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公开(公告)号：US09727971B2
公开(公告)日：2017-08-08
申请号：US14740641
申请日：2015-06-16
Applicant: Gang Qiao , Xin Wang , Shengyin Fan , Qian Wang , Jiadan Zhu
Inventor： Gang Qiao , Xin Wang , Shengyin Fan , Qian Wang , Jiadan Zhu
CPC classification number: G06T7/194 , G06K9/00 , G06T7/11 , G06T7/174 , G06T2207/10021 , G06T2207/10028 , G06T2207/20224 , H04N13/239
Abstract: A method and a system for updating a background model based on depth are disclosed. The method includes receiving, in response to the occurrence of a predetermined background updating condition, one or more depth images captured after a time when the predetermined background updating condition occurs; obtaining, based on an original background model, foreground images in the one or more captured depth images, which are newly added compared with a depth image at the time when the predetermined background updating condition occurs; for each of foreground pixels in each of the newly added foreground images, comparing a current depth value with a previous depth value before the time when the predetermined background updating condition occurs; and updating, when the current depth value is greater than the previous depth value, the original background model as the updated background model by using the foreground pixel in the newly added foreground image.
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公开(公告)号：US09142011B2
公开(公告)日：2015-09-22
申请号：US14276053
申请日：2014-05-13
Applicant: Shengyin Fan , Xin Wang , Qian Wang , Gang Qiao
Inventor： Shengyin Fan , Xin Wang , Qian Wang , Gang Qiao
CPC classification number: G06T5/008 , G06T7/11 , G06T7/194 , G06T2200/04 , G06T2207/10012 , G06T2207/10024 , G06T2207/30196 , G06T2207/30232
Abstract: Disclosed are a shadow detection method and device. The method includes a step of obtaining a depth/disparity map and color/grayscale image from a two-lens camera or stereo camera; a step of detecting and acquiring plural foreground points; a step of projecting the acquired plural foreground points into a 3-dimensional coordinate system; a step of carrying out, in the 3-dimensional coordinate system, a clustering process with respect to the projected plural foreground points so as to divide the projected plural foreground points into one or more point clouds; a step of calculating density distribution of each of the one or more point clouds by adopting a principal component analysis algorithm so as to obtain one or more principal component values of the corresponding point cloud; and a step of determining, based on the one or more principal component values, whether the corresponding point cloud is a shadow.
Abstract translation: 公开了一种阴影检测方法和装置。 该方法包括从双镜头相机或立体相机获取深度/视差图和彩色/灰度图像的步骤; 检测并获取多个前景点的步骤; 将所获取的多个前景点投影到三维坐标系中的步骤; 在三维坐标系中执行相对于投影的多个前景点的聚类处理，以将投影的多个前景点划分成一个或多个点云的步骤; 通过采用主成分分析算法计算一个或多个点云中的每一个点的密度分布以便获得对应点云的一个或多个主成分值的步骤; 以及基于所述一个或多个主成分值来确定对应的点云是否是阴影的步骤。
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13.发明授权公开(公告)号：US10026012B2
公开(公告)日：2018-07-17
申请号：US15267329
申请日：2016-09-16
Applicant: Jiadan Zhu , Xin Wang , Shengyin Fan , Qian Wang , Bo Pang
Inventor： Jiadan Zhu , Xin Wang , Shengyin Fan , Qian Wang , Bo Pang
Abstract: A method and an apparatus for separating objects are disclosed. The method includes obtaining a depth image including a plurality of objects; obtaining a two-dimensional image including the objects; performing pixel-clustering using depth values of pixels in the depth image and pixel values of pixels in the two-dimensional image to obtain a plurality of sub-regions; performing region-clustering for the sub-regions to obtain a clustering result as an object separation result; and outputting the object separation result.
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14.发明授权公开(公告)号：US09984286B2
公开(公告)日：2018-05-29
申请号：US15148391
申请日：2016-05-06
Applicant: Xin Wang , Shengyin Fan , Qian Wang , Jiadan Zhu
Inventor： Xin Wang , Shengyin Fan , Qian Wang , Jiadan Zhu
CPC classification number: G06K9/00369 , G06K9/00778
Abstract: A method and an apparatus for detecting persons are disclosed. The method includes initially detecting the persons in a height-top-view; dividing the height-top-view into one or more regions, and estimating crowd density in each region; determining, based on the crowd density, visible regions of the initially detected persons in each of the regions; for each of the initially detected persons, extracting a first gradient feature and a second gradient feature of the person from the height-top-view, and a grayscale image or a color image corresponding to the height-top-view, respectively; for each of the initially detected persons, determining, based on the extracted first gradient feature and second gradient feature, using a previously constructed classifier corresponding to the determined visible region of the person, a confidence level of the initially detected person; and correcting, based on the confidence level, a detection result of the initially detected persons.
