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1. 发明授权

US10375410B2 Method for color mapping a video signal based on color mapping data and method of encoding a video signal and color mapping data and corresponding devices 有权
公开(公告)号：US10375410B2
公开(公告)日：2019-08-06
申请号：US15518233
申请日：2015-10-01
申请人： THOMSON LICENSING
发明人： Pierre Andrivon , Sebastien Lasserre , Philippe Bordes
IPC分类号： G06K9/00 , H04N19/46 , G09G5/02 , H04N9/67 , H04N19/117 , H04N19/136 , H04N19/186 , H04N19/85 , H04N1/60 , H04N19/44
摘要： A method of color mapping a video signal represented in a first color volume from color mapping data to be applied on a video signal represented in a second color volume is disclosed. The method comprises: color mapping (14) said video signal represented in a first color volume from said first color volume into said second color volume in the case where said first and second color volumes are different; and color mapping (16) said color mapped video signal based on said color mapping data.

2. 发明授权

US09788001B2 Method of coding a first and a second version of an image into a base layer and an enhancement layer based on a color gamut mapping model 有权
公开(公告)号：US09788001B2
公开(公告)日：2017-10-10
申请号：US14655240
申请日：2013-12-23
申请人： THOMSON LICENSING
发明人： Jurgen Stauder , Philippe Bordes , Corinne Poree
IPC分类号： H04N19/30 , H04N19/60 , H04N19/136
CPC分类号： H04N19/30 , H04N19/136 , H04N19/60
摘要： The method comprises the steps of: —determining, for each color of the second version, corresponding scalar value(s) of one or two variable(s) such that, if said scalar value(s) is applied to the color gamut mapping model, a mapped color is obtained having a minimal distance to the corresponding color of the first version (i.e. enhanced) to the color of second version, —encoding the determined scalar value(s) into an enhancement layer.

3. 发明授权

US09699426B2 Method and device for estimating a color mapping between two different color-graded versions of a picture 有权
公开(公告)号：US09699426B2
公开(公告)日：2017-07-04
申请号：US14956311
申请日：2015-12-01
申请人： THOMSON LICENSING
发明人： Philippe Bordes , Sebastien Lasserre , Pierre Andrivon
IPC分类号： G06K9/00 , H04N9/64 , H04N1/60
CPC分类号： H04N9/64 , G06T2207/10024 , H04N1/6058
摘要： A method and device for processing a picture comprises estimating a color mapping between a first and a second color-graded version of the picture by estimating a color mapping function that maps the color values of the first color-graded version of the picture onto the color values of the second color-graded version of the picture.

4. 发明申请

US20150172653A1 VIDEO CODING AND DECODING METHOD WITH ADAPTATION OF CODING MODES AND CORRESPONDING ENCODER AND DECODER 审中-公开
标题翻译：视频编码和解码方法适应编码模式和对应编码器和解码器
公开(公告)号：US20150172653A1
公开(公告)日：2015-06-18
申请号：US14412998
申请日：2013-06-27
申请人： THOMSON LICENSING
发明人： Edouard Francois , Dominique Thoreau , Jerome Vieron , Philippe Bordes
IPC分类号： H04N19/103 , H04N19/50 , H04N19/176
CPC分类号： H04N19/103 , H04N19/107 , H04N19/109 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/50 , H04N19/61
摘要： A method for coding or decoding pixel blocks is disclosed. 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：公开了一种编码或解码像素块的方法。在编码器和解码器处的可用模式的数量被限制为可能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

