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    • 65. 发明授权
    • Object trackability via parametric camera tuning
    • 通过参数摄像机调谐的对象可追踪性
    • US06952224B2
    • 2005-10-04
    • US09822549
    • 2001-03-30
    • Fernando MartinsWei Sun
    • Fernando MartinsWei Sun
    • G01S3/786G06F3/00H04N5/228H04N5/225
    • G01S3/7864
    • A method and apparatus are described for improving object trackability via parametric camera tuning. According to one embodiment the improving of object trackability comprises loading prior camera settings if any stored prior camera settings are available. If no stored prior camera settings are available, loading one of a plurality of predetermined camera settings. A determination is made whether the camera settings loaded cause saturation of the image and hue differences between objects and between the objects and a background of the video image. If the saturation and hue differences do not exceed the threshold, a search of camera settings is performed to increase saturation and hue differences between objects and between the objects and a background of the video image.
    • 描述了通过参数化相机调谐来提高对象可追踪性的方法和装置。 根据一个实施例,对象可追溯性的改进包括如果有任何存储的先前的相机设置可用,则加载先前的相机设置。 如果没有存储的先前的相机设置可用,则加载多个预定相机设置中的一个。 确定加载的相机设置是否会导致图像饱和,以及对象之间以及对象之间的色调差异以及视频图像的背景。 如果饱和度和色调差异不超过阈值,则执行相机设置的搜索以增加对象之间以及对象之间的差异和色差与视频图像的背景。
    • 70. 发明授权
    • Method for privacy-preserving order selection of encrypted element
    • 加密元素隐私保护顺序选择方法
    • US08891762B2
    • 2014-11-18
    • US12965066
    • 2010-12-10
    • Shantanu RaneWei Sun
    • Shantanu RaneWei Sun
    • H04L29/06H04L9/08
    • H04L9/0819H04L9/008H04L2209/46
    • A system and a method select an encrypted element in an encrypted vector according to an order of the encrypted element in the encrypted vector. The selecting is performed in a privacy-preserving manner. Values of the elements of the encrypted vector are scaled, such that the order of the elements in the encrypted vector is preserved, and then permuted to produce a scaled permuted vector. Information in the encrypted domain indicative of an order of elements in the scaled permuted vector is provided to a second processor having a private key. The second processor decrypts the information to determine the index of the encrypted element based on the order of the elements. The encrypted element is obliviously selected based on the index.
    • 系统和方法根据加密向量中加密元素的顺序选择加密向量中的加密元素。 以隐私保护的方式执行选择。 加密矢量的元素的值被缩放,使得保存加密矢量中的元素的顺序,然后被排列以产生缩放的置换向量。 将表示缩放置换向量中的元素的顺序的加密域中的信息提供给具有私钥的第二处理器。 第二处理器根据元素的顺序解密信息以确定加密元素的索引。 基于索引忽略加密元素。