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    • 4. 发明申请
    • METHOD AND APPARATUS FOR CONTENT DISTRIBUTION FOR MULTISCREEN VIEWING
    • 用于多视图内容分发的方法和装置
    • WO2014194487A1
    • 2014-12-11
    • PCT/CN2013/076768
    • 2013-06-05
    • THOMSON LICENSINGXU, YanDU, LinZHOU, Wei
    • XU, YanDU, LinZHOU, Wei
    • H04N21/63H04L12/911
    • H04N21/2385H04N21/222H04N21/2355H04N21/25883H04N21/4126H04N21/43615H04N21/4383H04N21/4402H04N21/44218H04N21/64738
    • A method transmitting a video program having an initial video quality and information related to the video program to multiple devices having an initial information quality is disclosed. The method comprises receiving a request for the video program from one of the first and second devices, both registered in an account; allocating first and second amounts of bandwidth, respectively, to one of the two devices and the other of the two devices according to first available bandwidth; transmitting to the one device the video program having a first quality satisfying the first allocated amount of bandwidth, but not the information related to the video program; transmitting to the other device the information related to the video program having a second quality satisfying the second allocated amount of bandwidth, but not the video program; and responsive to first view change information of a user, adjusting the first and second allocated amounts to maximize quality of content received by the device having a view of the user according to the first view change information.
    • 公开了一种将具有初始视频质量的视频节目和与视频节目有关的信息发送给具有初始信息质量的多个装置的方法。 该方法包括从帐户中登记的第一和第二装置之一接收对视频节目的请求; 根据第一可用带宽分别将第一和第二数量的带宽分配给两个设备之一和两个设备中的另一个; 向所述一个设备发送具有满足所述第一分配带宽量的第一质量的视频节目,而不是与所述视频节目相关的信息; 向所述另一设备发送与具有满足所述第二分配带宽量的第二质量而不是所述视频节目的所述视频节目相关的信息; 并且响应于用户的第一视图改变信息,调整第一和第二分配量以使具有根据第一视图变化信息的用户视图的设备接收到的内容的质量最大化。
    • 7. 发明申请
    • 3D VIDEO REPRESENTATION USING INFORMATION EMBEDDING
    • 使用信息嵌入的3D视频表示
    • WO2014015460A1
    • 2014-01-30
    • PCT/CN2012/079026
    • 2012-07-23
    • THOMSON LICENSINGDU, LinSONG, JianpingXU, Yan
    • DU, LinSONG, JianpingXU, Yan
    • H04N13/00
    • G06T1/0028G06T1/0085H04N13/111H04N2213/003
    • Layered depth image (LDI) and other more complicated 3D formats contain color, depth, and/or alpha channel information for visible pixels (base layer) and occluded pixels (occluded layers) of 3D video data. The present principles form 2D+depth/2D+delta representation using the information for the visible pixels, and embed the information for the occluded pixels into the 2D+depth/2D+delta content. When embedding, the occluded pixels that are more likely to be viewed from other view angles or used in multiple viewpoint video rendering are provided with stronger protection from transmission or compression errors. In one example, watermarking based on Least Significant Bit (LSB) and Spread Spectrum Watermarking (SSW) is used to illustrate the embedding process and the corresponding extraction process.
    • 分层深度图像(LDI)和其他更复杂的3D格式包含3D视频数据的可见像素(基本层)和遮挡像素(遮挡层)的颜色,深度和/或Alpha通道信息。 本原理使用可见像素的信息形成2D +深度/ 2D +δ表示,并将封闭像素的信息嵌入到2D +深度/ 2D +δ内容中。 当嵌入时,更有可能从其他视角观看或在多视点视频呈现中使用的遮挡像素具有更强的防止传输或压缩错误的保护。 在一个示例中,使用基于最低有效位(LSB)和扩频水印(SSW)的水印来说明嵌入过程和相应的提取过程。