公开(公告)号：US09542746B2

公开(公告)日：2017-01-10

申请号：US14303735

申请日：2014-06-13

Applicant: Xerox Corporation

Inventor： Wencheng Wu ,  Steven R. Moore ,  Thomas F. Wade ,  Dennis L. Venable

IPC: H04N17/00 ,  H04N7/18 ,  G06T7/00

CPC classification number: G06T7/74 ,  G05D1/0234 ,  G05D2201/0216 ,  G06T2207/30204 ,  H04N7/181

Abstract: A configuration system generates a calibration target to be printed, the target including a set of machine-readable and visually-identifiable landmarks and associated location-encoding marks which encode known locations of the landmarks. A plurality of test images of the printed calibration target is acquired by the system from an image capture assembly. Positions of the landmarks in the acquired test images and the location-encoding marks in the acquired test images are detected by the system. The system decodes the locations of the landmarks from the detected location-encoding marks and spatially characterizes the image capture assembly, based on the detected positions of the landmarks in the acquired test images and their decoded known locations.

Abstract translation: 配置系统生成要打印的校准目标，目标包括一组机器可读和可视识别的地标以及编码地标的已知位置的相关联的位置编码标记。 通过系统从图像捕获组件获取打印的校准目标的多个测试图像。 所获取的测试图像中的地标的位置和所获取的测试图像中的位置编码标记由系统检测。 系统基于检测到的所获取的测试图像中的地标的位置及其解码的已知位置，从检测到的位置编码标记中解码地标的位置，并空间地表征图像捕获组件。

公开(公告)号：US09503706B2

公开(公告)日：2016-11-22

申请号：US14022488

申请日：2013-09-10

Applicant: XEROX CORPORATION

Inventor： Robert P. Loce ,  Wencheng Wu ,  Thomas F. Wade ,  Daniel S. Hann ,  Peter Paul ,  Aaron M. Burry

IPC: G03B13/00 ,  H04N5/232 ,  H04N13/02 ,  G06Q20/38 ,  G06Q20/14 ,  G06T7/20 ,  G06K9/00 ,  H04N7/18

CPC classification number: H04N13/239 ,  G06K9/00785 ,  G06Q20/145 ,  G06Q20/38 ,  G06T7/285 ,  G06T2207/30256 ,  H04N7/181

Abstract: Methods and devices acquire images using a stereo camera or camera network aimed at a first location. The first location comprises multiple parallel primary lanes merging into a reduced number of at least one secondary lane, and moving items within the primary lanes initiate transactions while in the primary lanes and complete the transactions while in the secondary lane. Such methods and devices calculate distances of the moving items from the camera to identify in which of the primary lanes each of the moving items was located before merging into the secondary lane. These methods and devices then order the transactions in a merge order corresponding to a sequence in which the moving items entered the secondary lane from the primary lanes. Also, the methods and devices output the transactions in the merge.

Abstract translation: 方法和设备使用瞄准在第一位置的立体相机或照相机网络获取图像。 第一位置包括合并到减少数量的至少一个次级车道中的多个并行主车道，并且主车道内的移动物品在主车道中启动交易，并且在次车道中完成交易。 这些方法和装置计算移动物品与照相机的距离，以识别在合并到次通道之前每个移动物品位于哪个主车道中。 这些方法和设备然后按照与从主车道进入辅助车道的移动物品的序列相对应的合并顺序来排序交易。 此外，方法和设备在合并中输出事务。

公开(公告)号：US20160267304A1

公开(公告)日：2016-09-15

申请号：US14643721

申请日：2015-03-10

Applicant: Xerox Corporation

Inventor： Wencheng Wu ,  Robert P. Loce ,  Raja Bala ,  Peter Paul ,  Thomas F. Wade ,  Dennis L. Venable ,  Steven R. Moore ,  Peter J. Knausdorf

IPC: G06K7/10 ,  G06T5/00 ,  G06K7/14

CPC classification number: G06K7/10732 ,  G06K7/10574 ,  G06K7/10722 ,  G06K7/10821 ,  G06K7/1443 ,  G06K7/146 ,  G06K7/1465 ,  G06T5/001 ,  G06T2207/10152

Abstract: Eliminate or reduce the impact of glare in printed information tag recognition applications using single- and multi-pose external illumination coupled with intelligent processing. A shelf imager can acquire shelf images for printed information tag localization and recognition. An external illuminator can provide at least one illumination condition/pose for shelf image acquisition in addition to lighting associated with the enclosed environment. A glare region of interest (ROI) detector can analyze all or a portion of the acquired shelf images for glare to determine whether additional images need to be acquired using different illumination conditions provided by the single- or multi-pose external illuminator or whether full or portion of acquired images need to be analyzed by a printed information tag locator and recognizer. A printed information tag locator and recognizer can analyze all or a portion of the acquired images to localize and recognize data printed on the printed information tags.

