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41. 发明申请

US20170255831A1 SYSTEM AND METHOD FOR RELEVANCE ESTIMATION IN SUMMARIZATION OF VIDEOS OF MULTI-STEP ACTIVITIES 有权
公开(公告)号：US20170255831A1
公开(公告)日：2017-09-07
申请号：US15061463
申请日：2016-03-04
申请人： Xerox Corporation
发明人： Edgar A. Bernal , Qun Li , Yun Zhang , Jayant Kumar , Raja Bala
IPC分类号： G06K9/00 , G06K9/62
CPC分类号： G06K9/00751 , G06K9/00718 , G06K9/00765 , G06K9/6227 , G06K9/6269 , H04L65/4084 , H04L65/605 , H04L67/04 , H04L67/42 , H04L69/16
摘要： A method and system for identifying content relevance comprises acquiring video data, mapping the acquired video data to a feature space to obtain a feature representation of the video data, assigning the acquired video data to at least one action class based on the feature representation of the video data, and determining a relevance of the acquired video data.

42. 发明授权

US09736493B2 System and method for achieving computationally efficient motion estimation in video compression based on motion direction and magnitude prediction 有权
公开(公告)号：US09736493B2
公开(公告)日：2017-08-15
申请号：US14541550
申请日：2014-11-14
申请人： Xerox Corporation
发明人： Edgar A. Bernal , Qun Li , Stuart Schweid , Wencheng Wu
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/57
CPC分类号： H04N19/57
摘要： Block-based motion estimation of video compression estimates the direction and magnitude of motion of objects in the scene in a computationally efficient manner and accurately predicts the optimal search direction/neighborhood location for motion vectors. A system can include a motion detection module that detects apparent motion in the scene, a motion direction and magnitude prediction module that estimates the direction and magnitude of motion of the objects detected to be in motion by the motion detection module, and a block-based motion estimation module that performs searches in reduced neighborhoods of the target block according to the estimated motion by the motion direction and magnitude prediction module and only for the blocks determined to be in motion by the motion detection module. The Invention is particularly well suited for stationary traffic cameras that monitor roads and highways for traffic law enforcement purposes.

43. 发明申请

US20170061202A1 HUMAN IDENTITY VERIFICATION VIA AUTOMATED ANALYSIS OF FACIAL ACTION CODING SYSTEM FEATURES 有权
标题翻译：人脸识别系统特征自动分析
公开(公告)号：US20170061202A1
公开(公告)日：2017-03-02
申请号：US14840745
申请日：2015-08-31
申请人： Xerox Corporation
发明人： Matthew Adam Shreve , Jayant Kumar , Qun Li , Edgar A. Bernal , Raja Bala
IPC分类号： G06K9/00 , G06K9/52 , G06K9/62
CPC分类号： G06K9/00315 , G06K9/00758 , G06K9/623
摘要： A method, computer readable medium and apparatus for verifying an identity of an individual based upon facial expressions as exhibited in a query video of the individual are disclosed. The method includes receiving a reference video for each one of a plurality of different individuals, wherein a plurality of facial gesture encoders is extracted from at least one frame of the reference video describing one or more facial expressions of each one of the plurality of different individuals, receiving the query video, calculating a similarity score for the reference video for the each one of the plurality of different individuals based on an analysis that compares the plurality of facial gesture encoders of the at least one frame of the reference video for the each one of the plurality of different individuals to a plurality of facial gesture encoders extracted from at least one frame of the query video.
摘要翻译：公开了一种基于个人的查询视频中显示的基于面部表情来验证个人身份的方法，计算机可读介质和装置。该方法包括接收多个不同个体中的每一个的参考视频，其中从描述多个不同个体中的每一个的一个或多个面部表情的参考视频的至少一个帧中提取多个面部手势编码器接收查询视频，基于比较每个参考视频的至少一帧的多个面部手势编码器的分析，计算多个不同个体中的每个个体的参考视频的相似性得分将所述多个不同个体的多个人脸手势编码器从所述查询视频的至少一个帧中提取出来。

