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    METHOD AND APPARATUS FOR ENCODING COLOR MAPPING INFORMATION AND PROCESSING PICTURES BASED ON COLOR MAPPING INFORMATION
    2.
    发明申请
    METHOD AND APPARATUS FOR ENCODING COLOR MAPPING INFORMATION AND PROCESSING PICTURES BASED ON COLOR MAPPING INFORMATION 审中-公开

    公开(公告)号：US20180035015A1

    公开(公告)日：2018-02-01

    申请号：US15549187

    申请日：2016-02-19

    Applicant: THOMSON LICENSING

    Inventor： Yannick OLIVIER ,  Sébastien LASSERRE ,  Pierre ANDRIVON ,  Philippe BORDES

    IPC: H04N1/60 ,  H04N19/46

    Abstract: 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.

    METHOD AND APPARATUS FOR GENERATING COLOR MAPPING PARAMETERS FOR VIDEO ENCODING
    4.
    发明申请
    METHOD AND APPARATUS FOR GENERATING COLOR MAPPING PARAMETERS FOR VIDEO ENCODING 审中-公开
    用于生成视频编码的颜色映射参数的方法和装置

    公开(公告)号：US20160286224A1

    公开(公告)日：2016-09-29

    申请号：US14699736

    申请日：2015-04-29

    Applicant: THOMSON LICENSING

    Inventor： Philippe BORDES ,  Franck HIRON ,  Kangying CAI

    IPC: H04N19/186 ,  H04N19/196 ,  H04N19/50 ,  H04N19/176 ,  H04N19/29

    CPC classification number: H04N19/186 ,  H04N19/196 ,  H04N19/30 ,  H04N19/50 ,  H04N19/60

    Abstract: In scalable video coding, Enhancement Layer (EL) pictures are usually predicted from decoded Base Layer (BL) pictures. When the EL pictures and the BL pictures are represented with different color spaces, transforming the decoded BL pictures, for example, to the color space of the EL may improve the prediction. To accurately predict from the BL, the color space of the BL pictures can be partitioned into multiple octants, wherein each octant is associated with a respective set of color mapping function (CMF) parameters. In one embodiment, we propose to estimate the CMF parameters for one particular octant based on not only samples from the particular octant but also samples from neighboring octants in order to reduce color discontinuity artifacts.

    Abstract translation: 在可缩放视频编码中，增强层（EL）图像通常从解码的基本层（BL）图像预测。 当EL图像和BL图像用不同的颜色空间表示时，例如将经解码的BL图像变换到EL的颜色空间可以改进预测。 为了从BL准确地预测，BL图像的颜色空间可以被划分成多个八分圆，其中每个八分圆与相应的一组颜色映射函数（CMF）参数相关联。 在一个实施例中，我们建议基于不仅来自特定八分圆的样本，而且基于来自相邻八分圆的样本，来估计一个特定八分圆的CMF参数，以便减少颜色不连续的伪像。

    CODING AND DECODING METHODS OF A PICTURE BLOCK, CORRESPONDING DEVICES AND DATA STREAM
    5.
    发明申请
    CODING AND DECODING METHODS OF A PICTURE BLOCK, CORRESPONDING DEVICES AND DATA STREAM 审中-公开
    图片块，相关设备和数据流的编码和解码方法

    公开(公告)号：US20160007034A1

    公开(公告)日：2016-01-07

    申请号：US14768929

    申请日：2014-02-17

    Applicant: THOMSON LICENSING

    Inventor： Philippe BORDES ,  Franck HIRON ,  Pierre ANDRIVON ,  Patrick LOPEZ ,  Philippe SALMON

    IPC: H04N19/44 ,  H04N19/50 ,  H04N19/176

    CPC classification number: H04N19/44 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/573 ,  H04N21/2358 ,  H04N21/4384

    Abstract: A method for decoding a picture block is disclosed. The decoding method comprises: reconstructing reference picture from another reference picture of a decoder picture buffer of a first layer of a multi-layered stream and from data decoded from a second layer of said multi-layered stream and storing said reference picture in a decoder picture buffer of said second layer, wherein said reference picture is indicated as not to be displayed; decoding a flag indicating that a subsequently decoded picture of the second layer is not using any inter-layer prediction; and reconstructing a picture block of said subsequently decoded picture at least from said reference picture.

    Abstract translation: 公开了一种解码图像块的方法。 解码方法包括：从多层流的第一层的解码器图像缓冲器的另一参考图像和从所述多层流的第二层解码的数据中重构参考图像，并将所述参考图像存储在解码器图像中 所述第二层的缓冲器，其中所述参考图像被指示为不显示; 解码指示第二层的后续解码图像不使用任何层间预测的标志; 以及至少从所述参考图像重构所述随后解码的图像的图像块。

    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
    6.
    发明申请
    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
    基于色彩映射模型将图像的第一和第二版本编码为基本层和增强层的方法

    公开(公告)号：US20150334412A1

    公开(公告)日：2015-11-19

    申请号：US14655240

    申请日：2013-12-23

    Applicant: THOMSON LICENSING

    Inventor： Jurgen STAUDER ,  Philippe BORDES ,  Corinne POREE

    IPC: H04N19/30 ,  H04N19/60 ,  H04N19/136

    CPC classification number: H04N19/30 ,  H04N19/136 ,  H04N19/60

    Abstract: 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.

    Abstract translation: 该方法包括以下步骤： - 对于第二版本的每个颜色，确定一个或两个变量的对应标量值，使得如果将所述标量值应用于色域映射模型 获得具有与第一版本（即增强）相对应的颜色与第二版本的颜色的最小距离的映射颜色，将所确定的标量值编码为增强层。

    METHOD OF DELIVERY AUDIOVISUAL CONTENT AND CORRESPONDING DEVICE
    8.
    发明申请
    METHOD OF DELIVERY AUDIOVISUAL CONTENT AND CORRESPONDING DEVICE 审中-公开

    公开(公告)号：US20180288452A1

    公开(公告)日：2018-10-04

    申请号：US15942544

    申请日：2018-04-01

    Applicant: THOMSON Licensing

    Inventor： Bruno LE GARJAN ,  Arunkumar PALANICHAMY ,  Philippe BORDES ,  Thierry QUERE ,  Alexey OZEROV

    IPC: H04N21/238 ,  H04N21/438 ,  H04N21/24 ,  H04N21/235

    Abstract: A solution for delivery of audiovisual content to a receiver device is provided. At the transmitter side, a transmission buffer is constituted, while offering fast channel change and fast trick modes at the receiver side. At least one GoP, starting with a first I-frame is sought in the content that is to be transmitted. The timing references of the data in the at least one GoP that is prepared for delivery to a receiver device are modified so that the data is decoded by the receiver at a slowed-down rate for a given duration. This creates a lag between reading of data in by the transmitter and decoding of data by the receiver. The lag is used by the transmitter to fill the transmission buffer, while the receiver does not have to wait for the transmission buffer to be filled to start decoding.

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