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    Screen detector
    283.
    发明授权
    Screen detector 有权
    屏幕检测器

    公开(公告)号：US09413477B2

    公开(公告)日：2016-08-09

    申请号：US14306942

    申请日：2014-06-17

    Applicant: Microsoft Corporation

    Inventor： Achiezer Brandt ,  Eran Borenstein ,  Eitan Sharon ,  Mehmet Tek ,  Sunaad Nataraju

    IPC: G06K9/00 ,  H04H60/59 ,  H04H60/37 ,  H04N5/232 ,  G06K9/46

    CPC classification number: H04H60/59 ,  G06K9/00765 ,  G06K9/4604 ,  G06K9/4652 ,  H04H60/37 ,  H04H2201/90 ,  H04N5/23267

    Abstract: Technology described herein provides techniques for screen detection. This could be a dynamic screen, such as a display screen of an electronic device, or a static screen such as a street sign. In one aspect, a screen is detected in frames of image data. An active image and/or an average color image may be formed based on frames of image data. A set of lines that are candidate for boundaries of a screen are identified in the frames. The active image and/or an average color is integrated on both sides of each line in the set of lines to form integration results. A set of screen candidates are formed based on the integration results. Screens in the screen candidates are scored according to a criterion. One or top few of the screens in the set of screen candidates is selected based on the scoring.

    Abstract translation: 本文描述的技术提供了用于屏幕检测的技术。 这可以是动态屏幕，例如电子设备的显示屏幕，或诸如街道标志的静态屏幕。 在一个方面，在图像数据的帧中检测屏幕。 可以基于图像数据的帧来形成活动图像和/或平均彩色图像。 在帧中标识作为屏幕边界候选的一组线。 活动图像和/或平均颜色被集成在该组线中的每一行的两侧以形成积分结果。 基于积分结果形成一组屏幕候选。 屏幕候选人中的屏幕根据标准进行评分。 根据评分选择屏幕候选组中的一个或几个屏幕。

    Methods and Systems for Processing a Sample of a Media Stream
    285.
    发明申请
    Methods and Systems for Processing a Sample of a Media Stream 有权
    用于处理媒体流的样本的方法和系统

    公开(公告)号：US20160156731A1

    公开(公告)日：2016-06-02

    申请号：US15018124

    申请日：2016-02-08

    Applicant: Shazam Entertainment Ltd.

    Inventor： Avery Li-Chun Wang ,  Adrian Allan Revill

    IPC: H04L29/08 ,  H04L29/06

    CPC classification number: H04L67/2842 ,  G06F17/30743 ,  G06F17/30861 ,  G11B27/28 ,  H04H60/37 ,  H04H2201/90 ,  H04L65/601 ,  H04N21/4394 ,  H04N21/8549

    Abstract: Methods and systems for processing a sample of a media stream are provided. In one example, a method includes receiving a sample of a media stream rendered by a media rendering source, and for matching media recordings from which the sample was obtained, the method also includes receiving a signature file including a temporally mapped collection of features describing content of the matching media recordings. Each received signature file may be stored in memory. In addition, a signature stream may be received that includes features extracted from the media stream, and a number of matching features between the signature stream of the media stream and the signature file for at least one matching media recording can be determined. In one example, when substantially matching features between the signature stream of the media stream and the signature file for a matching media recording stop occurring, a discontinuity can be identified.

    Abstract translation: 提供了用于处理媒体流的样本的方法和系统。 在一个示例中，一种方法包括接收由媒体呈现源呈现的媒体流的样本，并且用于匹配从其获得样本的媒体记录，该方法还包括接收签名文件，该签名文件包括描述内容的时间映射的特征集合 的匹配媒体录制。 每个收到的签名文件都可以存储在内存中。 此外，可以接收包括从媒体流提取的特征的签名流，并且可以确定媒体流的签名流和用于至少一个匹配媒体记录的签名文件之间的多个匹配特征。 在一个示例中，当媒体流的签名流和匹配的媒体记录停止的签名文件之间基本上匹配特征时，可以识别不连续性。

    Methods and apparatus for generating signatures
    287.
    发明授权
    Methods and apparatus for generating signatures 有权
    生成签名的方法和装置

    公开(公告)号：US09326044B2

    公开(公告)日：2016-04-26

    申请号：US14074499

    申请日：2013-11-07

    Applicant: The Nielsen Company (US), LLC

    Inventor： Alexander Pavlovich Topchy ,  Arun Ramaswamy ,  Venugopal Srinivasan

    IPC: H04H60/58 ,  G11B27/28 ,  G06F17/30 ,  H04N21/442 ,  H04N21/8358 ,  G10L25/48 ,  H04H60/66 ,  H04H60/37

    CPC classification number: H04N21/8358 ,  G06F17/30743 ,  G10L25/48 ,  G11B27/28 ,  H04H60/37 ,  H04H60/58 ,  H04H60/66 ,  H04H2201/90 ,  H04N21/442

    Abstract: Signaturing methods and apparatus as described. An example method includes applying a first function to a portion of digital data to produce a first windowed block, applying a second function different from the first function to the same portion of the digital data to produce a second windowed block, determining a first characteristic of a band of frequencies in the first windowed block, determining a second characteristic of the band of frequencies in the second windowed block, comparing the first characteristic to the second characteristic, and assigning a signature bit representative of the portion of the digital data based on the comparison of the first characteristic and the second characteristic.

    Abstract translation: 所述的标记方法和装置。 一个示例性方法包括将第一函数应用于数字数据的一部分以产生第一窗口化块，将与第一函数不同的第二函数应用于数字数据的相同部分以产生第二窗口块，确定第一特征 在第一窗口化块中的频带，确定第二窗口化块中的频带的第二特性，将第一特征与第二特性进行比较，以及基于该第一特征向量分配表示数字数据部分的签名位 第一特征与第二特征的比较。

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