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1. 发明授权

US09262838B2 Method and apparatus for detecting traffic video information 有权
标题翻译：检测流量视频信息的方法和装置
公开(公告)号：US09262838B2
公开(公告)日：2016-02-16
申请号：US14092663
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 , G06T7/20
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。

2. 发明授权

US09208584B2 Method and apparatus for describing image 有权
标题翻译：用于描述图像的方法和装置
公开(公告)号：US09208584B2
公开(公告)日：2015-12-08
申请号：US14092621
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 , Xiaoyu Cui
IPC分类号： G06K9/00 , G06T11/00
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。

3. 发明授权

US09292750B2 Method and apparatus for detecting traffic monitoring video 有权
标题翻译：检测流量监控视频的方法和装置
公开(公告)号：US09292750B2
公开(公告)日：2016-03-22
申请号：US14092563
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： G06K9/00 , G06K9/34
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。

4. 发明申请

US20130173912A1 DIGITAL RIGHT MANAGEMENT METHOD, APPARATUS, AND SYSTEM 审中-公开
标题翻译：数字权限管理方法，设备和系统
公开(公告)号：US20130173912A1
公开(公告)日：2013-07-04
申请号：US13730148
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： H04L9/32
CPC分类号： H04L9/0825 , H04L9/083 , H04L9/3263 , H04L2209/603
摘要： A digital right management method, including: generating, by a first user equipment having access right to shared digital contents, a common public key based on one or more public keys of one or more second user equipments intended to share the digital contents, respectively; encrypting, by the first user equipment, a key of the digital contents with the common public key 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 equipments to instruct the second user equipments 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：分别基于一个或多个第二用户设备共享数字内容的一个或多个公共密钥，由具有共享数字内容访问权限的第一用户设备生成公共公钥; 由第一用户设备用公共公钥加密数字内容的密钥，以生成数字内容的密钥的密文; 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; 并且由第一用户设备将新的授权证书和数字内容发送给第二用户设备，以指示第二用户设备根据新的授权证书共享数字内容。

5. 发明授权

US09082045B2 Method and apparatus for matching key pixels, and method and apparatus for matching images 有权
标题翻译：用于匹配关键像素的方法和装置，以及用于匹配图像的方法和装置
公开(公告)号：US09082045B2
公开(公告)日：2015-07-14
申请号：US14092587
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： G06K9/48 , 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。

6. 发明申请

US20130173923A1 METHOD AND SYSTEM FOR DIGITAL CONTENT SECURITY COOPERATION 审中-公开
标题翻译：数字内容安全合作的方法与系统
公开(公告)号：US20130173923A1
公开(公告)日：2013-07-04
申请号：US13731562
申请日：2012-12-31
申请人： PEKING UNIVERSITY , PEKING UNIVERSITY FOUNDER GROUP CO., LTD. , BEIJING FOUNDER APABI TECHNOLOGY LTD.
发明人： Qin QIU , Zhi Tang , Yinyan Yu
IPC分类号： H04L9/32
CPC分类号： H04L63/0407 , H04L9/3247 , H04L63/12 , H04L2209/60 , H04L2463/101
摘要： A method for digital content security cooperation, including: creating, by a first content possessing device, a cooperation content packet of digital contents and transmitting the created cooperation content packet to at least one of a second content possessing device or a first content cooperating device, wherein the cooperation content packet includes an attribute data block and a content data block; and performing, by the first content cooperating device receiving the cooperation content packet, privilege verification according to the cooperation content packet, and after the privilege verification is passed, updating the information in the content data block in the cooperation content packet, and transmitting the cooperation content packet including the updated information to at least one of a second content cooperating device or the first content possessing device.
摘要翻译：一种用于数字内容安全合作的方法，包括：由第一内容拥有设备创建数字内容的协作内容分组，并将所创建的合作内容分组发送到第二内容拥有设备或第一内容协作设备中的至少一个，其中所述协作内容分组包括属性数据块和内容数据块; 并且由接收到合作内容分组的第一内容协作装置执行根据协作内容分组的特权验证，并且在通过特权验证之后，更新合作内容分组中的内容数据块中的信息，并且发送合作包括更新信息的内容分组发送给第二内容协作设备或第一内容拥有设备中的至少一个。

7. 发明授权

US09727536B2 Logic processing apparatus and logic processing method for composite graphs in fixed layout document 有权
公开(公告)号：US09727536B2
公开(公告)日：2017-08-08
申请号：US14104245
申请日：2013-12-12
申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. , FOUNDER APABI TECHNOLOGY LIMITED , PEKING UNIVERSITY
发明人： Canhui Xu , Zhi Tang , Xin Tao , Cao Shi
IPC分类号： G06F17/00 , G06F17/21 , G06F3/0484 , G06F17/27
CPC分类号： G06F17/212 , G06F3/0483 , G06F3/0484 , G06F17/2705 , G06K9/00463
摘要： A logic process apparatus for composite graphs in a fixed layout document is provided in this invention. The apparatus includes a composite graph block extraction unit, for extracting composite graph blocks from the fixed layout document, a document parsing unit, for parsing the fixed layout document to obtain text primitives contained therein, a legend primitive extraction unit, for extracting legend primitives from the text primitives, a correlation detection unit, for detecting correlations between the composite graph blocks and the legend primitives, and a correlation storage unit, for storing the detected correlations. A logic process method for composite graphs in a fixed layout document is also provided.

