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公开(公告)号：US09218538B2
公开(公告)日：2015-12-22
申请号：US13753790
申请日：2013-01-30
Applicant: Xerox Corporation
Inventor： Zhigang Fan , Hengzhou Ding , Yonghui Zhao , Shen-Ge Wang
CPC classification number: G06K9/2027 , G06K9/3233 , G06K9/4633 , G06T7/13 , G06T7/174 , G06T2207/10152 , G06T2207/20192
Abstract: Methods and systems for detecting an object borderline. A first image with respect to the object can be captured by an image-capturing unit without a flash light and borderlines of the object can be detected. If the detection is successful, the detected borderlines can be outputted. Otherwise, a second image with respect to the object can be captured by the image-capturing unit by applying a flash light and the borderlines can be detected in the image. A geometric transformation between the two images can then be estimated. Finally, the border lines in the first image can be determined by transforming the borderlines detected in the second image. Such an approach effectively detects the appliance borderlines and avoids artifacts caused by applying flash.
Abstract translation: 用于检测物体边界线的方法和系统。 相对于物体的第一图像可以由没有闪光灯的图像拍摄单元捕获，并且可以检测对象的边界线。 如果检测成功，则可以输出检测到的边界线。 否则，可以通过应用闪光灯由图像捕获单元捕获关于对象的第二图像，并且可以在图像中检测边界线。 然后可以估计两个图像之间的几何变换。 最后，可以通过变换在第二图像中检测到的边界来确定第一图像中的边界线。 这种方法有效地检测设备的边界，并避免因应用闪光灯引起的伪影。
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公开(公告)号：US09094589B2
公开(公告)日：2015-07-28
申请号：US13866506
申请日：2013-04-19
Applicant: Xerox Corporation
Inventor： Zhigang Fan , Hengzhou Ding , Manavender Malgireddy
CPC classification number: H04N5/225 , G06K9/00664 , G06K2209/03
Abstract: A method for processing an image of a patch panel includes: a) receiving an initial image; b) determining multiple ports of the patch panel are aligned in a desired orientation in the initial image; c) processing the initial image to identify edge lines perpendicular to the desired orientation; d) processing the edge lines to identify a port hypothesis that includes an estimated port gap between the multiple ports along the desired orientation and an estimated port size for the multiple ports along the desired orientation; e) processing the port hypothesis to determine an estimated port quantity for the multiple ports; and f) processing the port hypothesis to identify an estimation error between expected and detected edge line positions in relation to a reference axis perpendicular to the edge lines. An apparatus associated therewith includes an input/output and pre-processing modules and detection, hypothesis, estimating, and scoring processors.
Abstract translation: 用于处理接线板的图像的方法包括：a）接收初始图像; b）确定接线板的多个端口在初始图像中以期望的方向对齐; c）处理初始图像以识别垂直于期望取向的边缘线; d）处理边缘线以识别端口假说，其包括沿着期望取向的多个端口之间的估计端口间隙以及沿着期望取向的多个端口的估计端口大小; e）处理端口假设以确定多个端口的估计端口数量; 以及f）处理所述端口假设以识别相对于垂直于所述边缘线的参考轴的期望和检测到的边缘线位置之间的估计误差。 与其相关联的装置包括输入/输出和预处理模块以及检测，假设，估计和评分处理器。
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3.发明申请METHOD FOR OBJECT SIZE CALIBRATION TO AID VEHICLE DETECTION FOR VIDEO-BASED ON-STREET PARKING TECHNOLOGY 有权用于基于视频的道路停放技术的用于车辆检测的对象尺寸校准的方法公开(公告)号：US20150124093A1
公开(公告)日：2015-05-07
申请号：US14070812
申请日：2013-11-04
Applicant: Xerox Corporation
Inventor： Yao Rong Wang , Orhan Bulan , Hengzhou Ding , Graham S. Pennington
CPC classification number: G06K9/00812 , G06K9/00771 , G08G1/141 , G08G1/168
Abstract: A method for determining parking availability includes receiving video data from a sequence of frames taken from an image capture device monitoring a parking area. The method includes detecting at least one object located in the parking area. The method includes determining boundaries of the parking area. The boundaries include at least an inner boundary relative to the image capture device and an outer boundary relative to the image capture device. The outer boundary is substantially parallel to the inner boundary. The method further includes computing a length of at least one of the object and a space between objects using an object pixel for each of the inner and outer boundaries. Using the computed length, The method includes determining a parking availability in the parking area. The method includes outputting a notice of the parking availability to a user.
