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81. 发明申请

WO2016184762A1 METHOD AND DEVICE FOR PROCESSING COLOR IMAGE DATA REPRESENTING COLORS OF A COLOR GAMUT. 审中-公开
标题翻译：用于处理彩色图像数据的方法和装置表示彩色游戏的颜色。
公开(公告)号：WO2016184762A1
公开(公告)日：2016-11-24
申请号：PCT/EP2016/060613
申请日：2016-05-12
申请人： THOMSON LICENSING
发明人： FRANCOIS, Edouard , LOPEZ, Patrick , LASSERRE, Sebastien
IPC分类号： H04N1/60
CPC分类号： H04N1/6061 , H04N1/6008 , H04N1/6066 , H04N19/186
摘要： The present disclosure generally relates a method and device for processing color image data. The method comprises a color gamut mapping in the course of which a color image data (CID), represented by a first 2D point (A) belonging to a representation of the original color gamut in a chromaticity diagram, is mapped to a mapped color image data (MCID) of a target color gamut (TCG), the mapped color image data of the target color gamut (TCG) being represented by a second 2D point (B) belonging to a representation of the target color gamut (TCG) in the chromaticity diagram, wherein the color gamut mapping comprises: - obtaining (100) a representation of a preserved color gamut (PCG) in the chromaticity diagram by applying an homothety either to the original color gamut or to the target color gamut; - checking (110) if said first 2D point is located outside the representation of the preserved color gamut (PCG); and - when said first 2D point is located outside the representation of the preserved color gamut (PCG), moving (300) said first 2D point so that it belongs to the representation of the target color gamut (TCG), the second 2D point being then equal to the moved first 2D point. The disclosure relates also to a method and device for encoding/decoding color image data.
摘要翻译：本公开通常涉及用于处理彩色图像数据的方法和装置。该方法包括色域映射，其中由色度图中属于原始色域的表示的第一2D点（A）表示的彩色图像数据（CID）被映射到映射的彩色图像目标色域（TCG）的数据（MCID），目标色域（TCG）的映射彩色图像数据由属于目标色域（TCG）中的目标色域（TCG）的表示的第二2D点（B）表示色度图，其中色域映射包括： - 通过对原始色域或目标色域应用同质，获得（100）色度图中的保留色域（PCG）的表示; - 如果所述第一2D点位于所述保留色域（PCG）的表示之外，则检查（110）; 以及 - 当所述第一2D点位于所述保留色域（PCG）的表示之外时，移动（300）所述第一2D点使其属于所述目标色域（TCG）的表示，所述第二2D点为然后等于移动的第一个2D点。本公开还涉及用于对彩色图像数据进行编码/解码的方法和装置。

82. 发明申请

WO2015193117A1 METHOD AND DEVICE FOR DECODING A HDR PICTURE FROM A BITSTREAM REPRESENTING A LDR PICTURE AND AN ILLUMINATION PICTURE 审中-公开
标题翻译：用于从表示LDR图像和照明图像的BITSTREAM中解码HDR图像的方法和装置
公开(公告)号：WO2015193117A1
公开(公告)日：2015-12-23
申请号：PCT/EP2015/062477
申请日：2015-06-04
申请人： THOMSON LICENSING
发明人： ANDRIVON, Pierre , LASSERRE, Sebastien , FRANCOIS, Edouard
IPC分类号： G06T5/00 , H04N19/44 , H04N19/98 , H04N19/127 , H04N19/186
CPC分类号： H04N19/127 , H04N19/186 , H04N19/44 , H04N19/98
摘要： The present disclosure generally relates to a method and device for decoding an HDR picture from a bitstream representing a LDR picture and an illumination picture. The method comprising: - obtaining a decoded version of the HDR picture by multiplying the sample values of a decoded version of the LDR picture by the sample values of the decoded version of the illumination picture; and - obtaining a color value expressed in an output color space for each sample value of the decoded version of the HDR picture, the method is characterized in that it further comprises: - obtaining a color value expressed in the output color space for each sample value of a decoded version of the LDR picture just before multiplying said color values by the sample values of the decoded version of the illumination picture.
摘要翻译：本公开一般涉及用于从表示LDR图像和照明图像的比特流中解码HDR图像的方法和装置。该方法包括：通过将LDR图像的解码版本的采样值乘以照明图像的解码版本的采样值，获得HDR图像的解码版本; 以及 - 获得针对HDR图像的解码版本的每个样本值在输出颜色空间中表示的颜色值，其特征在于，还包括： - 获得在每个样本值的输出颜色空间中表示的颜色值在将所述颜色值乘以照明图像的解码版本的采样值之前的LDR图像的解码版本。

