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    • 1. 发明授权
    • Local black points in aerial imagery
    • 当地黑点在航空影像中
    • US08666190B1
    • 2014-03-04
    • US13018986
    • 2011-02-01
    • David MarwoodHong GuoAaron Yonas
    • David MarwoodHong GuoAaron Yonas
    • G06K9/00
    • G06T5/008G06K9/0063G06T2207/10032G06T2207/20021G06T2207/30181
    • The system and method of use are provided for correcting digital images based on the notions of local black points. The system and method are based on determining local black points in a digital image and correcting the intensities of nearby pixels so as to remove bias in the image introduced by atmospheric conditions. By sampling only localized land imagery the claimed method computes black points that are more robust against the localized effects of atmospheric and land reflection effects than black points computed from wider areas. The result of the method is that images corrected by this method are robust to atmospheric conditions that vary with time and viewing angle.
    • 提供了系统和使用方法,用于基于局部黑点的概念校正数字图像。 该系统和方法基于确定数字图像中的局部黑点并校正附近像素的强度,以消除由大气条件引入的图像中的偏差。 通过仅对局部地形图像进行采样,所要求的方法计算对于大面积和地面反射效应的局部效应比从较宽区域计算的黑点更强的黑点。 该方法的结果是通过该方法校正的图像对随着时间和视角而变化的大气条件是鲁棒的。
    • 3. 发明授权
    • Fingerprinting image using points of interest for robust image identification
    • 使用兴趣点的指纹图像进行强大的图像识别
    • US08913851B1
    • 2014-12-16
    • US13097855
    • 2011-04-29
    • David MarwoodRichard Tucker
    • David MarwoodRichard Tucker
    • G06K9/32G06K9/66
    • G06K9/4671G06K9/00744
    • A system and method of use are provided for generating video fingerprints that are robust to rotation, stretching, scaling, flipping and other affine transformations. The system and method are based on determining points of interest for a target video image and a collection of images stored in a database. A method of identifying a copied video image is also provided through comparison of the fingerprint of the target video image with fingerprints of images in a database. The method of video fingerprinting involves: defining points of interest from a video image, determining an oriented bounding area encompassing said points of interest that have been transformed by the same transformations used to produce the oriented bounding area and creating a fingerprint by encoding the points of interest as Gray Code such that similar images have a small Hamming distance and dissimilar images have a large Hamming distance. The identification of points of interest are provided by a number of techniques including segmentation, identification of affine covariant regions and scale invariant features.
    • 提供了一种系统和使用方法,用于产生对旋转,拉伸,缩放,翻转和其他仿射变换鲁棒的视频指纹。 系统和方法基于确定目标视频图像的感兴趣点和存储在数据库中的图像的集合。 还通过将目标视频图像的指纹与数据库中的图像的指纹进行比较来提供识别复制的视频图像的方法。 视频指纹识别的方法包括:从视频图像中定义感兴趣的点,确定包含所述兴趣点的定向边界区域,所述区域已经被用于产生定向边界区域的相同变换所变换,并且通过对 兴趣为格雷码,使相似的图像具有较小的汉明距离,不相似的图像具有较大的汉明距离。 感兴趣点的识别由许多技术提供,包括分割,识别仿射协变区域和尺度不变特征。
    • 4. 发明授权
    • Creating targeting information for a user
    • 为用户创建定位信息
    • US08909631B1
    • 2014-12-09
    • US13217605
    • 2011-08-25
    • Rohan SethJoshua J. SacksMichele CovellMichael ChuShumeet BalujaDavid Marwood
    • Rohan SethJoshua J. SacksMichele CovellMichael ChuShumeet BalujaDavid Marwood
    • G06F7/00G06F17/30
    • G06F17/3087G06Q30/02
    • Methods, systems, and computer program products, including computer programs encoded on a computer readable storage medium, for providing content to a user based on the mode of the user. A method includes: providing a data structure that includes query logs; processing query logs to determine candidate queries that satisfy a criteria, the processing including determining a location of interest, if any, for each query log entry and where the criteria requires an entry to have been submitted from a location that is different from a location of interest associated with the entry; evaluating the candidate queries to determine targeting information for the location of interest; receiving a request for content from a user that is proximate to the location of interest or has expressed an interest in the location of interest; and providing content to the user based at least in part on the targeting information.
    • 方法,系统和计算机程序产品,包括在计算机可读存储介质上编码的计算机程序,用于基于用户的模式向用户提供内容。 一种方法包括:提供包括查询日志的数据结构; 处理查询日志以确定满足条件的候选查询,所述处理包括为每个查询日志条目确定感兴趣的位置(如果有的话),并且其中标准要求从不同于位置的位置提交条目 与入场有关的利息; 评估候选查询以确定感兴趣的位置的目标信息; 接收来自接近感兴趣位置的用户的内容请求,或者对感兴趣的位置表示兴趣; 以及至少部分地基于所述目标信息向所述用户提供内容。
    • 10. 发明授权
    • Mapping keywords to geographic features
    • 将关键字映射到地理位置
    • US08484198B1
    • 2013-07-09
    • US13116999
    • 2011-05-26
    • Rohan SethJoshua J. SacksMichele CovellMichael ChuShumeet BalujaDavid Marwood
    • Rohan SethJoshua J. SacksMichele CovellMichael ChuShumeet BalujaDavid Marwood
    • G06F17/30
    • G06F17/30477G06F17/3087
    • Methods, systems, and computer program products are provided for mapping keywords to geographic features. One example method includes identifying location keywords for each of a multitude of granular locations, determining a feature size for grouping granular locations over an area of interest, determining geo data for one or more features, locating all granular locations which are associated with a given feature using the geo data and forming a set of granular locations per feature, aggregating the location keywords for each granular location in a set forming a keyword mapping for the given feature, receiving an indication of a geographic location that is proximate to a user or is of interest to the user, determining a geographic feature associated with the geographic location, and targeting content for delivery to the user based at least in part on the keyword mapping.
    • 提供了方法,系统和计算机程序产品,用于将关键字映射到地理特征。 一个示例性方法包括识别多个粒度位置中的每一个的位置关键词,确定用于在感兴趣区域上分组粒度位置的特征尺寸,确定一个或多个特征的地理数据,定位与给定特征相关联的所有粒度位置 使用地理数据并且形成每个特征的一组细粒度位置,对形成用于给定特征的关键字映射的集合中的每个粒度位置聚合位置关键字,接收与用户邻近的地理位置的指示, 对用户的兴趣,确定与地理位置相关联的地理特征,以及至少部分地基于关键字映射来定位用于递送给用户的内容。