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49 条记录 (耗时 0.046 秒)

    Systems and methods for indexing presentation videos
    41.
    发明授权
    Systems and methods for indexing presentation videos 有权
    用于索引演示视频的系统和方法

    公开(公告)号：US08280158B2

    公开(公告)日：2012-10-02

    申请号：US12687790

    申请日：2010-01-14

    申请人： John Adcock ,  Matthew Cooper ,  Laurent Denoue ,  Hamed Pirsiavash

    发明人： John Adcock ,  Matthew Cooper ,  Laurent Denoue ,  Hamed Pirsiavash

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00751

    摘要： A system and method for identifying key frames of a presentation video that include stationary informational content. A sequence of frames is obtained from a presentation video and differences of pixel values between consecutive frames of the sequence of frames are computed. Sets of consecutive frames that are stationary are identified, wherein consecutive frames that are stationary have a proportion of changed pixel values below a first predetermined threshold, and wherein pixel values are deemed to be changed when the difference between the pixel values for corresponding pixels in consecutive frames exceeds a second predetermined threshold. Next, a set of key frames that include stationary informational content is retained. The set of key frames that include stationary informational content is then displayed for user interaction.

    摘要翻译： 一种用于识别包括固定信息内容的演示视频的关键帧的系统和方法。 从呈现视频获得帧序列，并且计算帧序列的连续帧之间的像素值的差异。 识别静止的连续帧的集合，其中静止的连续帧具有低于第一预定阈值的改变的像素值的比例，并且当连续的相应像素的像素值之间的差被认为改变像素值 帧超过第二预定阈值。 接下来，保留包括固定信息内容的一组关键帧。 然后显示包括固定信息内容的关键帧的集合以供用户交互。

    System and method for identifying document genres
    42.
    发明授权
    System and method for identifying document genres 有权
    识别文件类型的系统和方法

    公开(公告)号：US08260062B2

    公开(公告)日：2012-09-04

    申请号：US12437526

    申请日：2009-05-07

    申请人： Francine R. Chen ,  Yijuan Lu ,  Matthew Cooper

    发明人： Francine R. Chen ,  Yijuan Lu ,  Matthew Cooper

    IPC分类号： G06K9/62 ,  G06K9/46 ,  H04N1/36 ,  G06F12/00

    CPC分类号： G06K9/00463

    摘要： A system, a computer readable storage medium including instructions, and method for generating genre models used to identify genres of a document. For each document image in a set of document images that are associated with one or more genres, the document image is segmented into a plurality of tiles, wherein the tiles in the plurality of tiles are sized so that document page features are identifiable, and features of the document image and the plurality of tiles are computed. At least one genre classifier is trained to classify document images as being associated with one or more genres based on the features of the document images in the set of document images, the features of the plurality of tiles of the set of documents images, and the one or more genres associated with each document image in the set of documents images.

    摘要翻译： 一种系统，包括指令的计算机可读存储介质，以及用于生成用于识别文档类型的类型模型的方法。 对于与一个或多个类型相关联的一组文档图像中的每个文档图像，文档图像被分割成多个瓦片，其中多个瓦片中的瓦片的大小设定为使得文档页面特征是可识别的，并且特征 的文档图像和多个瓦片被计算。 对文档图像集合中的文档图像的特征，文档图像集合中的多个瓦片的特征以及文档图像的特征进行训练，将文档图像分类为与一个或多个流派相关联的至少一个类型分类器 与文档集合图像中的每个文档图像相关联的一个或多个流派。

    System and method for video summarization
    43.
    发明授权
    System and method for video summarization 有权
    视频摘要的系统和方法

    公开(公告)号：US08200063B2

    公开(公告)日：2012-06-12

    申请号：US11860436

    申请日：2007-09-24

    申请人： Francine Chen ,  Matthew Cooper ,  John Adcock

    发明人： Francine Chen ,  Matthew Cooper ,  John Adcock

    IPC分类号： H04N9/80

    CPC分类号： G11B27/28 ,  G06F17/30787 ,  G06F17/30802 ,  G06F17/30811 ,  G06F17/30843

    摘要： The subject invention relates to a system and method for video summarization, and more specifically to a system for segmenting and classifying data from a video in order to create a summary video that preserves and summarizes relevant content. In one embodiment, the system first extracts appearance, motion, and audio features from a video in order to create video segments corresponding to the extracted features. The video segments are then classified as dynamic or static depending on the appearance-based and motion-based features extracted from each video segment. The classified video segments are then grouped into clusters to eliminate redundant content. Select video segments from each cluster are selected as summary segments, and the summary segments are compiled to form a summary video. The parameters for any of the steps in the summarization of the video can be altered so that a user can adapt the system to any type of video, although the system is designed to summarize unstructured videos where the content is unknown. In another aspect, audio features can also be used to further summarize video with certain audio properties.

    摘要翻译： 本发明涉及一种用于视频摘要的系统和方法，更具体地涉及一种用于从视频分割和分类数据以便创建保留和总结相关内容的摘要视频的系统。 在一个实施例中，系统首先从视频中提取外观，运动和音频特征，以便创建对应于所提取的特征的视频段。 视频片段根据从每个视频段中提取的基于外观和基于运动的特征，被分类为动态或静态。 然后将分类的视频片段分组成簇以消除冗余内容。 选择每个群集中的视频片段作为摘要片段，并将摘要片段编译为一个摘要视频。 视频总结中的任何步骤的参数可以被改变，使得用户可以使系统适应任何类型的视频，尽管系统被设计为总结内容未知的非结构化视频。 另一方面，也可以使用音频特征来进一步总结具有某些音频属性的视频。

    SYSTEMS AND METHODS FOR SCALABLE MEDIA CATEGORIZATION
    45.
    发明申请
    SYSTEMS AND METHODS FOR SCALABLE MEDIA CATEGORIZATION 有权
    可扩展媒体分类的系统和方法

    公开(公告)号：US20100177956A1

    公开(公告)日：2010-07-15

    申请号：US12353212

    申请日：2009-01-13

    申请人： Matthew Cooper ,  Dong Wang

    发明人： Matthew Cooper ,  Dong Wang

    IPC分类号： G06K9/62

    CPC分类号： G06K9/00664

    摘要： Systems and methods for automating digital file classification are described. The systems and methods include generating a plurality of classifiers from a plurality of first features of a plurality of first digital files, each of the plurality of first digital files having one or more associated annotations. A plurality of second features extracted from a plurality of second digital files is sorted according to the plurality of classifiers. A distance vector is determined between the second features and respective first features for the corresponding ones of the classifiers and the determined distances are ranked. A subset of matched files is selected based on the ranking. The subset of matched files correspond to respective one or more associated annotations. One or more annotations associated with the subset of matched files are associated to subsequently received digital files using the corresponding ones of the classifiers.

    摘要翻译： 描述用于自动化数字文件分类的系统和方法。 所述系统和方法包括从多个第一数字文件的多个第一特征生成多个分类器，所述多个第一数字文件中的每一个具有一个或多个相关联的注释。 根据多个分类器对从多个第二数字文件提取的多个第二特征进行分类。 在第二特征和对应的分类器的相应第一特征之间确定距离矢量，并且对所确定的距离进行排序。 基于排名选择匹配文件的子集。 匹配文件的子集对应于相应的一个或多个相关注释。 与匹配文件的子集相关联的一个或多个注释与随后接收的数字文件相关联，使用相应的分类器。