83. 发明申请

WO2014005930A1 SPATIAL PREDICTION WITH INCREASED NUMBER OF POSSIBLE CODING MODES 审中-公开
标题翻译：空间预测增加了可能的编码模式
公开(公告)号：WO2014005930A1
公开(公告)日：2014-01-09
申请号：PCT/EP2013/063546
申请日：2013-06-27
申请人： THOMSON LICENSING
发明人： FRANCOIS, Edouard , THOREAU, Dominique , VIERON, Jérôme , RACAPE, Fabien
IPC分类号： H04N7/26
CPC分类号： H04N19/593 , H04N19/105 , H04N19/11 , H04N19/14 , H04N19/176 , H04N19/192 , H04N19/463
摘要： The invention relates to a spatial prediction method of a block of pixels of an image, called current block, using a plurality of spatial prediction modes based on neighbouring pixels of the current block, comprising a step for determining (E3) a prediction block of the current block according to each one of said spatial prediction modes and a step for selecting (E4) one of said prediction blocks according to a predetermined criterion. According to the invention, before carrying out the preceding steps, it is detected (E1), among said spatial prediction modes, whether some of them are redundant. If such redundant modes are detected, one of them is replaced (E2) by an additional mode, distinct from the other spatial prediction modes
摘要翻译：本发明涉及使用基于当前块的相邻像素的多个空间预测模式的被称为当前块的图像像素块的空间预测方法，包括以下步骤：（E3）确定（E3）预测块的预测块根据所述空间预测模式中的每一个的当前块和根据预定标准选择（E4）所述预测块之一的步骤。根据本发明，在执行上述步骤之前，在所述空间预测模式中，检测（E1）是否是多余的。如果检测到这样的冗余模式，则通过与其他空间预测模式不同的附加模式来替换其中的一个

84. 发明申请

WO2014005924A1 VIDEO CODING AND DECODING METHOD WITH ADAPTATION OF CODING MODES 审中-公开
标题翻译：视频编码和解码方法适应编码模式
公开(公告)号：WO2014005924A1
公开(公告)日：2014-01-09
申请号：PCT/EP2013/063527
申请日：2013-06-27
申请人： THOMSON LICENSING
发明人： FRANCOIS, Edouard , THOREAU, Dominique , VIERON, Jérôme , BORDES, Philippe
IPC分类号： H04N7/26
CPC分类号： H04N19/103 , H04N19/107 , H04N19/109 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/50 , H04N19/61
摘要： This invention relates to a method for coding or decoding pixel blocks. According to the invention, the number of usable modes at the coder and at the decoder is limited to a subset of the set of possible coding modes and the content of this subset is regularly adapted to the content of the images of the sequence. Thus, the coder or decoder always only has a reduced number q
摘要翻译：本发明涉及一种编码或解码像素块的方法。根据本发明，编码器和解码器处的可用模式的数量被限制为可能的编码模式集合的子集，并且该子集的内容规则地适应于序列的图像的内容。因此，编码器或解码器总是仅具有可用的编码模式的减少数量q

85. 发明申请

WO2017009182A1 A METHOD AND DEVICE FOR TONE-MAPPING A PICTURE BY USING A PARAMETRIC TONE-ADJUSTMENT FUNCTION 审中-公开
标题翻译：通过使用参数调整函数对图像进行色调的方法和装置
公开(公告)号：WO2017009182A1
公开(公告)日：2017-01-19
申请号：PCT/EP2016/066167
申请日：2016-07-07
申请人： THOMSON LICENSING
发明人： LELEANNEC, Fabrice , LASSERRE, Sebastien , POIRIER, Tangi , FRANCOIS, Edouard
IPC分类号： G06T5/00 , H04N1/407
CPC分类号： H04N1/4072 , G06T5/009 , G06T5/40
摘要： The present principles relates to a method and device for tone-mapping an input picture by using a parametric tone-adjustment function. The method is characterized in that the method comprises determining at least one parameter of said tone-adjustment function modulated by a brightness level of the input picture.
摘要翻译：本发明涉及一种通过使用参数色调调整功能对输入图像进行色调映射的方法和装置。该方法的特征在于，该方法包括确定由输入图像的亮度级调制的所述色调调整功能的至少一个参数。

