公开(公告)号：US20130174282A1

公开(公告)日：2013-07-04

申请号：US13729593

申请日：2012-12-28

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  BEIJING FOUNDER APABI TECHNOLOGY LTD. ,  PEKING UNIVERSITY ,  Founder Information Industry Holdings Co., Ltd.

发明人： Xiaoyu CUI ,  Zhi TANG

IPC分类号： G06F21/33

CPC分类号： G06F21/33 ,  G06F21/10

摘要： A digital right management method, including: encrypting, by a first user equipment which has access right to shared digital contents, a key of the digital contents with at least an equipment key of a second user equipment intended to share the digital contents to generate a ciphertext of the key of the digital contents; generating, by the first user equipment, from the ciphertext a new authorization certificate corresponding to the digital contents; and transmitting, by the first user equipment, the new authorization certificate and the digital contents to the second user equipment to instruct the second user equipment to share the digital contents in accordance with the new authorization certificate.

摘要翻译： 一种数字权利管理方法，包括：通过具有共享数字内容访问权限的第一用户设备对至少具有共享数字内容的第二用户设备的设备密钥的数字内容的密钥加密，以生成 数字内容密钥的密文; 由所述第一用户设备从所述密文生成与所述数字内容相对应的新授权证书; 以及由所述第一用户设备将所述新授权证书和所述数字内容发送给所述第二用户设备，以指示所述第二用户设备根据所述新的授权证书共享所述数字内容。

公开(公告)号：US20140348390A1

公开(公告)日：2014-11-27

申请号：US14092563

申请日：2013-11-27

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  PEKING UNIVERSITY ,  BEIJING FOUNDER APABI TECHNOLOGY LTD.

发明人： Yan LIU ,  Xiaoqing LV ,  Jianbo XU ,  Zhi TANG

IPC分类号： G06K9/00

CPC分类号： G06K9/00785

摘要： The present invention provides a method and an apparatus for detecting a traffic monitoring video. The method comprises: determining a background reference model; determining a target area image in the traffic monitoring video according to the background reference model; updating the background reference model by using the target area image; summating all target points in detection area of each frame of image in the traffic monitoring video according to the updated background reference model to obtain a total area of all the target points; segmenting the frame with the biggest total area to obtain a target area at the best position; and extracting vehicle information from the target area at the best position. By using the present invention, the accuracy of a detection result in a complex environment may be improved.

摘要翻译： 本发明提供了一种用于检测交通监控视频的方法和装置。 该方法包括：确定背景参考模型; 根据背景参考模型确定交通监控视频中的目标区域图像; 通过使用目标区域图像来更新背景参考模型; 根据更新的背景参考模型，在交通监控视频中的每帧图像的检测区域中求和所有目标点，以获得所有目标点的总面积; 以最大的总面积分割框架，以获得最佳位置的目标区域; 并从最佳位置的目标区域提取车辆信息。 通过使用本发明，可以提高复杂环境中的检测结果的精度。

公开(公告)号：US20140348378A1

公开(公告)日：2014-11-27

申请号：US14092663

申请日：2013-11-27

申请人： Peking University Founder Group Co., Ltd. ,  Beijing Founder Apabi Technology Ltd. ,  Peking University

发明人： Yan LIU ,  Xiaoqing LV ,  Jianbo XU ,  Zhi TANG

IPC分类号： G06T7/20 ,  G06T7/00

CPC分类号： G06T7/2006 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/30236

摘要： The present invention provides a method and an apparatus for detecting traffic video information. The method includes: acquiring a traffic video stream; determining color features of each frame of image in the traffic video stream; calculating the inter-frame distance between adjacent frames according to the color features; calculating the boundary of an image clustered frames' group according to the inter-frame distance by adopting an image clustering evaluation standard in RGB space and an image clustering evaluation standard in YUV space respectively; and determining a final boundary of the image clustered frames' group according to the boundaries of the image clustered frames' group in RGB space and YUV space. By using the present invention, the stability of detection results in different environments may be improved.

