公开(公告)号：EP2938073A1

公开(公告)日：2015-10-28

申请号：EP14305605.9

申请日：2014-04-24

申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

发明人： Thoreau, Dominique ,  Cherigui, Safa ,  Alain, Martin ,  Guillotel, Philippe ,  Guillemot, Christine

IPC分类号： H04N19/117 ,  H04N19/14 ,  H04N19/105 ,  H04N19/176 ,  H04N19/61 ,  H04N19/11 ,  H04N19/593

CPC分类号： H04N19/593 ,  H04N19/129 ,  H04N19/136 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61

摘要： A method for decoding a picture divided into blocks is disclosed. The method comprises at least one iteration of:
a) determining (S20) for at least two blocks adjacent to a reconstructed part of the picture a priority level responsive at least to directional gradients computed in a causal neighborhood of said block; and
b) decoding (S22) a part of the picture comprising the block whose priority level is the highest.

摘要翻译： 公开了一种分割成块的图像解码方法。 该方法包括以下步骤中的至少一个迭代：a）确定（S20）至少与图像的重建部分相邻的块，优先级至少响应于在所述块的因果邻域中计算的定向梯度; 以及b）解码（S22）包括优先级最高的块的图像的一部分。

公开(公告)号：EP2922289A1

公开(公告)日：2015-09-23

申请号：EP15159305.0

申请日：2015-03-17

申请人： Thomson Licensing

发明人： Boitard, Ronan ,  Thoreau, Dominique ,  Olivier, Yannick ,  Guillotel, Philippe

IPC分类号： H04N5/232 ,  H04N5/235 ,  H04N5/243

CPC分类号： G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/23238 ,  H04N5/2351 ,  H04N5/243

摘要： The invention relates to a method for processing a video sequence formed by at least two video images, said method comprising:
- obtaining (13) said at least two video images using a first capture module (120, 41) with a first field of view (C1), each video image representing a same scene captured at differents instants or from different points of view,

wherein said method comprises:
- determining (15) luminance information from at least one overall image obtained by a second capture module (121, 42) with a second field of view greater than said first field of view, said overall image representing the scene captured at different instants or from different points of view;,
- down-converting (16) a dynamic range of said video images taking into account said luminance information.

摘要翻译： 本发明涉及一种方法，用于处理由所述至少两个视频图像构成的视频序列，所述方法包括： - 获得（13）所述使用第一捕获模块（120，41），用第一视场的至少两个视频图像 （C1），表示在型动物时刻或从不同的观点，worin所述方法拍摄的同一场景中的每个视频图像的步骤包括： - 确定（15）的亮度从至少一个整体图像由第二捕获模块获得的信息（121，42 ）的视比所述的第一视场大的第二场，所述整体图像表示在不同的时刻或从不同的观点捕获的场景; - 降频转换（16）考虑到所述视频图像的动态范围 说的亮度信息。

公开(公告)号：EP2922288A1

公开(公告)日：2015-09-23

申请号：EP14305379.1

申请日：2014-03-18

申请人： Thomson Licensing

发明人： Boitard, Ronan ,  Thoreau, Dominique ,  Olivier, Yannick ,  Guillotel, Philippe

IPC分类号： H04N5/232 ,  H04N5/235 ,  H04N5/243

CPC分类号： G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/23238 ,  H04N5/2351 ,  H04N5/243

摘要： The invention relates to a method processing a video sequence, said method comprising a step of obtaining at least one image using a first capture module, said at least one image representing a scene with a first capture angle, said at least one image being called video image.
According to the invention, said method comprises the following steps:
- obtaining, by using a second capture module different from said first capture module, metadata corresponding to at least one image representing said scene with a second capture angle strictly greater than said first capture angle, said at least one image being called overall image, said overall image comprising said video image,
- determining luminance information from said metadata corresponding to said overall image,
- conversion of a dynamic range of said video image taking into account of said luminance information.

摘要翻译： 本发明涉及的方法处理视频序列，所述方法包括：使用第一捕获模块获取的至少一个图像的步骤，所述表示与第一捕获角的场景的至少一个图像，所述至少一个图像被称为视频 图像。 。根据本发明，所述方法包括以下步骤： - 获得通过使用第二捕获模块differentFrom所述第一撷取模块，元数据对应于至少一个图像表示与第二捕获角严格大于所述第一捕获角大于所述场景 中，所述至少一个图像被称为整体图像，所述整体图像包括所述视频图像， - 从所述元数据对应于所述确定的采矿亮度信息整体图像， - 所述视频图像的同时考虑到所述亮度信息的动态范围的转换。

公开(公告)号：EP2536144A1

公开(公告)日：2012-12-19

申请号：EP11305757.4

申请日：2011-06-17

申请人： Thomson Licensing

发明人： Guillotel, Philippe ,  Yannick, Oliver ,  Urban, Fabrice ,  Aribuki, Ayodeji

