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21. 发明授权

US10567761B2 Method and device for encoding at least one image unit, and method and device for decoding a stream representative of at least one image unit 有权
公开(公告)号：US10567761B2
公开(公告)日：2020-02-18
申请号：US15457989
申请日：2017-03-13
申请人： THOMSON LICENSING
发明人： Philippe Bordes , Fabien Racape , Tangi Poirier
IPC分类号： H04N19/117 , H04N19/157 , H04N19/82 , H04N19/70 , H04N19/176 , H04N19/17 , H04N19/182
摘要： A method for encoding at least one image unit is disclosed. The method includes encoding at least one image unit, reconstructing the at least one image unit into a reconstructed image unit and applying an offset filter to the at least one reconstructed image unit. Applying the offset filter to the at least one reconstructed image unit includes determining at least one current category in a set of categories for at least one pixel of the reconstructed image unit, encoding an offset value for at least one category of the set of categories, applying a pre-filter to the at least one pixel of the reconstructed image unit assigned to the category only in the case where the current category is equal to the category having an encoded offset value and adding the encoded offset value to the at least one pixel of the reconstructed image unit.

22. 发明授权

US10356444B2 Method and apparatus for encoding and decoding high dynamic range (HDR) videos 有权
公开(公告)号：US10356444B2
公开(公告)日：2019-07-16
申请号：US15544753
申请日：2016-01-29
申请人： THOMSON LICENSING
发明人： Fabrice Leleannec , Sebastien Lasserre , Pierre Andrivon , Philippe Bordes , Edouard Francois
IPC分类号： H04N19/70 , H04N19/98 , H04N19/463 , H04N19/467 , H04N19/122 , H04N19/139 , H04N19/147 , H04N19/186 , H04N19/44 , 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.

23. 发明申请

US20160366423A1 METHOD AND DEVICE FOR ENCODING BOTH A HIGH-DYNAMIC RANGE FRAME AND AN IMPOSED LOW-DYNAMIC RANGE FRAME 审中-公开
标题翻译：用于编码高动态范围框架和实现的低动态范围框架的方法和装置
公开(公告)号：US20160366423A1
公开(公告)日：2016-12-15
申请号：US15180214
申请日：2016-06-13
申请人： THOMSON LICENSING
发明人： Sebastien LASERRE , Pierre Andrivon , Philippe Bordes
IPC分类号： H04N19/186 , H04N19/503 , H04N19/172
CPC分类号： H04N19/186 , G09G3/3406 , G09G3/3426 , G09G2320/0646 , G09G2340/02 , G09G2350/00 , H04N19/172 , H04N19/50 , H04N19/503 , H04N19/98
摘要： The present disclosure generally relates to a method and device for encoding a frame. The method includes the steps of determining a backlight frame from the frame, calculating a residual frame responsive to the frame and the backlight frame, and predictive-encoding of the residual frame using a predictor of the residual frame calculated from an imposed frame (IMF), where the imposed frame is a low-dynamic version of the frame to be encoded. The disclosure relates also a method and device for decoding at least one bitstream representing a frame.
摘要翻译：本公开一般涉及用于对帧进行编码的方法和装置。该方法包括以下步骤：从帧中确定背光帧，响应于帧和背光帧计算残余帧，以及使用从施加的帧（IMF）计算的残差帧的预测器对剩余帧进行预测编码，其中所施加的帧是要被编码的帧的低动态版本。本公开还涉及用于对表示帧的至少一个比特流进行解码的方法和装置。

24. 发明申请

US20140354632A1 METHOD FOR MULTI-VIEW MESH TEXTURING AND CORRESPONDING DEVICE 审中-公开
标题翻译：多视图网格纹理和相关设备的方法
公开(公告)号：US20140354632A1
公开(公告)日：2014-12-04
申请号：US14372018
申请日：2012-10-08
申请人： THOMSON LICENSING
发明人： Youssef Alj , Guillaum Boisson , Philippe Bordes , Luce Morin , Muriel Pressigout
IPC分类号： G06T15/04 , H04N13/02
CPC分类号： G06T15/04 , G06T7/55 , H04N13/275 , H04N13/282
摘要： A method for texturing a mesh associated with a surface representative of a scene captured in a plurality of images, wherein at least a mesh element of the mesh is at least partially visible from at least two first images of the plurality of images. As to reduce the amount of texture information associated with multi-views data representative of the scene, the method comprises for each first image (110 to 140), association of a first texture information with the mesh element, projection of the first texture information in the at least two first images, for each first texture information, estimation of an error information according to a comparison result between the projected first texture information and the texture information of said at least two first images, and selection of one of the at least two first texture information according to the error information.
摘要翻译：一种用于纹理化与表示在多个图像中捕获的场景的表面相关联的网格的方法，其中所述网格的至少一个网格元素至少部分地可见于所述多个图像中的至少两个第一图像。为了减少与代表场景的多视图数据相关联的纹理信息量，该方法包括对于每个第一图像（110至140），第一纹理信息与网格元素的关联，第一纹理信息的投影所述至少两个第一图像，对于每个第一纹理信息，根据所述投影的第一纹理信息和所述至少两个第一图像的纹理信息之间的比较结果来估计误差信息，以及选择所述至少两个第一个纹理信息根据错误信息。