86. 发明申请

WO2016120420A1 METHOD AND APPARATUS FOR ENCODING AND DECODING HIGH DYNAMIC RANGE (HDR) VIDEOS 审中-公开
标题翻译：编码和解码高动态范围（HDR）视频的方法和装置
公开(公告)号：WO2016120420A1
公开(公告)日：2016-08-04
申请号：PCT/EP2016/051868
申请日：2016-01-29
申请人： THOMSON LICENSING
发明人： LELEANNEC, Fabrice , LASSERRE, Sébastien , ANDRIVON, Pierre , BORDES, Philippe , FRANCOIS, Edouard
IPC分类号： H04N19/463 , H04N19/467
CPC分类号： H04N19/98 , H04N19/122 , H04N19/139 , H04N19/147 , H04N19/186 , H04N19/44 , H04N19/463 , H04N19/467 , H04N19/70 , H04N19/96
摘要： To preserve backward compatibility with a non-HDR device or service, an HDR picture may be represented using a modulation value and an SDR picture representative of the HDR picture. The modulation value and the SDR picture can then be encoded into the bitstream. At the receiving side, the modulation value and the SDR picture can be decoded. Based on the modulation value, the SDR picture can be mapped to a decoded HDR picture. For a non-HDR device or service, the modulation value information may be discarded and only the SDR picture is decoded. In particular, the modulation value may be implicitly signaled, using quad-tree representation information, intra coding information, inter partition mode information or motion vector residual information.
摘要翻译：为了保持与非HDR设备或服务的向后兼容性，可以使用代表HDR图像的调制值和SDR图像来表示HDR图像。然后可以将调制值和SDR图像编码到比特流中。在接收侧，可以对调制值和SDR图像进行解码。基于调制值，SDR图像可以映射到解码的HDR图像。对于非HDR设备或服务，可以丢弃调制值信息，并且仅对SDR图像进行解码。具体地，可以使用四叉树表示信息，帧内编码信息，分区间模式信息或运动矢量残差信息来隐式地发送调制值。

87. 发明申请

WO2015193113A1 METHOD AND DEVICE FOR SIGNALING IN A BITSTREAM A PICTURE/VIDEO FORMAT OF AN LDR PICTURE AND A PICTURE/VIDEO FORMAT OF A DECODED HDR PICTURE OBTAINED FROM SAID LDR PICTURE AND AN ILLUMINATION PICTURE. 审中-公开
标题翻译：用于信号处理的方法和装置图像/视频格式的LDR图像和图像/视频格式的图像从图像和照明图像获得的解码的HDR图像。
公开(公告)号：WO2015193113A1
公开(公告)日：2015-12-23
申请号：PCT/EP2015/062472
申请日：2015-06-04
申请人： THOMSON LICENSING
发明人： FRANCOIS, Edouard , LASSERRE, Sebastien , LELEANNEC, Fabrice , ANDRIVON, Pierre , OLIVIER, Yannick , TOUZE, David
IPC分类号： H04N19/30 , H04N19/70
CPC分类号： H04N19/70 , H04N19/30
摘要： The present disclosure generally relates to a method for signaling, in a bitstream representing a LDR picture and an illumination picture both obtained from an HDR picture, both a picture/video format of a decoded version of said LDR picture, called an output LDR format, and a picture/video format of a decoded version of said HDR picture, called an output HDR format, the method comprising encoding in the bitstream a first syntax element defining the output LDR format. The method is characterized in that it further comprises encoding in the bitstream a second syntax element which is distinct from the first syntax element and which defines the output HDR format. The disclosure further relates to an encoding/decoding method/device, a computer program product, a processor readable medium, a non-transitory storage medium and a signal.
摘要翻译：本公开一般涉及一种用于在表示从HDR图像获得的LDR图像和照明图像的比特流中发送所述LDR图像的解码版本的图像/视频格式，称为输出LDR格式的信号的方法，以及称为输出HDR格式的所述HDR图像的解码版本的图像/视频格式，所述方法包括在比特流中对定义输出LDR格式的第一语法元素进行编码。该方法的特征在于，其还包括在比特流中编码与第一语法元素不同并且定义输出HDR格式的第二语法元素。本公开还涉及编码/解码方法/设备，计算机程序产品，处理器可读介质，非暂时性存储介质和信号。

88. 发明申请

WO2015128268A1 METHOD FOR GENERATING A BITSTREAM RELATIVE TO IMAGE/VIDEO SIGNAL, BITSTREAM CARRYING SPECIFIC INFORMATION DATA AND METHOD FOR OBTAINING SUCH SPECIFIC INFORMATION 审中-公开
标题翻译：用于生成与图像/视频信号相关的BITSTREAM的方法，携带特定信息数据的BITSTREAM和用于获得这种特定信息的方法
公开(公告)号：WO2015128268A1
公开(公告)日：2015-09-03
申请号：PCT/EP2015/053670
申请日：2015-02-23
申请人： THOMSON LICENSING
发明人： ANDRIVON, Pierre , BORDES, Philippe , FRANCOIS, Edouard
IPC分类号： H04N1/32
CPC分类号： H04N5/202 , H04N7/035 , H04N9/68 , H04N9/69 , H04N21/83
摘要： The present disclosure generally relates to a bitstream relative to a video signal characterized in that it carries an information data which identifies an electro-optical-transfer-function intended to be applied on the video signal before rendering the video signal on a video display. The disclosure further relates to a method for generating such a bitstream and a method for obtaining an electro-optical-transfer-function intended to be applied on a video signal before rendering the video signal on a video display.
摘要翻译：本公开通常涉及相对于视频信号的比特流，其特征在于，其携带在将视频信号呈现在视频显示器之前识别要应用于视频信号的电光传输函数的信息数据。本公开还涉及一种用于生成这样的比特流的方法和用于在将视频信号呈现在视频显示器之前获得旨在应用于视频信号的电光传输函数的方法。

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