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1.发明授权Hybrid method and system of video and vision based access control for parking stall occupancy determination 有权基于视频和视觉的混合方法和系统的门禁占用确定访问控制公开(公告)号：US09224062B2
公开(公告)日：2015-12-29
申请号：US13963200
申请日：2013-08-09
Applicant: Xerox Corporation
Inventor： Wencheng Wu , Yao Rong Wang , Graham Pennington
CPC classification number: G06K9/3233 , G06K9/00711 , G06K9/00771 , G06K9/00785 , G06K9/6256 , G06K9/6262 , G06K9/6267 , G06T7/20 , G06T2207/10016 , G06T2207/20081 , G08G1/14
Abstract: Hybrid methods, systems and processor-readable media for video and vision based access control for parking occupancy determination. One or more image frames of a parking area of interest can be acquired from among two or more regions of interest defined with respect to the parking area of interest. The regions of interest can be analyzed for motion detection or image content change detection. An image content classification operation can be performed with respect to a first region of interest among the regions of interest based on the result of the image content change detection. An object tracking operation can then be performed with respect to a second region of interest among the regions of interest if the result of the image content classification operation indicates a presence of one or more objects of interest within the parking area of interest.
Abstract translation: 用于基于视频和视觉的访问控制的混合方法，系统和处理器可读介质，用于停车占用确定。 可以从相关于感兴趣的停车区域定义的两个或更多个关注区域中获取感兴趣的停车区域的一个或多个图像帧。 可以分析感兴趣区域的运动检测或图像内容变化检测。 可以基于图像内容变化检测的结果，针对感兴趣区域中的第一感兴趣区域执行图像内容分类操作。 如果图像内容分类操作的结果表示感兴趣的停车区域内的一个或多个感兴趣对象的存在，则可以针对感兴趣区域中的第二感兴趣区域执行对象跟踪操作。
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2.发明申请SYSTEM AND METHOD FOR ESTIMATION OF AVAILABLE PARKING SPACE THROUGH INTERSECTION TRAFFIC COUNTING 有权通过交叉点交通计算估计可行停车位的系统和方法公开(公告)号：US20140145862A1
公开(公告)日：2014-05-29
申请号：US13684817
申请日：2012-11-26
Applicant: XEROX CORPORATION
Inventor： Yao Rong Wang , Zhigang Fan , Robert P. Loce , Orhan Bulan , Norman W. Zeck , Graham Pennington
IPC: G08G1/14
Abstract: A method and structure for estimating parking occupancy within an area of interest can include the use of at least two image capture devices and a processor (e.g., a computer) which form at least part of a network. A method for estimating the parking occupancy within the area of interest can include the use of vehicle entry and exit data from the area of interest, as well as an estimated transit time for vehicles transiting through the area of interest without parking.
Abstract translation: 用于估计感兴趣区域内的停车占有率的方法和结构可以包括使用至少两个图像捕获装置和形成网络的至少一部分的处理器（例如，计算机）。 用于估计感兴趣区域内的停车占用的方法可以包括使用来自感兴趣区域的车辆入口和出口数据，以及在没有停车的情况下经过感兴趣区域的车辆的估计过境时间。
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公开(公告)号：US20170257572A1
公开(公告)日：2017-09-07
申请号：US15058660
申请日：2016-03-02
Applicant: Xerox Corporation
Inventor： Hao Wu , Howard Mizes , Wencheng Wu , Graham Pennington , Rakesh Kulkarni
CPC classification number: H04N5/23254 , G06K9/00765 , G06K9/00785 , G06K9/209 , G06T5/003 , G06T5/50 , G06T7/174 , G06T7/215 , G06T7/33 , G06T2207/10016 , G06T2207/10024 , H04N5/23267
Abstract: A method, system, and apparatus for video frame alignment comprises collecting video data comprising at least two video frames; extracting a line profile along at least one line profile in each of the at least two video frames; selecting one of the at least two video frames as a reference video frame; segmenting each of the at least one line profiles into a plurality of segmented line profile group segments; aligning the plurality of segmented line profiles with the segmented line profiles in the reference video frame; translating each of the at least two video frames for each of the plurality of corresponding segmented line profile alignments; and removing a camera shift from the at least two video frames according to the translation and alignment of the plurality of segmented line profiles with the plurality of segmented line profile in the reference video frame.