摘要翻译： 本发明提供一种用于检测业务视频信息的方法和装置。 该方法包括：获取业务视频流; 确定所述业务视频流中每帧图像的颜色特征; 根据颜色特征计算相邻帧之间的帧间距离; 通过采用RGB空间中的图像聚类评估标准和YUV空间中的图像聚类评估标准，根据帧间距离计算图像聚类帧组的边界; 并根据RGB空间和YUV空间中的图像聚类帧组的边界确定图像聚类帧组的最终边界。 通过使用本发明，可以提高不同环境下的检测稳定性。

公开(公告)号：US20150036933A1

公开(公告)日：2015-02-05

申请号：US14092587

申请日：2013-11-27

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  PEKING UNIVERSITY ,  BEIJING FOUNDER APABI TECHNOLOGY LTD.

发明人： Yan LIU ,  Xiaoqing LV ,  Jianbo XU ,  Zhi TANG

IPC分类号： G06K9/62 ,  G06K9/00

CPC分类号： G06K9/6214 ,  G06K9/0055 ,  G06K9/6211 ,  G06K9/6215 ,  G06K2009/6213

摘要： A method and apparatus for matching key pixels of images and a method and apparatus for matching images are disclosed. The method for matching key pixels of images includes: determining, for a key pixel to be matched of a first image, a first eigenvector, in a set of eigenvectors of a second image, matching an eigenvector of the key pixel to be matched; determining a second eigenvector, in a set of eigenvectors of the first image, matching the first eigenvector; and determining the key pixel to be matched and a key pixel corresponding to the first eigenvector as a pair of matching pixels when a coordinate vector of the key pixel to be matched is the same as a coordinate vector of a key pixel corresponding to the second eigenvector.

摘要翻译： 公开了一种用于匹配图像的关键像素的方法和装置以及用于匹配图像的方法和装置。 用于匹配图像的关键像素的方法包括：对于要匹配的第一图像的关键像素，确定第二图像的一组特征向量中的第一特征向量，以匹配要匹配的关键像素的特征向量; 在第一图像的一组特征向量中确定与第一特征向量匹配的第二特征向量; 以及当要匹配的关键像素的坐标矢量与对应于第二特征向量的关键像素的坐标矢量相同时，将要匹配的关键像素和与第一特征向量相对应的关键像素确定为一对匹配像素 。

公开(公告)号：US20140334727A1

公开(公告)日：2014-11-13

申请号：US14092621

申请日：2013-11-27

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  PEKING UNIVERSITY ,  BEIJING FOUNDER APABI TECHNOLOGY LTD.

发明人： Yan LIU ,  Xiaoqing LV ,  Jianbo XU ,  Zhi TANG ,  Xiaoyu CUI

IPC分类号： H04N1/60

CPC分类号： G06T11/001

摘要： A method and apparatus for describing an image are disclosed. The method for describing an image according to an embodiment of the invention includes: transforming an image from a BGR color space into a Gaussian derivative color model; and transforming the image from the Gaussian derivative color model into an optical reflection invariant color space, wherein the process of transforming the image from the Gaussian derivative color model into the optical reflection invariant color space includes: determining, for each pixel on the image, color channels of the pixel corresponding to the optical reflection invariant color space according to a first coefficient and a second coefficient of the pixel in the Gaussian derivative color model. The embodiments of the invention can alleviate an error in a description of an image of the same contents but with a significant change in color.

摘要翻译： 公开了一种用于描述图像的方法和装置。 根据本发明的实施例的用于描述图像的方法包括：将图像从BGR颜色空间变换为高斯导数颜色模型; 以及将所述图像从所述高斯导数颜色模型转换为光学反射不变颜色空间，其中将所述图像从所述高斯导数颜色模型变换为所述光学反射不变颜色空间的处理包括：针对所述图像上的每个像素确定颜色 根据第一系数和高斯导数颜色模型中的像素的第二系数，对应于光学反射不变色空间的像素的通道。 本发明的实施例可以减轻对相同内容的图像的描述中的错误，但是具有显着的颜色变化。

公开(公告)号：US20150067887A1

公开(公告)日：2015-03-05

申请号：US14535144

申请日：2014-11-06

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  PEKING UNIVERSITY ,  BEIJING FOUNDER APABI TECHNOLOGY LTD.