5. 发明申请

US20150049802A1 METHOD AND DEVICE FOR CODING AN IMAGE BLOCK, CORRESPONDING DECODING METHOD AND DECODING DEVICE 审中-公开
标题翻译：用于编码图像块的方法和装置，相应的解码方法和解码装置
公开(公告)号：US20150049802A1
公开(公告)日：2015-02-19
申请号：US14372021
申请日：2013-01-10
申请人： THOMSON LICENSING
发明人： Philippe Bordes , Pierre Andrivon , Philippe Salmon
IPC分类号： H04N19/117 , H04N19/80 , H04N19/146 , H04N19/105 , H04N19/176
CPC分类号： H04N19/117 , H04N19/105 , H04N19/146 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/33 , H04N19/423 , H04N19/439 , H04N19/44 , H04N19/523 , H04N19/59 , H04N19/80 , H04N19/82
摘要： A method is described for reconstructing a current block of a current image from at least one block of a reconstructed reference image at a different size from the size of the current image. The method comprises the steps: motion compensate the reference block with at least one interpolation filter that depends on the size of said reference image and on the size of said current image, decode, for the current block, a residue block, and reconstruct the current block from the residue block and from the motion compensated reference block.
摘要翻译：描述了一种用于从与当前图像的大小不同的尺寸的重构参考图像的至少一个块重建当前图像的当前块的方法。该方法包括以下步骤：使用至少一个取决于所述参考图像的大小和所述当前图像的大小的内插滤波器对参考块进行运动补偿，对于当前块，对残差块进行解码，并且重构当前的来自残差块和运动补偿参考块。

6. 发明申请

US20140010306A1 METHOD FOR CODING AND DECODING A BLOCK OF PIXELS FROM A MOTION MODEL 有权
标题翻译：从运动模型中对像素块进行编码和解码的方法
公开(公告)号：US20140010306A1
公开(公告)日：2014-01-09
申请号：US13934393
申请日：2013-07-03
申请人： Thomson Licensing
发明人： Edouard FRANCOIS , Dominique Thoreau , Jerome Vieron , Philippe Bordes
IPC分类号： H04N7/36
CPC分类号： H04N19/513 , H04N19/105 , H04N19/11 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/51
摘要： A method for coding a current block using a parametric motion model whose parameters are defined from the motion data of the causal neighbourhood is disclosed. Specifically, the method for coding the current block comprises the following steps: determine a prediction block of the current block from a motion model defined by a set of parameters, the model associating a motion vector pointing at a pixel of a prediction block with each pixel of the current block. calculate a residual block between the current block and the prediction block, and code the residual block. According to the invention, the parameters of the motion model are determined from the motion data associated with the causal neighbourhood blocks of the current block. Therefore, they can be deducted from parts of images already coded and do not need to be incorporated in the image data stream.
摘要翻译：公开了一种使用参数运动模型对当前块进行编码的方法，该参数运动模型的参数根据因果关联的运动数据定义。具体地说，编码当前块的方法包括以下步骤：从由一组参数定义的运动模型确定当前块的预测块，该模型将指向预测块的像素的运动矢量与每个像素相关联的当前块。计算当前块与预测块之间的残差块，并对剩余块进行编码。根据本发明，根据与当前块的因果邻域块相关联的运动数据确定运动模型的参数。因此，它们可以从已经编码的图像的部分中扣除，并且不需要并入图像数据流中。

7. 发明申请

US20130287101A1 METHOD AND DEVICE FOR ENCODING A VIDEO FRAME, METHOD AND DEVICE FOR DECODING A VIDEO FRAME AND STORAGE MEDIUM 有权
标题翻译：用于编码视频帧的方法和设备，用于解码视频帧和存储介质的方法和设备
公开(公告)号：US20130287101A1
公开(公告)日：2013-10-31
申请号：US13656154
申请日：2012-10-19
申请人： Thomson Licensing
发明人： Philippe Bordes , Pierre Andrivon , Philippe Salmon
IPC分类号： H04N7/32
CPC分类号： H04N19/597 , H04N19/82 , H04N19/86
摘要： A method and a device are described for modifying a video frame for encoding or decoding wherein values of pixels of the video frame are represented an increased bit depth.The described method comprises using processing means for executing the step of offsetting the pixel values of increased bit depth with offsets, the offsets depending on a spatial neighbourhood of the pixel to-be-offset.Such local adaptive offsetting of pixel values de-emphasizes high frequencies in the transform domain artificially emphasized by the bit depth increase.
摘要翻译：描述了用于修改用于编码或解码的视频帧的方法和装置，其中视频帧的像素值被表示为增加的比特深度。所描述的方法包括使用处理装置，用于执行以偏移量偏移增加的位深度的像素值的步骤，该偏移取决于要偏移的像素的空间邻域。像素值的这种局部自适应偏移使得由位深度增加而人为强调的变换域中的高频失真。