Abstract translation: 用于确定停车可用性的方法包括从监视停车区域的图像捕获装置中取出的帧序列中接收视频数据。 该方法包括检测位于停车区域中的至少一个物体。 该方法包括确定停车区域的边界。 边界至少包括相对于图像捕获装置的内边界和相对于图像捕获装置的外边界。 外边界基本上平行于内边界。 该方法还包括使用对于每个内边界和外边界的对象像素来计算对象中的至少一个和对象之间的空间的长度。 使用计算的长度，该方法包括确定停车区域中的停车可用性。 该方法包括向用户输出停车可用性的通知。
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公开(公告)号：US20140093131A1
公开(公告)日：2014-04-03
申请号：US13665987
申请日：2012-11-01
Applicant: XEROX CORPORATION
Inventor： Zhigang Fan , Hengzhou Ding
CPC classification number: G06K9/00671 , G06F16/29 , G06T11/00 , Y02A90/15
Abstract: Methods and systems for improving driver visibility during bad weather and/or poor lighting for objects such as road signs, road lines, road markings, etc. The disclosed approach can enhance the captured images by exploiting priori knowledge about the scene and the objects that are stored in a database. In general, the orientation and location of a vehicle can be determined, and data can be retrieved which is indicative of stationary objects that are anticipated to be detectable at a current orientation and location of the vehicle. A captured scene is compared to data retrieved from the database using the information regarding the orientation and the location of the vehicle such that a matching scene indicates where objects are expected to appear in the captured scene and improve driver visibility with respect to the vehicle during poor driving conditions.
Abstract translation: 用于在恶劣天气和/或诸如道路标志，路线，道路标记等的物体的不良照明下改善驾驶员可视性的方法和系统。所公开的方法可以通过利用关于场景和物体的先验知识来增强捕获的图像 存储在数据库中。 通常，可以确定车辆的方向和位置，并且可以检索指示预定在车辆的当前方向和位置处可检测的静止物体的数据。 将捕获的场景与使用关于车辆的取向和位置的信息从数据库检索的数据进行比较，使得匹配场景指示预期在拍摄场景中出现物体的位置，并且在差的期间提高驾驶员对车辆的可视性 驾驶条件。
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公开(公告)号：US09241102B2
公开(公告)日：2016-01-19
申请号：US13705771
申请日：2012-12-05
Applicant: Xerox Corporation
Inventor： Raja Bala , Hengzhou Ding , Jayant Kumar
CPC classification number: H04N5/23229 , G06K9/036 , G06K2209/01 , G06T3/4092 , H04N1/3872 , H04N5/23254 , H04N5/23267
Abstract: A system captures or otherwise receives a video and uses the video to create an electronic file corresponding to a multi-faceted printed artifact, such as a multi-page document. When the system receives the video, it selects a set of some or all of the video's image frames, determines a frame quality for each frame in the set, and identifies a subset of the frames such that the frame quality of each frame in the subset satisfies one or more image quality criteria. The subset will include at least one frame for each facet of the multi-faceted printed artifact, such as a page of the document. The processor then automatically combines the subset of frames into a single electronic file.