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公开(公告)号：US09881217B2
公开(公告)日：2018-01-30
申请号：US14935627
申请日：2015-11-09
Applicant: Xin Wang , Shengyin Fan , Gang Qiao , Qian Wang
Inventor： Xin Wang , Shengyin Fan , Gang Qiao , Qian Wang
CPC classification number: G06K9/00778 , G06K9/00369 , G06K2009/4666
Abstract: A method and an apparatus for detecting an interest degree of a crowd in a target position are disclosed. The interest degree detection method includes projecting a depth image obtained by photographing onto a height-top-view, the depth image including the crowd and the target position; dividing the height-top-view into cells; determining density of the crowd in each cell; determining a moving speed and a moving direction of the crowd in each cell; determining orientation of the crowd in each cell; and determining, based on the density, the moving speed, the moving direction and the orientation of the crowd, the interest degree of the crowd in each cell in the target position. According to this method, the interest degree of the crowd in the target position can be detected accurately, even at a crowded place where it is difficult to detect and track a single person.
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Patent Agency Ranking
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公开(公告)号：US10283097B2
公开(公告)日：2019-05-07
申请号：US15964052
申请日：2018-04-26
Applicant: Zheng Shi , Zhengzheng Pan , Xin Wang
Inventor： Zheng Shi , Zhengzheng Pan , Xin Wang
Abstract: In order to help music players without sufficient musical knowledge to adapt original music pieces but still keep the original style, the present invention provides an interactive system and the accompanying method for creating music by substituting audio tracks. The interactive system includes a database of musical elements that comprises tonality, tempo, beat, timbre, texture, chord, and pitch, a database of music that contains multiple original music pieces, and a processor. As a result, players without strong knowledge in music theories can create adapted a music piece that matches the style of the original one.
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公开(公告)号：US20180247625A1
公开(公告)日：2018-08-30
申请号：US15964052
申请日：2018-04-26
Applicant: Zheng Shi , Zhengzheng Pan , Xin Wang
Inventor： Zheng Shi , Zhengzheng Pan , Xin Wang
CPC classification number: G10H1/0025 , G10H1/38 , G10H1/40 , G10H2210/005 , G10H2210/066 , G10H2210/071 , G10H2210/076 , G10H2210/125 , G10H2240/131
Abstract: In order to help music players without sufficient musical knowledge to adapt original music pieces but still keep the original style, the present invention provides an interactive system and the accompanying method for creating music by substituting audio tracks. The interactive system includes a database of musical elements that comprises tonality, tempo, beat, timbre, texture, chord, and pitch, a database of music that contains multiple original music pieces, and a processor. As a result, players without strong knowledge in music theories can create adapted a music piece that matches the style of the original one.
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公开(公告)号：US09416348B2
公开(公告)日：2016-08-16
申请号：US13883748
申请日：2011-11-04
Applicant: Lijian Hui , Pengyu Huang , Xin Wang
Inventor： Lijian Hui , Pengyu Huang , Xin Wang
CPC classification number: C12N5/067 , A61M37/00 , C12N2501/60 , C12N2506/1307 , C12N2510/00
Abstract: The present invention relates to hepatocyte-like cells. Also disclosed are methods of making the cells and using the cells.
Abstract translation: 本发明涉及肝细胞样细胞。 还公开了制备细胞和使用细胞的方法。
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20.发明授权System and method to associate a private user identity with a public user identity 有权将私有用户身份与公共用户身份相关联的系统和方法公开(公告)号：US09060003B2
公开(公告)日：2015-06-16
申请号：US14056785
申请日：2013-10-17
Applicant: Xin Wang , Lee Chen , John Chiong
Inventor： Xin Wang , Lee Chen , John Chiong
CPC classification number: H04L63/102 , H04L12/66 , H04L29/06 , H04L61/6022 , H04L61/6068 , H04L63/02 , H04L63/0281 , H04L63/04 , H04L63/08 , H04L63/0853 , H04L63/10 , H04L63/30 , H04L63/308 , H04L65/1003 , H04L65/1006 , H04L65/1069 , H04L65/4007 , H04L67/14 , H04L67/141 , H04L67/146
Abstract: The inventive system includes a host, a network including a security gateway, and a public application. Established are an access session between the network and the host and an application session between the public application and the network. An application session record is created for the application session, and includes the user's public user identity used to access the public application, the user's private user identity used to access the network, a host identity, and an application session time, To determine the private user identity for the application session, the security gateway sends a query with the host identity and the application session time. These are compared with the host identity and access session time in an access session record, if they match, then the private user identity in the access session record is returned, and it is stored as the private user identity in the application session record.
Abstract translation: 本发明的系统包括主机，包括安全网关的网络和公共应用。 建立在网络和主机之间的访问会话以及公共应用程序和网络之间的应用程序会话。 为应用程序会话创建应用程序会话记录，并且包括用于访问公共应用程序的用户的公共用户身份，用于访问网络的用户的私人用户身份，主机身份和应用程序会话时间。要确定私人 应用程序会话的用户身份，安全网关发送具有主机身份和应用程序会话时间的查询。 将这些与访问会话记录中的主机身份和访问会话时间进行比较，如果匹配，则返回访问会话记录中的私有用户身份，并将其作为私有用户身份存储在应用程序会话记录中。
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