IPC分类号： H04N7/26 ,  H04N7/50

CPC分类号： H04N19/124 ,  H04N19/147 ,  H04N19/149 ,  H04N19/15 ,  H04N19/176 ,  H04N19/61

摘要： The invention is concerned with provision of a computationally effective rate-distortion minimization mechanism at macro-block level for compress-encoding of an image.
The invention proposes using an approximated distortion quantization curve for reducing the computational costs in determination of the quantization parameters of the macro blocks. As an instance thereof, the invention proposes a method and processing means for lossy compress encoding the image with quantization parameters adapted at macro block level. The quantization parameter of each macro block is determined using rate-distortion cost optimization with distortion costs being approximated using an approximated distortion quantization curve defined by a quantization pivot point.
Approximation of the distortion quantization curve reduces computational costs.

摘要翻译： 本发明涉及在宏块级提供计算有效的速率 - 失真最小化机制，用于图像的压缩编码。 本发明提出使用近似失真量化曲线来减少在确定宏块的量化参数时的计算成本。 作为其实例，本发明提出了一种用于利用在宏块级适配的量化参数对图像进行有损压缩编码的方法和处理装置。 使用由量化枢轴点定义的近似失真量化曲线逼近失真成本的速率失真成本优化来确定每个宏块的量化参数。 失真量化曲线的近似降低了计算成本。

公开(公告)号：EP1505837A1

公开(公告)日：2005-02-09

申请号：EP04077277.4

申请日：2004-07-30

申请人： Thomson Licensing S.A.

发明人： Thoreau, Dominique ,  Guillotel, Philippe ,  Bordes, Philippe ,  François, Edouard

IPC分类号： H04N7/26

CPC分类号： H04N19/34 ,  H04N19/115 ,  H04N19/154 ,  H04N19/176

摘要： The present invention relates to a device (210) for compressing a source image by means of a base layer, coding a base image, and of an enhancement layer, coding a residual existing between the source image and the base image, the source image and the base image being structured as blocks of pixels.
According to the invention, such a device is characterized in that it comprises means (250) for generating the enhancement layer of a block as a function of the quality of restitution of this block, determined by comparing the coding of this block in the source image with the coding of this block in the base image, and/or as a function of information coded by this block of pixels.

摘要翻译： 本发明涉及一种用于通过基本层压缩源图像，对基本图像进行编码的设备（210）和对源图像和基本图像之间存在的残差进行编码的增强层，源图像和 基本图像被构造为像素块。 根据本发明，这种装置的特征在于，其包括用于通过比较该块的编码来确定作为该块的恢复质量的函数的块的增强层的装置（250） 在源图像中具有基本图像中的该块的编码，和/或作为由该像素块编码的信息的函数。

公开(公告)号：EP0987903B1

公开(公告)日：2018-07-25

申请号：EP99402224.2

申请日：1999-09-10

申请人： Thomson Licensing DTV

发明人： Guillotel, Philippe

IPC分类号： H04N19/177 ,  H04N19/114 ,  H04N19/192 ,  H04N19/61 ,  H04N19/136

CPC分类号： H04N19/87 ,  H04N19/114 ,  H04N19/124 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/172 ,  H04N19/177 ,  H04N19/179 ,  H04N19/192 ,  H04N19/61

摘要： The invention relates to a method of image compression, especially of the MPEG2 type, in which the images are coded according to groups (GOPs) each of which comprises N images, with an I image coded in intra mode, P images predicted as a function of the intra image I or of the preceding P image, each P image being preceded and followed by n bidirectionally predicted B images, n possibly being zero. The number M = n + 1 represents the structure of the group. At least one parameter characterizing the source images which are to be coded according to a group is determined using a test coding (70), and the numbers N and M are made to depend on this parameter or these parameters. In the course of the test coding, defined values are conferred on N, M, and on the quantisation interval Q.

公开(公告)号：EP3079364A1

公开(公告)日：2016-10-12

申请号：EP15305520.7

申请日：2015-04-09

申请人： Thomson Licensing

发明人： Guillotel, Philippe ,  Alain, Martin ,  Thoreau, Dominique ,  Turkan, Mehmet

IPC分类号： H04N19/30

CPC分类号： H04N19/46 ,  G06T2207/20208 ,  H04N19/30

摘要： The disclosure relates to a method for generating at least one image with a first dynamic range, from an image with a second dynamic range, which is lower than said first dynamic range, comprising:
- obtaining (11) an epitome of said image with a first dynamic range, called a first epitome,
- generating (12) said image with a first dynamic range, from the image with a second dynamic range and the first epitome.