Abstract translation: 系统捕获或以其他方式接收视频，并使用该视频来创建对应于多面印刷工件的电子文件，例如多页文档。 当系统接收到视频时，它选择一组视频的图像帧中的一些或全部，确定该组中每个帧的帧质量，并且识别该帧的子集，使得该子集中的每个帧的帧质量 满足一个或多个图像质量标准。 该子集将包括多面印刷工件的每个面的至少一个框架，例如文档的页面。 然后，处理器将帧的子集自动组合成单个电子文件。
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Patent Agency Ranking
6.发明授权Methods and systems for detecting patch panel ports from an image in which some ports are obscured 有权从某些端口被遮蔽的图像中检测接线板端口的方法和系统公开(公告)号：US09123111B2
公开(公告)日：2015-09-01
申请号：US13968016
申请日：2013-08-15
Applicant: Xerox Corporation
Inventor： Zhigang Fan , Subarna Ghosh , Hengzhou Ding
CPC classification number: G06T7/0042 , G06K2209/03 , G06T7/74 , G06T2207/20101 , G06T2207/20104 , H04Q1/136
Abstract: A method of estimating one or more dimensions of a patch panel may include receiving an image of a patch panel that comprises a plurality of ports and one or more gaps, extracting, by a computing device, a region of interest from the received image, detecting, by the computing device, one or more line segments from the region of interest, determining whether one or more candidate ports can be identified based on at least a portion of the line segments, and in response to determining that one or more candidate ports can be identified, identifying one or more candidate ports, and determining, by the computing device, a gap length associated with the identified candidate ports.
Abstract translation: 估计接线板的一个或多个维度的方法可以包括接收包括多个端口和一个或多个间隙的接线板的图像，由计算设备从接收到的图像提取感兴趣区域，检测 由所述计算设备，来自所述感兴趣区域的一个或多个线段，基于所述线段的至少一部分来确定是否可以识别一个或多个候选端口，并且响应于确定一个或多个候选端口可以 识别一个或多个候选端口，以及由计算设备确定与所识别的候选端口相关联的间隙长度。
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7.发明授权Methods and systems for detecting patch panel ports from an image having perspective distortion 有权用于从具有透视失真的图像检测接线板端口的方法和系统公开(公告)号：US09076241B2
公开(公告)日：2015-07-07
申请号：US13967978
申请日：2013-08-15
Applicant: Xerox Corporation
Inventor： Zhigang Fan , Subarna Ghosh , Hengzhou Ding
CPC classification number: G06T7/0042 , G06K2209/03 , G06T7/74 , G06T2207/20101 , G06T2207/20104 , H04Q1/136
Abstract: A method of estimating one or more dimensions of a patch panel may include receiving an image of a patch panel that comprises a plurality of ports and one or more gaps, extracting, by a computing device, a region of interest from the received image, detecting, by the computing device, one or more possible port edges from the region of interest, fitting the detected possible port edges to a cross-ratio constancy model to determine a port-to-gap-length ratio associated with the patch panel, using the port-length-to-gap-length ratio to determine a location of one or more final port edges, and determining a location of one or more final ports based on the location of the final port edges.
Abstract translation: 估计接线板的一个或多个维度的方法可以包括接收包括多个端口和一个或多个间隙的接线板的图像，由计算设备从接收到的图像提取感兴趣区域，检测 通过计算设备，来自感兴趣区域的一个或多个可能的端口边缘将检测到的可能的端口边缘拟合到交比率常数模型，以使用该接口面板确定与接插板相关联的端口间隙长度比 端口长度到间隙长度比以确定一个或多个最终端口边缘的位置，以及基于最终端口边缘的位置来确定一个或多个最终端口的位置。
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8.发明申请METHODS AND SYSTEMS FOR DETECTING PATCH PANEL PORTS FROM AN IMAGE IN WHICH SOME PORTS ARE OBSCURED 有权用于从其中存储一些端口的图像中检测面板面板的方法和系统公开(公告)号：US20150049903A1
公开(公告)日：2015-02-19
申请号：US13968016
申请日：2013-08-15
Applicant: Xerox Corporation
Inventor： Zhigang Fan , Subarna Ghosh , Hengzhou Ding
IPC: G06T7/00
CPC classification number: G06T7/0042 , G06K2209/03 , G06T7/74 , G06T2207/20101 , G06T2207/20104 , H04Q1/136
Abstract: A method of estimating one or more dimensions of a patch panel may include receiving an image of a patch panel that comprises a plurality of ports and one or more gaps, extracting, by a computing device, a region of interest from the received image, detecting, by the computing device, one or more line segments from the region of interest, determining whether one or more candidate ports can be identified based on at least a portion of the line segments, and in response to determining that one or more candidate ports can be identified, identifying one or more candidate ports, and determining, by the computing device, a gap length associated with the identified candidate ports.