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4.发明授权公开(公告)号：US09159228B2
公开(公告)日：2015-10-13
申请号：US13684817
申请日：2012-11-26
Applicant: XEROX CORPORATION
Inventor： Yao Rong Wang , Zhigang Fan , Robert P. Loce , Orhan Bulan , Norman W. Zeck , Graham Pennington
Abstract: A method and structure for estimating parking occupancy within an area of interest can include the use of at least two image capture devices and a processor (e.g., a computer) which form at least part of a network. A method for estimating the parking occupancy within the area of interest can include the use of vehicle entry and exit data from the area of interest, as well as an estimated transit time for vehicles transiting through the area of interest without parking.
Abstract translation: 用于估计感兴趣区域内的停车占有率的方法和结构可以包括使用至少两个图像捕获装置和形成网络的至少一部分的处理器（例如，计算机）。 用于估计感兴趣区域内的停车占用的方法可以包括使用来自感兴趣区域的车辆入口和出口数据，以及在没有停车的情况下经过感兴趣区域的车辆的估计过境时间。
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公开(公告)号：US20170256165A1
公开(公告)日：2017-09-07
申请号：US15060830
申请日：2016-03-04
Applicant: Xerox Corporation
Inventor： Graham Pennington , Hao Wu , Howard Mizes , Wencheng Wu , Rakesh Kulkarni
CPC classification number: G08G1/147 , G06K9/00771 , G06K9/00812 , G06K9/3208 , G06K9/4604 , G08G1/142 , G08G1/144 , G08G1/146
Abstract: A method, system, and apparatus for parking occupancy detection comprises collecting video of a blockface with at least one video recording module, identifying a number of possible parking spaces along the blockface in the collected video, defining, a region of interest for each of the possible parking spaces, detecting a time dependent occupancy of the defined regions of interest for each of the possible parking spaces, and reporting the time dependent occupancy. Drift correction of the recorded video and ground truth comparisons of occupancy determinations may be provided.
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Patent Agency Ranking
公开(公告)号：US09852631B2
公开(公告)日：2017-12-26
申请号：US15060830
申请日：2016-03-04
Applicant: Xerox Corporation
Inventor： Graham Pennington , Hao Wu , Howard Mizes , Wencheng Wu , Rakesh Kulkarni
CPC classification number: G08G1/147 , G06K9/00771 , G06K9/00812 , G06K9/3208 , G06K9/4604 , G08G1/142 , G08G1/144 , G08G1/146
Abstract: A method, system, and apparatus for parking occupancy detection comprises collecting video of a blockface with at least one video recording module, identifying a number of possible parking spaces along the blockface in the collected video, defining, a region of interest for each of the possible parking spaces, detecting a time dependent occupancy of the defined regions of interest for each of the possible parking spaces, and reporting the time dependent occupancy. Drift correction of the recorded video and ground truth comparisons of occupancy determinations may be provided.
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7.发明授权Methods, systems and processor-readable media for parking occupancy detection utilizing laser scanning 有权使用激光扫描的停车占用检测方法，系统和处理器可读介质公开(公告)号：US09330568B2
公开(公告)日：2016-05-03
申请号：US14066954
申请日：2013-10-30
Applicant: Xerox Corporation
Inventor： Yao Rong Wang , David Cummins , Matthew Darst , Graham Pennington
IPC: G08G1/14
Abstract: Parking occupancy detection methods, systems and processor-readable media. A laser device unit includes a laser range finder, and a programmable pan-tilt unit is deployable on site to monitor one or more parking spaces. A laser emitting and receiving unit associated with the laser range finder determines the distance of an object by estimating a time difference between an emitted laser and a received laser. The laser range finder is controllable by the programmable pan-tilt unit and scans the parking spaces. A signal-processing unit can convert the measured distance profile to a parking occupancy data to provide continuous parking space estimation data for use in parking occupancy detection.