44. 发明授权

US09525860B2 Enhancing a spatio-temporal resolution of a depth data stream 有权
标题翻译：增强深度数据流的时空分辨率
公开(公告)号：US09525860B2
公开(公告)日：2016-12-20
申请号：US14107534
申请日：2013-12-16
申请人： Xerox Corporation
发明人： Wencheng Wu , Edgar A. Bernal , Himanshu J. Madhu , Michael C. Mongeon
IPC分类号： H04N13/00
CPC分类号： H04N13/139 , H04N13/111 , H04N13/128 , H04N2213/003
摘要： What is disclosed is a system and method for enhancing a spatio-temporal resolution of a depth data stream. In one embodiment, time-sequential reflectance frames and time-sequential depth frames of a scene are received. If a temporal resolution of the reflectance frames is greater than the depth frames then a new depth frame is generated based on correlations determined between motion patterns in the sequence of reflectance frames and the sequence of depth frames. The new depth frame is inserted into the sequence of depth frames at a selected time point. If a spatial resolution of the reflectance frames is greater than the depth frames then the spatial resolution of a selected depth frame is enhanced by generating new pixel depth values which are added to the selected depth frame. The spatially enhanced depth frame is then inserted back into the sequence of depth frames.
摘要翻译：公开的是用于增强深度数据流的时空分辨率的系统和方法。在一个实施例中，接收场景的时序反射帧和时间顺序深度帧。如果反射率帧的时间分辨率大于深度帧，则基于在反射帧序列中的运动模式和深度帧序列之间确定的相关性来生成新的深度帧。在所选择的时间点将新的深度帧插入到深度帧序列中。如果反射率帧的空间分辨率大于深度帧，则通过生成添加到所选择的深度帧的新像素深度值来增强所选深度帧的空间分辨率。然后将空间增强的深度帧插入到深度帧序列中。

45. 发明授权

US09514537B2 System and method for adaptive depth map reconstruction 有权
标题翻译：自适应深度图重建系统和方法
公开(公告)号：US09514537B2
公开(公告)日：2016-12-06
申请号：US14141610
申请日：2013-12-27
申请人： Xerox Corporation
发明人： Edgar A. Bernal , Wencheng Wu , Lalit Keshav Mestha
IPC分类号： G06K9/00 , G06T7/00 , G06K9/46
CPC分类号： G06T7/0075 , G06K9/4604 , G06T7/11 , G06T7/521 , G06T7/593 , G06T2207/10016 , G06T2207/10024 , G06T2207/20004 , G06T2207/20104 , G06T2207/30201
摘要： What is disclosed is a system and method for adaptively reconstructing a depth map of a scene. In one embodiment, upon receiving a mask identifying a region of interest (ROI), a processor changes either a spatial attribute of a pattern of source light projected on the scene by a light modulator which projects an undistorted pattern of light with known spatio-temporal attributes on the scene, or changes an operative resolution of a depth map reconstruction module. A sensing device detects the reflected pattern of light. A depth map of the scene is generated by the depth map reconstruction module by establishing correspondences between spatial attributes in the detected pattern and spatial attributes of the projected undistorted pattern and triangulating the correspondences to characterize differences therebetween. The depth map is such that a spatial resolution in the ROI is higher relative to a spatial resolution of locations not within the ROI.
摘要翻译：公开的是用于自适应地重建场景的深度图的系统和方法。在一个实施例中，在接收到识别感兴趣区域（ROI）的掩模之后，处理器通过光调制器来改变投射在场景上的源光的图案的空间属性，所述光调制器将未失真的光模式投射到已知的时空场景上的属性，或改变深度图重建模块的可操作分辨率。感测装置检测光的反射图案。由深度图重建模块通过建立检测图案中的空间属性与投射的未失真模式的空间属性之间的对应关系并对其对应性进行三角测量，来形成场景的深度图。深度图使得ROI中的空间分辨率相对于不在ROI内的位置的空间分辨率较高。