发明人： Yi WANG ,  Zhi TANG ,  Dengsha YUAN ,  Xuefeng YANG

IPC分类号： G06F21/10

CPC分类号： G06F21/10 ,  G06F21/57 ,  G06F2221/2137 ,  G06F2221/2151

摘要： A digital content rights management method and system belongs to the digital content rights management technique field. The method of the invention includes the steps: registering the system, generating the time stamp, verifying the time stamp when the system starts up, acquiring the certificate, verifying the time before accessing the digital content. The system of the invention comprises a device for accessing the digital content and a server, wherein the device for accessing the digital content comprises: a registering module, a time stamp generating module, a time stamp verification module, a certificate of authorization acquiring module, and a time verification module. The method and system have solved the problem that the digital content can still be used beyond the time limit.

摘要翻译： 数字内容权限管理方法和系统属于数字内容权限管理技术领域。 本发明的方法包括以下步骤：登录系统，生成时间戳，验证系统启动时的时间戳，获取证书，验证访问数字内容之前的时间。 本发明的系统包括用于访问数字内容的设备和服务器，其中用于访问数字内容的设备包括：注册模块，时间戳生成模块，时间戳验证模块，授权获取模块证书， 和时间验证模块。 该方法和系统解决了数字内容超出时限的问题。

公开(公告)号：US20140351320A1

公开(公告)日：2014-11-27

申请号：US14092669

申请日：2013-11-27

申请人： Peking University Founder Group Co., Ltd. ,  Peking University ,  Beijing Founder Apabi Technology Ltd.

发明人： Fei GAO ,  Li LIU ,  Xiaoyu CUI ,  Zhi TANG

IPC分类号： H04L29/06

CPC分类号： H04L67/1095

摘要： Embodiments of the invention disclose a method, system and apparatus for coordinated processing of a document, relate to the field of data processing and are intended to address the problem of how multiple clients perform coordinated operations on the document. In the invention, a server detects a document operation on a first client among respective clients at a preset frequency and sends a detection result to a second client other than the first client; and the second client displays the detection result. Apparently this solution addresses the problem of how the multiple clients perform coordinated operations on the document.

摘要翻译： 本发明的实施例公开了一种用于协调处理文档的方法，系统和装置，涉及数据处理领域，并且旨在解决多个客户端如何对文档执行协调操作的问题。 在本发明中，服务器以预设频率检测各客户端中的第一客户端上的文档操作，并将检测结果发送到第一客户端以外的第二客户端; 并且第二客户端显示检测结果。 显然，该解决方案解决了多个客户端如何对文档执行协调操作的问题。

公开(公告)号：US20160217376A1

公开(公告)日：2016-07-28

申请号：US15025566

申请日：2013-12-06

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  FOUNDER APABI TECHNOLOGY LIMITED ,  PEKING UNIVERSITY

发明人： Mao YE ,  Lifeng JIN ,  Chao LEI ,  Yuanlong WANG ,  Zhi TANG ,  Jianbo XU

IPC分类号： G06N5/02 ,  G06F17/28

CPC分类号： G06N5/022 ,  G06F16/36 ,  G06F17/28

摘要： In the method and system for knowledge extraction of this invention, knowledge extraction is realized through acquiring an initial sentence group including one or more sentences, and then comparing the length of the initial sentence group with an expected length to determine the initial sentence group to be expanded according to the comparison result. Since the sentence groups are formed by consecutive sentences, it may be guaranteed that the sentence groups themselves have good coherence in logic, so that the final sentence groups obtained through expanding the initial sentence groups have good coherence in logic correspondingly. Thus, this invention may override the drawback of lacking logical coherence in extracted knowledge information in the prior art.

