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1. 发明申请

US20160267328A1 METHOD AND APPARATUS FOR DETECTING ABNORMAL SITUATION, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM 审中-公开
标题翻译：检测异常情况的方法和装置，以及非终端计算机可读记录介质
公开(公告)号：US20160267328A1
公开(公告)日：2016-09-15
申请号：US15059787
申请日：2016-03-03
申请人： Shengyin FAN , Zhongwei CHENG , Xin WANG , Qian WANG , Gang QIAO
发明人： Shengyin FAN , Zhongwei CHENG , Xin WANG , Qian WANG , Gang QIAO
IPC分类号： G06K9/00 , H04N7/18 , G06T7/00 , G06T7/20
CPC分类号： G06K9/00771 , G06K9/4671 , G06K9/6223 , G06K2209/40
摘要： A method and an apparatus for detecting an abnormal situation are disclosed. The method includes detecting whether a first target exists in an obtained image; recognizing whether the first target holds an object, when the first target exists in the image; obtaining motion information of the object, when the first target holds the object; and determining, based on the motion information of the object, whether the abnormal situation exists.
摘要翻译：公开了一种用于检测异常情况的方法和装置。该方法包括检测所获得的图像中是否存在第一目标; 识别第一目标是否保存对象，当图像中存在第一目标时; 当所述第一目标保持所述对象时，获得所述对象的运动信息; 以及基于所述物体的运动信息来确定是否存在异常情况。

2. 发明申请

US20140341464A1 SHADOW DETECTION METHOD AND DEVICE 有权
标题翻译：阴影检测方法和设备
公开(公告)号：US20140341464A1
公开(公告)日：2014-11-20
申请号：US14276053
申请日：2014-05-13
申请人： Shengyin FAN , Xin WANG , Qian WANG , Gang QIAO
发明人： Shengyin FAN , Xin WANG , Qian WANG , Gang QIAO
IPC分类号： G06T5/00
CPC分类号： G06T5/008 , G06T7/11 , G06T7/194 , G06T2200/04 , G06T2207/10012 , G06T2207/10024 , G06T2207/30196 , G06T2207/30232
摘要： 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.
摘要翻译：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。

3. 发明申请

US20150371398A1 METHOD AND SYSTEM FOR UPDATING BACKGROUND MODEL BASED ON DEPTH 有权
标题翻译：基于深度更新背景模型的方法和系统
公开(公告)号：US20150371398A1
公开(公告)日：2015-12-24
申请号：US14740641
申请日：2015-06-16
申请人： Gang QIAO , Xin WANG , Shengyin FAN , Qian WANG , Jiadan ZHU
发明人： Gang QIAO , Xin WANG , Shengyin FAN , Qian WANG , Jiadan ZHU
IPC分类号： G06T7/00 , G06T7/20 , H04N13/00 , G06T1/00
CPC分类号： G06T7/194 , G06K9/00 , G06T7/11 , G06T7/174 , G06T2207/10021 , G06T2207/10028 , G06T2207/20224 , H04N13/239
摘要： 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.
摘要翻译：公开了一种基于深度更新背景模型的方法和系统。该方法包括响应于预定的背景更新条件的发生，接收在预定的背景更新条件发生之后捕获的一个或多个深度图像; 基于原始背景模型，获得与所述预定背景更新条件发生时的深度图像相比新添加的所述一个或多个捕获的深度图像中的前景图像; 对于每个新添加的前景图像中的每个前景像素，将当前深度值与预定背景更新条件发生之前的先前深度值进行比较; 并且通过使用新添加的前景图像中的前景像素，将当前深度值大于先前深度值的原始背景模型更新为更新的背景模型。

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