8. 发明申请

US20140337719A1 Apparatus And A Method For Logically Processing A Composite Graph In A Formatted Document 有权
标题翻译：用于逻辑处理格式化文档中的复合图形的装置和方法
公开(公告)号：US20140337719A1
公开(公告)日：2014-11-13
申请号：US14095682
申请日：2013-12-03
申请人： Peking University Founder Group Co., Ltd. , Peking University , Founder Apabi Technology Limited
发明人： Canhui Xu , Zhi Tang , Xin Tao , Cao Shi
IPC分类号： G06F3/0484 , G06F17/27
CPC分类号： G06F17/212 , G06F3/0483 , G06F3/0484 , G06F17/2705 , G06K9/00463
摘要： The present invention provides an apparatus for logically processing a composite graph in a formatted document, the apparatus comprising: a composite graph block extraction unit, used to extract a composite graph block in the formatted document; a document parsing unit, used to parse the formatted document to obtain a text element contained therein; a cutline element extraction unit, used to extract a cutline element from the text element; a correlativity detection unit, used to detect correlativity between the composite graph block and the cutline element; a correlativity storage unit, used to store the detected correlativity. The present invention also provides a method for logically processing a composite graph in a formatted document. According to the technical scheme disclosed in the present invention, it is easily achieve layout understanding of the composite graph in a graph-text mixed layout of the formatted document, so as to avoid a logical error.
摘要翻译：本发明提供一种用于逻辑处理格式化文档中的复合图形的装置，该装置包括：复合图块块提取单元，用于提取格式化文档中的复合图块; 文档解析单元，用于解析格式化的文档以获得其中包含的文本元素; 切割元素提取单元，用于从文本元素提取切割元素; 相关性检测单元，用于检测复合图形块和切割线元素之间的相关性; 相关性存储单元，用于存储检测到的相关性。本发明还提供了一种在格式化文档中逻辑地处理复合图形的方法。根据本发明公开的技术方案，可以容易地在格式化文档的图形文本混合布局中实现组合图的布局理解，以避免逻辑错误。

9. 发明授权

US09465924B2 Apparatus for preventing replay attack and method for preventing replay attack 有权
标题翻译：用于防止重放攻击的装置和防止重放攻击的方法
公开(公告)号：US09465924B2
公开(公告)日：2016-10-11
申请号：US14102686
申请日：2013-12-11
申请人： PEKING UNIVERSITY , PEKING UNIVERSITY FOUNDER GROUP CO., LTD. , FOUNDER APABI TECHNOLOGY LIMITED
发明人： Cheng Qu , Yinyan Yu , Zhi Tang
IPC分类号： G06F21/10 , H04L29/06 , G06F21/64
CPC分类号： G06F21/10 , G06F21/64 , H04L63/0823
摘要： An apparatus for preventing replay attacks and a method for preventing replay attacks are provided in this invention, wherein the apparatus for preventing replay attacks comprises: an acquisition unit for, when a request for operating a digital content is received, acquiring current location information of a set of placeholder files; a determination unit for determining whether the current location information is consistent with recorded location information of the placeholder file; a protection unit for, when inconsistent as determined by the determination unit, wherein there is a correspondence between the digital content and the set of placeholder files.
摘要翻译：本发明提供了一种用于防止重播攻击的装置和防止重放攻击的方法，其中防止重放攻击的装置包括：获取单元，用于当接收到操作数字内容的请求时，获取当前位置信息一组占位符文件; 确定单元，用于确定当前位置信息是否与占位符文件的记录位置信息一致; 保护单元，用于当由确定单元确定不一致时，其中数字内容与占位符文件集之间存在对应关系。

10. 发明申请

US20150046784A1 EXTRACTION DEVICE FOR COMPOSITE GRAPH IN FIXED LAYOUT DOCUMENT AND EXTRACTION METHOD THEREOF 审中-公开
标题翻译：固定布置文件中复合图的提取装置及其提取方法
公开(公告)号：US20150046784A1
公开(公告)日：2015-02-12
申请号：US14104064
申请日：2013-12-12
申请人： PEKING UNIVERSITY FOUNDER GROUP CO., LTD. , FOUNDER APABI TECHNOLOGY LIMITED , PEKING UNIVERSITY
发明人： Canhui XU , Zhi Tang , Xin Tao , Cao Shi
IPC分类号： G06F17/21
CPC分类号： G06K9/00463
摘要： An extraction device for the composite graph in a fixed layout document comprising: a document parsing unit, for parsing the fixed layout document, and determining the primitives of the fixed layout document and their types; a layer generation unit, for extracting text primitives so as to form a text layer, and using the rest non-text primitives to form a non-text layer; a page analysis unit, for processing the text layer and the non-text layer with page analyses respectively; a block generation unit, for generating a text block in the text layer and a graph block in the non-text layer; a correlation block determination unit, for determining text blocks correlating to every graph block and merging those correlated text blocks and graph blocks into a composite graph block; an identifier storage unit, for storing the identifiers of all the primitives contained in the composite graph block.
摘要翻译：一种用于固定布局文档中的复合图形的提取装置，包括：文档解析单元，用于解析固定布局文档，以及确定固定布局文档及其类型的图元; 层生成单元，用于提取文本图元以形成文本层，并使用其余的非文本图元来形成非文本层; 页面分析单元，用于分别用页面分析处理文本层和非文本层; 块生成单元，用于在文本层中生成文本块和非文本层中的图块; 相关块确定单元，用于确定与每个图形块相关联的文本块，并将所述相关文本块和图形块合并到合成图形块中; 标识符存储单元，用于存储复合图形块中包含的所有原语的标识符。

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