Abstract translation: 停车场占用检测方法，系统和处理器可读介质。 激光设备单元包括激光测距仪，并且现场可部署可编程摇摄单元以监视一个或多个停车位。 与激光测距仪相关联的激光发射和接收单元通过估计发射的激光器和接收的激光器之间的时间差来确定物体的距离。 激光测距仪可由可编程摇摄单元控制，并扫描停车位。 信号处理单元可以将所测量的距离轮廓转换为停车占用数据，以提供用于停车占用检测的连续停车位估计数据。
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8.发明申请METHODS, SYSTEMS AND PROCESSOR-READABLE MEDIA FOR PARKING OCCUPANCY DETECTION UTILIZING LASER SCANNING 有权使用激光扫描进行停车检测的方法，系统和处理器可读介质公开(公告)号：US20150116134A1
公开(公告)日：2015-04-30
申请号：US14066954
申请日：2013-10-30
Applicant: Xerox Corporation
Inventor： Yao Rong Wang , David Cummins , Matthew Darst , Graham Pennington
IPC: G08G1/14
Abstract: Parking occupancy detection methods, systems and processor-readable media. A laser device unit includes a laser range finder, and a programmable pan-tilt unit is deployable on site to monitor one or more parking spaces. A laser emitting and receiving unit associated with the laser range finder determines the distance of an object by estimating a time difference between an emitted laser and a received laser. The laser range finder is controllable by the programmable pan-tilt unit and scans the parking spaces. A signal-processing unit can convert the measured distance profile to a parking occupancy data to provide continuous parking space estimation data for use in parking occupancy detection.
Abstract translation: 停车场占用检测方法，系统和处理器可读介质。 激光设备单元包括激光测距仪，并且现场可部署可编程摇摄单元以监视一个或多个停车位。 与激光测距仪相关联的激光发射和接收单元通过估计发射的激光器和接收的激光器之间的时间差来确定物体的距离。 激光测距仪可由可编程摇摄单元控制，并扫描停车位。 信号处理单元可以将所测量的距离轮廓转换为停车占用数据，以提供用于停车占用检测的连续停车位估计数据。
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9.发明申请公开(公告)号：US20140198947A1
公开(公告)日：2014-07-17
申请号：US13742658
申请日：2013-01-16
Applicant: XEROX CORPORATION
Inventor： Beilei Xu , Robert P. Loce , Graham Pennington
IPC: G06K9/32
CPC classification number: G06K9/00261
Abstract: A system and method of video-based chew counting by receiving image frames from a video camera, determining feature points within the image frames from the video camera, generating a motion signal based on movement of the feature points across the image frames from the video camera, and determining a chew count based on the motion signal.
Abstract translation: 一种通过从摄像机接收图像帧的基于视频的咀嚼计数的系统和方法，确定来自摄像机的图像帧内的特征点，基于来自摄像机的图像帧上的特征点的移动产生运动信号 ，并且基于运动信号确定咀嚼计数。
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公开(公告)号：US09756248B1
公开(公告)日：2017-09-05
申请号：US15058660
申请日：2016-03-02
Applicant: Xerox Corporation
Inventor： Hao Wu , Howard Mizes , Wencheng Wu , Graham Pennington , Rakesh Kulkarni
CPC classification number: H04N5/23254 , G06K9/00765 , G06K9/00785 , G06K9/209 , G06T5/003 , G06T5/50 , G06T7/174 , G06T7/215 , G06T7/33 , G06T2207/10016 , G06T2207/10024 , H04N5/23267
Abstract: A method, system, and apparatus for video frame alignment comprises collecting video data comprising at least two video frames; extracting a line profile along at least one line profile in each of the at least two video frames; selecting one of the at least two video frames as a reference video frame; segmenting each of the at least one line profiles into a plurality of segmented line profile group segments; aligning the plurality of segmented line profiles with the segmented line profiles in the reference video frame; translating each of the at least two video frames for each of the plurality of corresponding segmented line profile alignments; and removing a camera shift from the at least two video frames according to the translation and alignment of the plurality of segmented line profiles with the plurality of segmented line profile in the reference video frame.
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