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    • 2. 发明授权
    • Method for watermarking free view video with blind watermark detection
    • 用盲水印检测水印免费观看视频的方法
    • US08477991B2
    • 2013-07-02
    • US13199308
    • 2011-08-25
    • Gwenael DoerrSeverine BaudryJavier Franco-Contreras
    • Gwenael DoerrSeverine BaudryJavier Franco-Contreras
    • G06K9/00
    • G06T1/0085G06T1/005G06T2201/0065G06T2201/0083
    • The invention relates to a method for watermark embedding in multi views video comprising a plurality of views captured with a plurality of cameras comprising for each view a step of projecting the view onto a domain invariant to the plurality of views and to intermediate synthesized view, which depends on the locations, orientations, and intrinsic parameters of the cameras, resulting into an invariant vector; a step of applying a watermarking algorithm to the invariant vector resulting into a watermarked invariant vector; and a step of modifying the view to obtain a watermarked view, wherein said watermarked view when projected onto the invariant domain results into the watermarked invariant vector.The invention also relates to a method for watermark detection in a rendered view comprising a step of projecting the rendered view onto an invariant domain to the plurality of views resulting into an invariant rendered vector; a step of applying a watermark detection algorithm to the invariant rendered vector in order to assess the presence of a watermark.
    • 本发明涉及一种用于在多视图视频中嵌入水印的方法,包括用多个摄像机捕获的多个视图,所述多个摄像机包括用于每个视图的步骤,将视图投影到对多个视图不变的域和中间合成视图,其中 取决于相机的位置,方向和内在参数,导致不变矢量; 将水印算法应用于不变向量的步骤,得到水印不变矢量; 以及修改视图以获得水印视图的步骤,其中当投影到不变域上时,所述水印视图导致水印不变向量。 本发明还涉及一种用于在呈现视图中进行水印检测的方法,该方法包括以下步骤:将呈现的视图投影到不变域上,导致产生不变渲染向量的多个视图; 为了评估水印的存在,将水印检测算法应用到不变渲染矢量的步骤。
    • 3. 发明申请
    • METHOD AND DEVICE FOR CONTROLLING DISTRIBUTION OF LICENSES
    • 用于控制许可证分发的方法和装置
    • US20130318624A1
    • 2013-11-28
    • US13984068
    • 2012-02-06
    • Antoine MonsifrotGwenael DoerrOlivier CourtayAntoine RobertMarc Joye
    • Antoine MonsifrotGwenael DoerrOlivier CourtayAntoine RobertMarc Joye
    • G06F21/10
    • G06F21/105G06F21/10
    • A method for controlling distribution of licenses, a license being for an excerpt of a content item, the content item comprising a set of continuous units, each excerpt comprising a subset of the set of continuous units, A device receives an identifier of a receiver of a license, and the license or a request to generate the license, the license or the request to generate the license comprising a content identifier and at least one indicator of the units covered by the license; retrieves stored information regarding licenses previously delivered to the receiver; compares a limit value for the content item with the stored information combined with information from the license or the request to generate the license; and allows the receiver access to the license only if the limit value is not exceeded by the stored information combined with information from the license or the request to generate the license Also provided is the device.
    • 一种用于控制许可证分发的方法,用于内容项目摘录的许可证,所述内容项目包括一组连续单元,每个摘录包括所述一组连续单元的子集。设备接收所述连续单元的接收者的标识符 许可证,许可证或产生许可证的请求,许可证或生成许可证的请求,其包括内容标识符和许可证所涵盖的单元的至少一个指示符; 检索关于先前传送给接收者的许可证的存储信息; 将内容项的限制值与存储的信息结合来自许可证的信息或生成许可证的请求进行比较; 并且只有当存储的信息与来自许可证的信息或生成许可证的请求相结合的限制值不超过时,才允许接收者访问许可证。还提供了该设备。
    • 6. 发明申请
    • Method for watermarking free view video with blind watermark detection
    • 用盲水印检测水印免费观看视频的方法
    • US20120063634A1
    • 2012-03-15
    • US13199308
    • 2011-08-25
    • Gwenael DoerrSeverine BaudryJavier Franco-Contreras
    • Gwenael DoerrSeverine BaudryJavier Franco-Contreras
    • G06K9/00
    • G06T1/0085G06T1/005G06T2201/0065G06T2201/0083
    • The invention relates to a method for watermark embedding in multi views video comprising a plurality of views captured with a plurality of cameras comprising for each view a step of projecting the view onto a domain invariant to the plurality of views and to intermediate synthesized view, which depends on the locations, orientations, and intrinsic parameters of the cameras, resulting into an invariant vector ; a step of applying a watermarking algorithm to the invariant vector resulting into a watermarked invariant vector ; and a step of modifying the view to obtain a watermarked view, wherein said watermarked view when projected onto the invariant domain results into the watermarked invariant vector.The invention also relates to a method for watermark detection in a rendered view comprising a step of projecting the rendered view onto an invariant domain to the plurality of views resulting into an invariant rendered vector; a step of applying a watermark detection algorithm to the invariant rendered vector in order to assess the presence of a watermark.
    • 本发明涉及一种用于在多视图视频中嵌入水印的方法,包括用多个摄像机捕获的多个视图,所述多个摄像机包括用于每个视图的步骤,将视图投影到对多个视图不变的域和中间合成视图,其中 取决于相机的位置,方向和内在参数,导致不变矢量; 将水印算法应用于不变向量的步骤,得到水印不变矢量; 以及修改视图以获得水印视图的步骤,其中当投影到不变域上时,所述水印视图导致水印不变向量。 本发明还涉及一种用于在呈现视图中进行水印检测的方法,该方法包括以下步骤:将呈现的视图投影到不变域上,导致产生不变渲染向量的多个视图; 为了评估水印的存在,将水印检测算法应用到不变渲染矢量的步骤。