46. 发明授权

US09418426B1 Model-less background estimation for foreground detection in video sequences 有权
标题翻译：视频序列中前景检测的无模型背景估计
公开(公告)号：US09418426B1
公开(公告)日：2016-08-16
申请号：US14606469
申请日：2015-01-27
申请人： Xerox Corporation
发明人： Edgar A. Bernal , Qun Li
IPC分类号： G06K9/00 , G06K9/34 , G06T7/00 , G06T7/40 , H04N9/04
CPC分类号： G06T7/408 , G06T7/254 , G06T7/90 , G06T2207/10016 , G06T2207/10024 , G06T2207/20032 , G06T2207/20081 , G06T2207/30232
摘要： A camera outputs video as a sequence of video frames having pixel values in a first (e.g., relatively low dimensional) color space, where the first color space has a first number of channels. An image-processing device maps the video frames to a second (e.g., relatively higher dimensional) color representation of video frames. The mapping causes the second color representation of video frames to have a greater number of channels relative to the first number of channels. The image-processing device extracts a second color representation of a background frame of the scene. The image-processing device can then detect foreground objects in a current frame of the second color representation of video frames by comparing the current frame with the second color representation of a background frame. The image-processing device then outputs an identification of the foreground objects in the current frame of the video.
摘要翻译：相机将视频输出为具有第一（例如相对低维）色彩空间中的像素值的视频帧序列，其中第一颜色空间具有第一数量的通道。图像处理设备将视频帧映射到视频帧的第二（例如较高维度）的颜色表示。映射使得视频帧的第二颜色表示相对于第一数量的信道具有更多数量的信道。图像处理装置提取场景的背景帧的第二颜色表示。然后，图像处理装置可以通过将当前帧与背景帧的第二颜色表示进行比较来检测视频帧的第二颜色表示的当前帧中的前景对象。然后，图像处理装置输出视频的当前帧中的前景对象的标识。

47. 发明授权

US09390328B2 Static occlusion handling using directional pixel replication in regularized motion environments 有权
标题翻译：在正则化运动环境中使用定向像素复制的静态遮挡处理
公开(公告)号：US09390328B2
公开(公告)日：2016-07-12
申请号：US14262276
申请日：2014-04-25
申请人： Xerox Corporation
发明人： Matthew Adam Shreve , Qun Li , Edgar A. Bernal , Robert P. Loce
IPC分类号： G06K9/00 , G06K9/52 , G06T7/00 , G06K9/46 , G06T7/20
CPC分类号： G06K9/00624 , G06K9/46 , G06K9/52 , G06K2009/4666 , G06T5/005 , G06T5/50 , G06T7/20 , G06T7/246 , G06T2207/10016 , G06T2207/30236 , G06T2207/30241
摘要： This disclosure provides a static occlusion handling method and system for use with appearance-based video tracking algorithms where static occlusions are present. The method and system assumes that the objects to be tracked move in according to structured motion patterns within a scene, such as vehicles moving along a roadway. A primary concept is to replicate pixels associated with the tracked object from previous frames to current or future frames when the tracked object coincides with a static occlusion, where the predicted motion of the tracked object is a basis for replication of the pixels.
摘要翻译：本公开提供了一种静态遮挡处理方法和系统，用于与存在静态遮挡的基于外观的视频跟踪算法。方法和系统假设要跟踪的对象根据场景内的结构化运动模式移动，例如沿着道路行驶的车辆。主要概念是当被跟踪的对象与静态遮挡一致时，将跟踪对象与先前帧相关联的像素复制到当前或将来的帧，其中跟踪对象的预测运动是像素复制的基础。

48. 发明授权

US09323991B2 Method and system for video-based vehicle tracking adaptable to traffic conditions 有权
标题翻译：适用于交通状况的视频车辆跟踪方法和系统
公开(公告)号：US09323991B2
公开(公告)日：2016-04-26
申请号：US14089887
申请日：2013-11-26
申请人： Xerox Corporation
发明人： Edgar A. Bernal , Peter Paul , Daniel Hann , Thomas F. Wade
IPC分类号： G06K9/00 , G06T7/20
CPC分类号： G06K9/00771 , G06K9/00765 , G06K9/00785 , G06T7/215 , G06T7/223 , G06T2207/10016 , G06T2207/20021 , G06T2207/20036 , G06T2207/30232 , G06T2207/30236
摘要： A method and system for adaptable video-based object tracking includes acquiring video data from a scene of interest and identifying an initial instance of an object of interest in the acquired video data. A representation of a target object is then established. One or more motion parameters associated with said scene of interest are used to adjust the size of a search neighborhood associated with said target object. The target object is then tracked frame-by-frame in the video data.
摘要翻译：一种用于基于适应性的基于视频的对象跟踪的方法和系统包括从感兴趣的场景中获取视频数据并识别所获取的视频数据中的感兴趣对象的初始实例。然后建立目标对象的表示。与所述感兴趣场景相关联的一个或多个运动参数用于调整与所述目标对象相关联的搜索邻域的大小。然后在视频数据中逐帧跟踪目标对象。