25. 发明申请

US20130187918A1 METHOD FOR MODELLING A 3D SCENE AND CORRESPONDING DEVICE 有权
标题翻译：用于建模3D场景和对应设备的方法
公开(公告)号：US20130187918A1
公开(公告)日：2013-07-25
申请号：US13716062
申请日：2012-12-14
申请人： Thomson Licensing
发明人： Youssef ALJ , Guillaume Boisson , Philippe Bordes , Luce Morin , Muriel Pressigout
IPC分类号： G06T15/08
CPC分类号： G06T15/08 , G06T17/10
摘要： The invention relates to a method for modelling a scene from a plurality of maps representative of depth, each map representative of depth being associated with a view of the said scene according to a particular viewpoint. To optimize the fidelity and precision of the scene modelling, the method comprises the following steps: generating, for each map representative of depth, a surface representative of the said depth map in world space; estimating a volume bounding all surfaces generated, the said bounding volume being discretised into a plurality of voxels; associating attributes representative of transparency with the said voxels of the bounding volume; and generating a resulting surface according to the attributes representative of transparency associated with the said voxels. The invention also relates to a device for processing the data representative of the corresponding depth.
摘要翻译：本发明涉及一种用于从代表深度的多个地图建模场景的方法，根据特定视点，表示深度的每个地图与所述场景的视图相关联。为了优化场景建模的保真度和精度，该方法包括以下步骤：为代表深度的每个地图生成代表世界空间中的所述深度图的表面; 估计限制生成的所有表面的体积，所述包围体积被离散化成多个体素; 将表示透明度的属性与边界体积的所述体素相关联; 以及根据表示与所述体素相关联的透明度的属性生成所得到的表面。本发明还涉及用于处理表示相应深度的数据的装置。

26. 发明授权

US10110921B2 Method of and device for encoding an HDR video together with an LDR video, method of and device for reconstructing one of an HDR video and an LDR video coded together and PF storage medium 有权
公开(公告)号：US10110921B2
公开(公告)日：2018-10-23
申请号：US14370773
申请日：2012-12-18
申请人： THOMSON LICENSING
发明人： Yannick Olivier , David Touze , Philippe Bordes , Franck Hiron
IPC分类号： H04N19/36 , H04N19/597 , H04N19/30 , H04N19/61 , H04N19/59 , H04N19/50
摘要： The inventors realized that representing HDR content using LDR content and HDR residual is not unproblematic. The invention therefore proposes representing HDR content using LDR content, LDR residual and global illumination data, instead. That is, it is proposed a method of encoding an HDR video of high dynamic range together with an LDR video, the LDR video providing a lower dynamic range depiction of the HDR video content, the method comprising using processing means for encoding one video of the LDR video and a further LDR video extracted from the HDR video independent from the other video of the LDR video and the HDR video and predictive encoding the other video using the one video as reference, and lossless encoding global illumination data further extracted from the HDR video. This has the advantage that prediction is more stable and globally optimal predictors are more easily found.

27. 发明授权

US09654793B2 Video encoding/decoding methods, corresponding computer programs and video encoding/decoding devices 有权
公开(公告)号：US09654793B2
公开(公告)日：2017-05-16
申请号：US14490999
申请日：2014-09-19
申请人： THOMSON LICENSING
发明人： Philippe Bordes , Pierre Andrivon , Philippe Salmon , Patrick Lopez , Franck Hiron
IPC分类号： H04N7/12 , H04N15/00 , H04N19/52 , H04N19/70 , H04N19/16
CPC分类号： H04N19/52 , H04N19/16 , H04N19/70
摘要： A method for encoding an interlaced video comprising a sequence of alternating TOP and BOT fields is disclosed. The method for encoding comprises: producing a sequence of frames, each frame being determined from at least two consecutive fields, each field forming a rectangular region of the frame, encoding each frame of the sequence to produce an encoded video of the sequence of frames.