摘要翻译： 本公开涉及一种用于与第一动态范围的第二动态范围，产生至少一个图像，从图像中，所有这一切都大于所述第一动态范围低，它包括： - 获得（11）所述图像的与缩影 第一动态范围，称为第一缩影， - 生成（12），所述图像具有第一动态范围，从与第二动态范围和第一缩影图像。

公开(公告)号：EP3046326A1

公开(公告)日：2016-07-20

申请号：EP15305028.1

申请日：2015-01-15

申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

发明人： Turkan, Mehmet ,  Thoreau, Dominique ,  Guillotel, Philippe ,  Alain, Martin ,  Guillemot, Christine

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/593 ,  H04N19/154 ,  H04N19/192

CPC分类号： H04N19/105 ,  H04N19/154 ,  H04N19/176 ,  H04N19/192 ,  H04N19/593

摘要： A method of construction of an epitome of an image is disclosed. The method comprises at least one iteration of:
- determining (120) for each of at least two patches the number of blocks of said image reconstructed by an extended epitome formed by a current epitome and the patch, wherein a block is reconstructed by the extended epitome when a distance between the block and a weighted linear combination of patches of the extended epitome is below a threshold value;
- adding (122) to the current epitome the patch, among the at least two patches, that reconstructs the highest number of blocks.

摘要翻译： 构造的图像的缩影的方法是游离缺失盘。 该方法包括至少一次迭代： - 对于每个所述至少两个贴片通过在由电流缩影和贴片形成的延长缩影重建所述图像的块的数量的确定性开采（120），worin一个块由延伸重构 缩影当块和扩展缩影的补丁的加权线性组合之间的距离低于阈值; - 添加（122）到当前缩影贴片，所述至少两个贴片之间，并重新构建的块的最大数量。

公开(公告)号：EP2938074A1

公开(公告)日：2015-10-28

申请号：EP15163796.4

申请日：2015-04-16

申请人： Thomson Licensing

发明人： Thoreau, Dominique ,  Cherigui, Safa ,  Alain, Martin ,  Guillotel, Philippe ,  Guillemot, Christine

IPC分类号： H04N19/117 ,  H04N19/14 ,  H04N19/105 ,  H04N19/176 ,  H04N19/61 ,  H04N19/11 ,  H04N19/593

CPC分类号： H04N19/593 ,  H04N19/129 ,  H04N19/136 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61

摘要： A method for decoding a picture divided into blocks is disclosed. The method comprises at least one iteration of:
a) determining (S20) for at least two blocks adjacent to a reconstructed part of the picture a priority level responsive at least to directional gradients computed in a causal neighborhood of said block; and
b) decoding (S22) a part of the picture comprising the block whose priority level is the highest.

摘要翻译： 公开了一种分割成块的图像解码方法。 该方法包括以下步骤中的至少一个迭代：a）确定（S20）至少与图像的重建部分相邻的块，优先级至少响应于在所述块的因果邻域中计算的定向梯度; 以及b）解码（S22）包括优先级最高的块的图像的一部分。

公开(公告)号：EP2854120A1

公开(公告)日：2015-04-01

申请号：EP13306327.1

申请日：2013-09-26

申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

发明人： Danieau, Fabien ,  Fleureau, Julien ,  Guillotel, Philippe ,  Mollet, Nicolas ,  Lecuyer, Anatole ,  Christie, Marc

IPC分类号： G09B9/02 ,  G06F3/01 ,  G09B9/06 ,  G09B9/08 ,  G09B9/28 ,  G09B23/28

CPC分类号： A63G31/16 ,  G06F19/00 ,  G09B9/02 ,  G09B9/04 ,  G09B9/06 ,  G09B9/08 ,  G09B9/28 ,  G09B23/28

摘要： The invention relates to a method for controlling at least one force-feedback device (101, 102, 103) associated with at least a part of the body of a user (11). As to control the user's experience of motion and movements induced by the displacement(s) of the force feedback device(s) (101, 102, 103), the method comprises the steps of:
- determining a speed value of a movement of the at least a part of the body according to at least a parameter representative of the displacement of the at least one force-feedback device (101, 102, 103), the movement of the at least a part of the body being induced by the displacement of the at least one force-feedback device (101, 102, 103);
- comparing the determined speed value with a threshold speed value as to determine whether the displacement of the at least one force-feedback device (101, 102, 103) is perceived by the user (11);
- controlling the at least one parameter according to the comparison result.
The invention is also related to a device and computer program product implementing the method.

摘要翻译： 本发明涉及一种用于控制与用户（11）的身体的至少一部分相关联的至少一个力反馈装置（101,102,103）的方法。 为了控制用户对力反馈装置（101,102,103）的位移引起的运动和运动的体验，该方法包括以下步骤： - 确定运动的速度值 根据至少一个代表至少一个力 - 反馈装置（101,102,103）的位移的参数，所述身体的至少一部分，所述身体的至少一部分的运动被位移引起 的所述至少一个力反馈装置（101,102,103）; - 将所确定的速度值与阈值速度值进行比较，以确定所述至少一个力 - 反馈装置（101,102,103）的位移是否被使用者（11）感知到; - 根据比较结果控制至少一个参数。 本发明还涉及实现该方法的设备和计算机程序产品。