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1. 发明申请

US20090169065A1 Detecting and indexing characters of videos by NCuts and page ranking 有权
标题翻译：通过NCuts和页面排名检测和索引视频的字符
公开(公告)号：US20090169065A1
公开(公告)日：2009-07-02
申请号：US12006019
申请日：2007-12-28
申请人： Tao Wang , Jianguo Li , Du Yangzhou , Yimin Zhang
发明人： Tao Wang , Jianguo Li , Du Yangzhou , Yimin Zhang
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06K9/00268 , G06F17/30781
摘要： Apparatuses, systems, and computer program products that detect and/or index characters of videos are disclosed. One or more embodiments comprise an apparatus an apparatus having a feature extraction module and a cast indexing module. The feature extraction module may extract features of a scale invariant feature transform (SIFT) for face sets of a video and the cast indexing module may detect one or more characters of the video via one or more associations of clusters of the features. Some alternative embodiments may include a cast ranking module to sort characters of the video, considering such factors as appearance times of the characters, appearance frequencies of the characters, and page rankings of the characters. The apparatus may associate or partition the clusters based on a normalized cut process, as well as detect the characters based on measures of distances of nodes associated with the features. Numerous embodiments may detect the characters based upon partitioning the clusters via solutions for eigenvalue systems for matrices of nodes of the clusters.
摘要翻译：公开了检测和/或索引视频字符的装置，系统和计算机程序产品。一个或多个实施例包括具有特征提取模块和铸造分度模块的装置的装置。特征提取模块可以提取视频的面部集合的尺度不变特征变换（SIFT）的特征，并且投射索引模块可以经由特征的聚类的一个或多个关联来检测视频的一个或多个字符。考虑到字符的出现时间，字符的出现频率以及字符的页面排序等因素，一些备选实施例可以包括用于对视频的字符进行排序的投射排序模块。该设备可以基于归一化的切割过程来关联或分割群集，并且基于与特征相关联的节点的距离的测量来检测角色。许多实施例可以基于通过针对簇的节点的矩阵的特征值系统的解决方案来划分簇来检测字符。

2. 发明授权

US08705810B2 Detecting and indexing characters of videos by NCuts and page ranking 有权
标题翻译：通过NCuts和页面排名检测和索引视频的字符
公开(公告)号：US08705810B2
公开(公告)日：2014-04-22
申请号：US12006019
申请日：2007-12-28
申请人： Tao Wang , Jianguo Li , Du Yangzhou , Yimin Zhang
发明人： Tao Wang , Jianguo Li , Du Yangzhou , Yimin Zhang
IPC分类号： G06K9/00
CPC分类号： G06K9/00268 , G06F17/30781
摘要： Apparatuses, systems, and computer program products that detect and/or index characters of videos are disclosed. One or more embodiments comprise an apparatus an apparatus having a feature extraction module and a cast indexing module. The feature extraction module may extract features of a scale invariant feature transform (SIFT) for face sets of a video and the cast indexing module may detect one or more characters of the video via one or more associations of clusters of the features. Some alternative embodiments may include a cast ranking module to sort characters of the video, considering such factors as appearance times of the characters, appearance frequencies of the characters, and page rankings of the characters. The apparatus may associate or partition the clusters based on a normalized cut process, as well as detect the characters based on measures of distances of nodes associated with the features. Numerous embodiments may detect the characters based upon partitioning the clusters via solutions for eigenvalue systems for matrices of nodes of the clusters.
摘要翻译：公开了检测和/或索引视频字符的装置，系统和计算机程序产品。一个或多个实施例包括具有特征提取模块和铸造分度模块的装置的装置。特征提取模块可以提取视频的面部集合的尺度不变特征变换（SIFT）的特征，并且投射索引模块可以经由特征的聚类的一个或多个关联来检测视频的一个或多个字符。考虑到字符的出现时间，字符的出现频率以及字符的页面排序等因素，一些备选实施例可以包括用于对视频的字符进行排序的投射排序模块。该设备可以基于归一化的切割过程来关联或分割群集，并且基于与特征相关联的节点的距离的测量来检测角色。许多实施例可以基于通过针对簇的节点的矩阵的特征值系统的解决方案来划分簇来检测字符。

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