28. 发明授权

US09235922B2 Method for modelling a 3D scene and corresponding device 有权
标题翻译： 3D场景和相应设备的建模方法
公开(公告)号：US09235922B2
公开(公告)日：2016-01-12
申请号：US13716062
申请日：2012-12-14
申请人： THOMSON LICENSING
发明人： Youssef Alj , Guillaume Boisson , Philippe Bordes , Luce Morin , Muriel Pressigout
IPC分类号： G06T15/08 , G06T17/10
CPC分类号： G06T15/08 , G06T17/10
摘要： The invention relates to a method for modeling a scene from a plurality of maps representative of depth, each map representative of depth being associated with a view of the said scene according to a particular viewpoint, To optimize the fidelity and precision of the scene modeling, the method comprises the following steps: generating, for each map representative of depth, a surface representative of the said depth map in world space; estimating a volume bounding all surfaces generated, the said bounding volume being discretised into a plurality of voxels; associating attributes representative of transparency with the said voxels of the bounding volume; and generating a resulting surface according to the attributes representative of transparency associated with the said voxels. The invention also relates to a device for processing the data representative of the corresponding depth.
摘要翻译：本发明涉及一种用于从代表深度的多个地图建立场景的方法，根据特定视点，代表深度的每个地图与所述场景的视图相关联。为了优化场景建模的保真度和精度，该方法包括以下步骤：为代表深度的每个地图生成代表世界空间中的所述深度图的表面; 估计限制生成的所有表面的体积，所述包围体积被离散化成多个体素; 将表示透明度的属性与边界体积的所述体素相关联; 以及根据表示与所述体素相关联的透明度的属性生成所得到的表面。本发明还涉及用于处理表示相应深度的数据的装置。

29. 发明申请

US20140369410A1 METHOD OF AND DEVICE FOR ENCODING AN HDR VIDEO TOGETHER WITH AN LDR VIDEO, METHOD OF AND DEVICE FOR RECONSTRUCTING ONE OF AN HDR VIDEO AND AN LDR VIDEO CODED TOGETHER AND PF STORAGE MEDIUM 审中-公开
标题翻译：用于用LDR视频编码HDR视频的方法和装置，用于重新编码HDR视频和LDR视频编码的一个和PF存储介质的方法和装置
公开(公告)号：US20140369410A1
公开(公告)日：2014-12-18
申请号：US14370773
申请日：2012-12-18
申请人： THOMSON LICENSING
发明人： Yannick Olivier , David Touze , Philippe Bordes , Franck Hiron
IPC分类号： H04N19/36 , H04N19/597 , H04N19/59
CPC分类号： H04N19/597 , H04N19/30 , H04N19/36 , H04N19/50 , H04N19/59 , H04N19/61
摘要： The inventors realized that representing HDR content using LDR content and HDR residual is not unproblematic. The invention therefore proposes representing HDR content using LDR content, LDR residual and global illumination data, instead. That is, it is proposed a method of encoding an HDR video of high dynamic range together with an LDR video, the LDR video providing a lower dynamic range depiction of the HDR video content, the method comprising using processing means for encoding one video of the LDR video and a further LDR video extracted from the HDR video independent from the other video of the LDR video and the HDR video and predictive encoding the other video using the one video as reference, and lossless encoding global illumination data further extracted from the HDR video. This has the advantage that prediction is more stable and globally optimal predictors are more easily found.
摘要翻译：发明人意识到，使用LDR内容和HDR残差代表HDR内容不是没有问题。因此，本发明提出了使用LDR内容，LDR残差和全局照明数据代表HDR内容。也就是说，提出了一种将高动态范围的HDR视频与LDR视频一起编码的方法，LDR视频提供HDR视频内容的较低的动态范围描绘，该方法包括使用处理装置对一个视频进行编码 LDR视频和从HDR视频中独立于LDR视频和HDR视频的另一视频提取的另一LDR视频，并且使用一个视频作为参考来对其他视频进行预测编码，以及从HDR视频进一步提取的无损编码全局照明数据。这具有预测更稳定并且更容易找到全局最优预测器的优点。

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