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    • 2. 发明授权
    • Distance measurements between computing devices
    • 计算设备之间的距离测量
    • US09170325B2
    • 2015-10-27
    • US13599823
    • 2012-08-30
    • Zengbin ZhangDavid Chiyuan ChuThomas MoscibrodaXiaomeng ChenFeng Zhao
    • Zengbin ZhangDavid Chiyuan ChuThomas MoscibrodaXiaomeng ChenFeng Zhao
    • G01S3/80G01S11/14
    • G01S11/14
    • Some implementations provide techniques and arrangements for distance measurements between computing devices. Some examples determine a distance between devices based at least in part on a propagation time of audio tones between the devices. Further, some examples determine the arrival time of the audio tones by performing autocorrelation on streaming data corresponding to recorded sound to determine a timing of an autocorrelation peak indicative of a detection of an audio tone in the streaming data. In some cases, cross correlation may be performed on the streaming data in a search window to determine a timing of a cross correlation peak indicative of the detection of the audio tone in the streaming data. The location of the search window in time may be determined based at least in part on the timing of the detected autocorrelation peak.
    • 一些实现提供了用于计算设备之间的距离测量的技术和布置。 一些示例至少部分地基于设备之间的音频音调的传播时间来确定设备之间的距离。 此外,一些示例通过对与记录的声音相对应的流数据执行自相关来确定音频音调的到达时间,以确定指示流数据中的音频音调的检测的自相关峰值的定时。 在一些情况下,可以在搜索窗口中对流数据执行互相关,以确定指示流数据中的音频音调的检测的互相关峰值的定时。 可以至少部分地基于检测到的自相关峰值的定时来确定搜索窗口在时间上的位置。
    • 5. 发明授权
    • Methods and apparatuses for facilitating content-based image retrieval
    • 用于促进基于内容的图像检索的方法和装置
    • US08571358B2
    • 2013-10-29
    • US12982698
    • 2010-12-30
    • Feng ZhaoHao Wang
    • Feng ZhaoHao Wang
    • G06K9/54G06F7/00
    • G06F17/30256
    • Methods and apparatuses are provided for facilitating content-based image retrieval. A method may include determining a selected target image. The method may further include generating a candidate region of interest set including one or more regions of interest within the target image. The method may additionally include determining a recommended region of interest set including one or more recommended regions of interest selected from the candidate region of interest set based at least in part upon evaluation criteria. The evaluation criteria may be determined based at least in part upon analysis of maintained region of interest-based searching history. The method may also include providing the recommended region of interest set for user selection of one or more target regions of interest from the recommended region of interest set as query criteria for searching an image library for one or more result images. Corresponding apparatuses are also provided.
    • 提供了用于促进基于内容的图像检索的方法和装置。 方法可以包括确定所选择的目标图像。 该方法还可以包括在目标图像内生成包括一个或多个感兴趣区域的关注集合候选区域。 该方法可以另外包括至少部分地基于评估标准来确定包括一个或多个推荐兴趣区域的兴趣区域,所述推荐区域选自所述候选区域集合。 评估标准可以至少部分地基于对维护的基于兴趣的搜索历史的区域的分析来确定。 该方法还可以包括为推荐的感兴趣区域设置用户选择一个或多个感兴趣的目标区域作为用于搜索图像库的一个或多个结果图像的查询准则的建议的兴趣区域。 还提供了相应的装置。
    • 9. 发明申请
    • Location Estimation Using Image Analysis
    • 使用图像分析的位置估计
    • US20120148091A1
    • 2012-06-14
    • US13401582
    • 2012-02-21
    • Aman KansalFeng Zhao
    • Aman KansalFeng Zhao
    • G06K9/00
    • G06F17/30241G01C21/20G01C21/206G01S5/16G06F17/30247G06F17/30265G06F17/30268G06K9/4642G06K9/4652G06K9/6202
    • An implementation of location estimation using image analysis is described. In this implementation, an image of a place is obtained and matched with previously stored images. The matching may be achieved by employing methods based on key feature extraction algorithm, color histogram analysis, pattern matching or other image comparison techniques. Upon determining a match, the location information associated with the image provides the location. The location information may be in the form of location tags or location keywords and the location information may be used by the user or other applications for the purposes of location determination. The technique allows for the user to enter location information. The location information may be assigned to the previously stored images residing in local and remote databases for users and applications to assign information or keywords to images.
    • 描述使用图像分析的位置估计的实现。 在该实现中,获得位置的图像并与先前存储的图像匹配。 可以通过采用基于关键特征提取算法,颜色直方图分析,模式匹配或其他图像比较技术的方法来实现匹配。 在确定匹配时,与图像相关联的位置信息提供位置。 位置信息可以是位置标签或位置关键字的形式,并且位置信息可以由用户或其他应用用于位置确定的目的。 该技术允许用户输入位置信息。 位置信息可以被分配给驻留在本地和远程数据库中的先前存储的图像,供用户和应用将信息或关键词分配给图像。