Digital watermarking to resolve multiple claims of ownership
    91.
    发明授权
    Digital watermarking to resolve multiple claims of ownership 失效
    数字水印以解决多个所有权要求

    公开(公告)号:US06272634B1

    公开(公告)日:2001-08-07

    申请号:US08918126

    申请日:1997-08-27

    IPC分类号: H04L900

    摘要: A method and apparatus for digital watermarking to resolve multiple claims of ownership is disclosed. According to one embodiment of the invention, a first watermark requiring the host data for detection is embedded into the host data. A second watermark is also embedded into the host data. According to another embodiment of the invention, a pseudo-random sequence acting as a watermark is generated based on two random keys. One of the two random keys is related to the author of the host data into which the watermark is to be embedded, whereas the other of the two random keys is dependent on the host data itself.

    摘要翻译: 公开了用于解决多个所有权要求的数字水印的方法和装置。 根据本发明的一个实施例,将要检测的主机数据的第一水印嵌入到主机数据中。 第二个水印也嵌入到主机数据中。 根据本发明的另一实施例,基于两个随机密钥生成充当水印的伪随机序列。 两个随机密钥之一与要嵌入水印的主机数据的作者相关,而两个随机密钥中的另一个依赖于主机数据本身。

    FRONT SERVICEABLE MOUNTING APPARATUS AND METHODS
    93.
    发明申请
    FRONT SERVICEABLE MOUNTING APPARATUS AND METHODS 有权
    前置可安装的安装设备和方法

    公开(公告)号:US20160230970A1

    公开(公告)日:2016-08-11

    申请号:US15010593

    申请日:2016-01-29

    IPC分类号: F21V21/30 F21V21/096

    摘要: Display module mounting apparatus and methods provide mounting features enabling ease of installation and service. The apparatus may have one or more releasable frame couplers and pivoting releasable frame couplers coupled to a display module having a display plane defined in relation to a substrate. One or more adjustable linkages may adjustably define a standoff distance between the display plane and a support frame to which the module may be mounted by the mounting apparatus. Concave and convex adjustments to the display plane may be made. Operation of pivoting action to tilt the display plane enables installation, removal, and serviceability of large displays constructed with a tiled plurality of display modules.

    摘要翻译: 显示模块安装装置和方法提供安装特征,使安装和维修变得容易。 该装置可以具有一个或多个可释放的框架耦合器和枢转的可释放的框架耦合器,其耦合到具有相对于基板限定的显示平面的显示模块。 一个或多个可调节联动装置可以可调整地限定显示平面与支撑框架之间的间隔距离,该模块可由该安装装置安装到支撑框架上。 可以对显示平面进行凹凸调整。 使显示平面倾斜的枢转动作的操作使得能够利用平铺的多个显示模块构建的大型显示器的安装,移除和可使用性。

    Image-based CAPTCHA exploiting context in object recognition
    94.
    发明授权
    Image-based CAPTCHA exploiting context in object recognition 有权
    基于图像的CAPTCHA利用对象识别中的上下文

    公开(公告)号:US08483518B2

    公开(公告)日:2013-07-09

    申请号:US12709311

    申请日:2010-02-19

    IPC分类号: G06K9/60

    摘要: Techniques for an image-based CAPTCHA for object recognition are described. The disclosure describes adding images to a database by collecting images by querying descriptive keywords to an image search engine or crawling images from the Internet.The disclosure describes generating the image-based CAPTCHA. The image is retrieved from the database, along with objects having significant values. An object is cropped from its image. The portion on the image where the object has been cropped is filled with image inpainting. The process obtains other objects from the database. The object is mixed among the other objects to form a set of candidate objects. A user is asked to select “the object” from the set of candidate objects that fits or matches the image. The image-based CAPTCHA evaluates whether a response, the selection, is from a human or a bot.

    摘要翻译: 描述了用于对象识别的基于图像的CAPTCHA的技术。 本公开内容描述了通过向图像搜索引擎查询描述性关键词或从因特网爬行图像来收集图像来向图像数据库添加图像。 该公开内容描述了生成基于图像的CAPTCHA。 从数据库中检索图像以及具有重要值的对象。 一个物体从其图像中裁剪出来。 被裁剪对象的图像部分填充有图像修复。 该进程从数据库获取其他对象。 对象在其他对象之间进行混合以形成一组候选对象。 要求用户从适合或匹配图像的候选对象集中选择“对象”。 基于图像的CAPTCHA评估响应,选择是来自人还是机器人。

    JPEG2000 syntax-compliant encryption with full scalability
    100.
    发明授权
    JPEG2000 syntax-compliant encryption with full scalability 有权
    具有完全可扩展性的JPEG2000语法兼容加密

    公开(公告)号:US08081755B2

    公开(公告)日:2011-12-20

    申请号:US11419468

    申请日:2006-05-19

    CPC分类号: H04K1/00 H04L9/0637

    摘要: A method and system is provided for encrypting an image compressed with a JPEG2000-based compression with minimal overhead so that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression and can be scaled without decrypting. The encryption system generates, for each independent encryption segment of a codestream for an image, a unique initialization vector from a global initialization vector in such a way that the initialization vectors can be generated during decryption from the global initialization vector, even after truncation. The encryption system encrypts each independent encryption segment using its unique initialization vector. The encryption system ensures that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression both as originally generated and as truncated by an encryption-unaware device.

    摘要翻译: 提供了一种方法和系统,用于以最小的开销加密用基于JPEG2000的压缩压缩的图像,使得加密的码流符合基于JPEG2000的压缩的语法,并且可以在不进行解密的情况下进行缩放。 加密系统对于图像的码流的每个独立加密段产生来自全局初始化向量的唯一初始化向量,使得即使在截断之后也可以在全局初始化向量的解密期间生成初始化向量。 加密系统使用其唯一的初始化向量来加密每个独立的加密段。 加密系统确保加密的码流符合基于JPEG2000的压缩的语法,原始生成并被加密不知情的设备截断。