810）; （519,612,720,812）与第一重建不同的第一图像（402至404）的第二重建，以便获得第二参考图像（518,611,718,811）; 以及从所生成的第一和第二参考图像（516,608,716,808）中选择的至少一个参考图像来预测（505,606,705,806）所述当前图像（401）的至少一部分。