49. 发明授权

US09253503B2 Computationally efficient motion estimation with learning capabilities for video compression in transportation and regularized environments 有权
标题翻译：运算和正则化环境中视频压缩的学习能力的计算效率运动估计
公开(公告)号：US09253503B2
公开(公告)日：2016-02-02
申请号：US13718030
申请日：2012-12-18
申请人： Xerox Corporation
发明人： Edgar A. Bernal , Stuart A. Schweid , Orhan Bulan
IPC分类号： H04N19/513 , H04N19/57
CPC分类号： H04N19/521 , H04N19/57
摘要： The method facilitates efficient motion estimation for video sequences captured with a stationary camera with respect to an object. For video captured with this type of camera, a main cause of changes between adjacent frames corresponds to object motion. In this setting the output from the motion compensation stage is the block matching algorithm describing the way pixel blocks move between adjacent frames. For video captured with cameras mounted on moving vehicles (e.g. school buses, public transportation vehicles and police cars), the motion of the vehicle itself is the largest source of apparent motion in the captured video. In both cases, the encoded set of motion vectors is a good descriptor of apparent motion of objects within the field of view of the camera.
摘要翻译：该方法有助于相对于对象利用固定照相机拍摄的视频序列的有效运动估计。对于使用这种相机拍摄的视频，相邻帧之间变化的主要原因对应于物体运动。在该设置中，来自运动补偿级的输出是描述像素块在相邻帧之间移动的方式的块匹配算法。对于搭载在移动车辆（例如校车，公共交通车辆和警车）上的摄像机拍摄的视频，车辆本身的运动是所捕获视频中最大的明显动作来源。在这两种情况下，编码的运动矢量集合是在相机视场内的物体的明显运动的良好描述符。

50. 发明授权

US09253420B2 Hyperspectral single pixel imager with fabry perot filter 有权
标题翻译：高光谱单像素成像仪与fabry perot过滤器
公开(公告)号：US09253420B2
公开(公告)日：2016-02-02
申请号：US14178904
申请日：2014-02-12
申请人： Xerox Corporation
发明人： Peter J. Nystrom , Lalit K. Mestha , Edgar A. Bernal , Xuejin Wen , Peter Gulvin
IPC分类号： H04N5/33 , G02B5/20 , H04N5/335
CPC分类号： H04N5/332 , G01J3/021 , G01J3/0229 , G01J3/0264 , G01J3/26 , G01J3/2823 , G01J3/2846 , G02B5/204 , H04N5/335
摘要： A method is provided for using a single-pixel imager in order to spatially reconstruct an image of a scene. The method can comprise the following: configuring a light filtering device including an array of imaging elements to a spatially varying optical filtering process of incoming light according to a series of spatial patterns corresponding to sampling functions. The light filtering device can be a transmissive filter including a first membrane, a second membrane, and a variable gap therebetween. The method further comprises tuning a controller for manipulating a variable dimension of the gap; and, measuring, using a photodetector of the single-pixel imager, a magnitude of an intensity of the filtered light across pixel locations in the series of spatial patterns. The magnitude of the intensity can be equivalent to an integral value of the scene across the pixel locations.
摘要翻译：提供了一种用于使用单像素成像器以便空间重建场景的图像的方法。该方法可以包括以下：根据与采样功能相对应的一系列空间模式，将包括成像元件阵列的光滤波装置配置到入射光的空间变化的光学滤波处理。光过滤装置可以是包括第一膜，第二膜和它们之间的可变间隙的透射过滤器。该方法还包括调整控制器以操纵间隙的可变尺寸; 以及使用所述单像素成像器的光电检测器测量所述一系列空间图案中的像素位置之间的经过滤光的强度的大小。强度的大小可以等于像素位置上的场景的积分值。

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