8. 发明授权

US10805506B2 Method and apparatus for encoding color mapping information and processing pictures based on color mapping information 有权
公开(公告)号：US10805506B2
公开(公告)日：2020-10-13
申请号：US15549187
申请日：2016-02-19
申请人： THOMSON LICENSING
发明人： Yannick Olivier , Sébastien Lasserre , Pierre Andrivon , Philippe Bordes
IPC分类号： H04N1/60 , H04N19/46
摘要： Color mapping information can be used to transform one color to another color. The present embodiments provide a solution for representing the color mapping information using a successive application of multiple color mapping functions. Parameters for the multiple color mapping functions can be encoded into a bitstream. In one embodiment, color mapping functions are consecutively applied on their own domains of definition only. In another embodiment, the first color mapping (CRI1) is applied on its domain of definition only, but the second color mapping is applied only on samples that have been previously color mapped by CRI1 and which are also inside the domain of definition of the second color mapping function. At the decode side, the multiple color mapping functions can be reconstructed and successively applied to a decoded picture to generate another picture.

9. 发明申请

US20190200044A1 METHOD AND APPARATUS FOR VIDEO CODING WITH ADAPTIVE CLIPPING 审中-公开
公开(公告)号：US20190200044A1
公开(公告)日：2019-06-27
申请号：US16301191
申请日：2017-04-26
申请人： THOMSON LICENSING
发明人： Franck GALPIN , Fabien Racape , Philippe Bordes
IPC分类号： H04N19/86 , H04N19/463 , H04N19/176 , H04N19/117
摘要： Clipping may be applied during various operations at an encoder or decoder. The lower and upper bounds for clipping can be differentially encoded with respect to predictors. Fixed predictors can be used, for example, 0 and 2bitdepth for the lower and upper bounds, respectively. Adaptive predictors can also be used. Adaptive predictors can be derived from clipping bounds in previously encoded or decoded pictures, or explicitly signaled in a bitstream. Whether to encode the clipping bounds can be determined based on the number of pixels that have values close to the clipping bounds. Additionally, taking advantage of the clipping operation, the prediction residuals can be smoothed, while the distortion for the block may not necessarily increase.

10. 发明授权

US09961353B2 Method and device for decoding a scalable stream representative of an image sequence and corresponding coding method and device 有权
公开(公告)号：US09961353B2
公开(公告)日：2018-05-01
申请号：US14905960
申请日：2014-07-10
申请人： THOMSON LICENSING
发明人： Philippe Bordes , Patrick Lopez , Mehmet Turkan
IPC分类号： G06K9/36 , H04N19/34 , H04N19/50 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/96 , H04N19/33 , H04N19/36 , H04N19/44
CPC分类号： H04N19/34 , H04N19/159 , H04N19/176 , H04N19/33 , H04N19/36 , H04N19/44 , H04N19/46 , H04N19/50 , H04N19/96
摘要： Different implementations are described, in particular, implementations for coding and decoding a scalable stream comprising a base layer and at least one enhancement layer. For example, one method provides for decoding a first part of the enhancement layer relating to a group of blocks into decoded enhancement data which comprise at least one item of information for identifying at least one region of the reconstructed at least one image and obtaining residues for at least one block of the group of blocks from a second part of the enhancement layer.

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