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    • 41. 发明申请
    • CONTEXT-BASED ADAPTIVE BINARY ARITHMETIC CODING (CABAC) VIDEO STREAM COMPLIANCE
    • 基于语境的自适应二进制算术编码(CABAC)视频流符合
    • US20110135143A1
    • 2011-06-09
    • US12737736
    • 2009-08-17
    • Dekun ZouJeffrey Adam BloomShan He
    • Dekun ZouJeffrey Adam BloomShan He
    • G06K9/00
    • H03M7/40G06T1/0021H04N19/13H04N19/467H04N19/513H04N19/61H04N19/70
    • A method of providing CABAC compliant changes such as watermarks comprises accessing encoded data such as video which comprise at least two blocks; creating or accessing a list of changes to the encoded data that include a direct change to a block; determining motion character or motion vector differential of non-immediate block, non-immediate blocks being adjacent to an immediate block that are immediately adjacent to the block; determining change to the immediate block based on original motion character of the block and the non-immediate block and the motion character of the block that would result from the application of the change; storing the change to the list if the change does not cause a difference to the immediate block; and evaluating other potential changes if other potential changes are available, wherein the other potential changes are subjected to the same process steps as the direct change.
    • 提供诸如水印的CABAC兼容改变的方法包括访问包括至少两个块的编码数据,例如视频; 创建或访问包括对块的直接改变的编码数据的改变列表; 确定与立即块相邻的非立即块非立即块相邻的运动特征或运动矢量差; 基于块的原始运动特征和由应用变化导致的块的非直接块和运动特性来确定对立即块的改变; 如果更改不会导致立即块的差异,则将更改存储到列表中; 并且如果其他潜在变化可用,则评估其他潜在变化,其中其他潜在变化经受与直接变化相同的处理步骤。
    • 43. 发明申请
    • Data Hiding Technique
    • 数据隐藏技术
    • US20090251490A1
    • 2009-10-08
    • US12227465
    • 2007-05-08
    • Dekun ZouJun TianJiefu ZhaiJeffrey Adam BloomJoan Llach
    • Dekun ZouJun TianJiefu ZhaiJeffrey Adam BloomJoan Llach
    • G09G5/00
    • H04N1/32251H04N1/32309H04N2201/3205H04N2201/3214H04N2201/3215H04N2201/323H04N2201/3236H04N2201/3239
    • Information available at a decoder is embedded into image content after decoding by first representing that information by at least one film grain pattern and then blending that at least one film grain pattern with the decoded image content. Such image content is typically in the form of a movie and examples of the information to be embedded include identification of the specific decoding device, the user of the decoding device, the time and date of decoding, the model number of the device, the versions of software running on the device, the status of the device or connections to the device, the contents of device registers or memory locations within the device, among many other possible data. When an unauthorized copy of image content is discovered, the copied image content undergoes a comparison to the decoded image content to generate difference data. Thereafter, the difference data undergoes comparison with a database of film grain patterns to recover the embedded data.
    • 通过首先通过至少一个胶片颗粒图案表示该信息,然后将该至少一个胶片颗粒图案与解码的图像内容进行混合,将解码器可用的信息嵌入到解码之后的图像内容中。 这样的图像内容通常是电影的形式,并且要嵌入的信息的示例包括特定解码装置的识别,解码装置的用户,解码的时间和日期,装置的型号,版本 在设备上运行的软件,设备的状态或与设备的连接,设备寄存器的内容或设备内的存储器位置以及许多其他可能的数据。 当发现图像内容的未授权复制时,复制的图像内容经历与解码图像内容的比较以产生差异数据。 此后,差分数据与胶片颗粒图案的数据库进行比较以恢复嵌入数据。