摘要翻译： 在本发明的知识提取方法和系统中，通过获取包括一个或多个句子的初始句子组，然后将初始句子组的长度与预期长度进行比较来确定初始句子组，从而实现知识抽取 根据比较结果扩大。 由于句子组是由连续句子形成的，可以保证句子组本身在逻辑上具有良好的一致性，从而通过扩展初始句子组获得的最终句子组在逻辑上具有良好的一致性。 因此，本发明可以覆盖现有技术中提取的知识信息中缺少逻辑一致性的缺点。

公开(公告)号：US20160217142A1

公开(公告)日：2016-07-28

申请号：US15025460

申请日：2013-12-06

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  FOUNDER APABI TECHNOLOGY LIMITED ,  PEKING UNIVERSITY

发明人： Mao YE ,  Zhi TANG ,  Jianbo XU ,  Lifeng JIN ,  Wei WAN

IPC分类号： G06F17/30 ,  G06F3/0484

CPC分类号： G06F17/3071 ,  G06F3/0484 ,  G06F17/30666 ,  G06F17/30672 ,  G06F17/30684

摘要： The present invention provides a semantic information acquisition method and system, and corresponding keyword expansion and search methods and systems, comprising: searching for, then classifying an article; then, performing word segmentation according to the classified article to obtain the words in said category, and setting said category and words to serve as the semantic information of the keyword; also, a method and system using the semantic information acquisition method to expand a keyword, and a method and system using keyword expansion to perform a search. The described semantic information acquisition method effectively avoids the technical problems in the prior art of only being able to obtain semantic information of English vocabulary; and it also being impossible to classify semantic information based on category information. The invention is particularly suitable for searching using a keyword, searching a large number of texts, and organizing large amounts of related data and information.

摘要翻译： 本发明提供了一种语义信息获取方法和系统，以及相应的关键词扩展和搜索方法和系统，包括：搜索，然后对文章进行分类; 然后，根据分类文章执行词分割以获得所述类别中的单词，并将所述类别和单词设置为关键词的语义信息; 还有，使用语义信息获取方法来扩展关键字的方法和系统，以及使用关键词扩展来执行搜索的方法和系统。 所描述的语义信息获取方法有效地避免了现有技术中仅能够获得英语词汇的语义信息的技术问题; 并且也不可能基于类别信息对语义信息进行分类。 本发明特别适用于使用关键字搜索，搜索大量文本以及组织大量相关数据和信息。

公开(公告)号：US20160224564A1

公开(公告)日：2016-08-04

申请号：US15025448

申请日：2013-12-06

申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  FOUNDER APABI TECHNOLOGY LIMITED ,  PEKING UNIVERSITY

发明人： Mao YE ,  Jianbo XU ,  Zhi TANG ,  Lifeng JIN ,  Yuanlong WANG

IPC分类号： G06F17/30

CPC分类号： G06F17/3053 ,  G06N5/00

摘要： A method and system for key knowledge point recommendation are provided, the method comprising calculating knowledge point relationship strengths of knowledge points in a set of knowledge points; calculating weights for knowledge points according to the knowledge point relationship strengths of knowledge points in the set of knowledge points, and storing the knowledge points and weights correspondingly; determining key knowledge points according to the weights of the knowledge points and recommending the key knowledge points to a user. With this solution, knowledge point relationship strengths are obtained through calculating knowledge point relationship strengths of knowledge points in a set of knowledge points; and recommendation is given to the user for learning knowledge according to knowledge point relationship strengths, so as to help the user to learn key knowledge points selectively in a more objective and effective manner, and avoid problems of information recommendation based on fuzzy logical information recommendation technology.

摘要翻译： 提供了一种用于关键知识点推荐的方法和系统，该方法包括计算一组知识点中知识点的知识点关系强度; 根据知识点知识点的知识点关系强度计算知识点的权重，并相应地存储知识点和权重; 根据知识点的权重确定关键知识点，并向用户推荐关键知识点。 利用这个解决方案，通过计算一组知识点中知识点的知识点关系强度来获得知识点关系强度; 并根据知识点关系强度向用户提供学习知识的建议，帮助用户以更客观有效的方式有选择地学习关键知识点，避免基于模糊逻辑信息推荐技术的信息推荐问题 。