Abstract translation: 估计接线板的一个或多个维度的方法可以包括接收包括多个端口和一个或多个间隙的接线板的图像，由计算设备从接收到的图像提取感兴趣区域，检测 由所述计算设备，来自所述感兴趣区域的一个或多个线段，基于所述线段的至少一部分来确定是否可以识别一个或多个候选端口，并且响应于确定一个或多个候选端口可以 识别一个或多个候选端口，以及由计算设备确定与所识别的候选端口相关联的间隙长度。
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公开(公告)号：US08848088B2
公开(公告)日：2014-09-30
申请号：US14070775
申请日：2013-11-04
Applicant: Xerox Corporation
Inventor： Zhigang Fan , Yonghui Zhao , Shen-ge Wang , Hengzhou Ding
CPC classification number: G06K9/00671 , G06K9/2081 , G06K9/46
Abstract: A method and apparatus for obtaining an image and providing one or more document files to a user is disclosed. The method may include receiving an image of a target object using an imaging device, analyzing the image to identify one or more features, and accessing a model database to identify an object model having features that match the identified features from the image. When the system determines that more than one model may be a match, the method looks for distinguishing features of the target object and selects a model that includes the distinguishing features. The method then includes, retrieving a document file that corresponds to the identified model from a file database, and providing the document file to a user.
Abstract translation: 公开了一种用于获得图像并向用户提供一个或多个文档文件的方法和装置。 该方法可以包括使用成像设备接收目标对象的图像，分析图像以识别一个或多个特征，以及访问模型数据库以识别具有与来自图像的识别的特征匹配的特征的对象模型。 当系统确定多个模型可能是匹配时，该方法寻找目标对象的区别特征并选择包含区别特征的模型。 该方法然后包括从文件数据库检索对应于所识别的模型的文档文件，并将文档文件提供给用户。
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公开(公告)号：US20140152849A1
公开(公告)日：2014-06-05
申请号：US13705771
申请日：2012-12-05
Applicant: XEROX CORPORATION
Inventor： Raja Bala , Hengzhou Ding , Jayant Kumar
IPC: H04N5/225
CPC classification number: H04N5/23229 , G06K9/036 , G06K2209/01 , G06T3/4092 , H04N1/3872 , H04N5/23254 , H04N5/23267
Abstract: A system captures or otherwise receives a video and uses the video to create an electronic file corresponding to a multi-faceted printed artifact, such as a multi-page document. When the system receives the video, it selects a set of some or all of the video's image frames, determines a frame quality for each frame in the set, and identifies a subset of the frames such that the frame quality of each frame in the subset satisfies one or more image quality criteria. The subset will include at least one frame for each facet of the multi-faceted printed artifact, such as a page of the document. The processor then automatically combines the subset of frames into a single electronic file.
Abstract translation: 系统捕获或以其他方式接收视频，并使用该视频来创建对应于多面印刷工件的电子文件，例如多页文档。 当系统接收到视频时，它选择一组视频的图像帧中的一些或全部，确定该组中每个帧的帧质量，并且识别该帧的子集，使得该子集中的每个帧的帧质量 满足一个或多个图像质量标准。 该子集将包括多面印刷工件的每个面的至少一个框架，例如文档的页面。 然后，处理器将帧的子集自动组合成单个电子文件。
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