Abstract translation: 使用单一和多姿态外部照明加上智能处理，消除或减少眩光对印刷信息标签识别应用的影响。 架子成像器可以获取用于印刷信息标签定位和识别的搁架图像。 除了与封闭环境相关联的照明之外，外部照明器还可以为搁架图像采集提供至少一个照明条件/姿势。 眩光感兴趣区域（ROI）检测器可以分析所获取的搁架图像的全部或一部分用于眩光，以确定是否需要使用由单一或多姿态外部照明器提供的不同照明条件获取附加图像， 所获取的图像的一部分需要通过打印的信息标签定位器和识别器进行分析。 打印的信息标签定位器和识别器可以分析所获取的图像的全部或一部分，以便本地化并识别打印在打印信息标签上的数据。

公开(公告)号：US20160260051A1

公开(公告)日：2016-09-08

申请号：US14637830

申请日：2015-03-04

Applicant: Xerox Corporation

Inventor： Wencheng Wu ,  Dennis L. Venable ,  Thomas F. Wade ,  Peter Paul ,  Adrien P. Cote

IPC: G06Q10/08 ,  G06T11/60 ,  G06K9/46

CPC classification number: G06Q10/087 ,  G06T11/60

Abstract: A system to detect and maintain retail store promotional price tags (PPTs) includes a heuristic PPT description extractor module, a heuristic rule deriver module, a store shelf image acquisition system, a barcode locator and recognizer module, and a heuristic PPT classifier module. The heuristic PPT description extractor module extracts heuristic descriptions of PPTs. The heuristic rule deriver module derives a set of heuristic parameters for the PPTs. The barcode locator and recognizer module analyzes images acquired by the store shelf image acquisition system to localize and recognize barcodes. The heuristic PPT description classifier module extracts heuristic attributes from the images acquired by the store shelf image acquisition system using the set of PPT parameters supplied by the heuristic rule deriver module.

Abstract translation: 检测和维护零售店促销价格标签（PPT）的系统包括启发式PPT描述提取器模块，启发式规则提升模块，商店架图像采集系统，条形码定位器和识别器模块以及启发式PPT分类器模块。 启发式PPT描述提取器模块提取PPT的启发式描述。 启发式规则引导模块为PPT引入了一组启发式参数。 条形码定位器和识别器模块分析由商店货架图像采集系统获取的图像以定位和识别条形码。 启发式PPT描述分类器模块使用由启发式规则提升模块提供的一组PPT参数从存储架图像采集系统获取的图像中提取启发式属性。

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

IPC: G06K9/00 ,  G06K9/32 ,  G06K9/62 ,  G06T7/20 ,  G08G1/14

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。

公开(公告)号：US20150220791A1

公开(公告)日：2015-08-06

申请号：US14172525

申请日：2014-02-04

Applicant: Xerox Corporation

Inventor： Wencheng Wu ,  Edul N. Dalal ,  Yao Rong Wang

IPC: G06K9/00 ,  G06K9/62 ,  H04N7/18

CPC classification number: G06K9/00812 ,  G06K9/00785 ,  H04N7/183

Abstract: Methods and systems for training a parked vehicle detector. Video data regarding one or more parking sites can be captured. Positive training samples can then be collected from the video data based on a combination of one or more automated computing methods and human-input auxiliary information. Additionally, negative training samples can be collected from the video data based on automated image analyses with respect to the captured video data. The positive training samples and the negative training samples can then be used to train, re-train or update one or more parked vehicle detectors with respect to the parking site(s) for use in managing parking at the parking site(s).

Abstract translation: 训练停放车辆检测器的方法和系统。 可以捕获关于一个或多个停车位置的视频数据。 然后可以基于一个或多个自动计算方法和人工输入的辅助信息的组合从视频数据中收集积极的训练样本。 另外，可以基于针对所捕获的视频数据的自动图像分析从视频数据中收集负训练样本。 然后可以使用积极的训练样本和负面训练样本来训练，重新训练或更新一个或多个驻车车辆检测器相对于停车场用于管理停车场的停车场。

公开(公告)号：US20150086071A1

公开(公告)日：2015-03-26

申请号：US14033059

申请日：2013-09-20

Applicant: XEROX CORPORATION

Inventor： Wencheng Wu ,  Robert P. Loce ,  Edgar A. Bernal

IPC: G06K9/00 ,  G06T15/08 ,  G06T7/00

CPC classification number: G06T15/08 ,  G06K9/00812 ,  G06T7/0008 ,  G06T15/205 ,  G06T19/00 ,  G06T2207/10016 ,  G06T2207/30232 ,  G06T2207/30264

Abstract: A system and method for determining parking occupancy by constructing a parking area model based on a parking area, receiving image frames from at least one video camera, selecting at least one region of interest from the image frames, performing vehicle detection on the region(s) of interest, determining that there is a change in parking status for a parking space model associated with the region of interest, and updating parking status information for a parking space associated with the parking space model.

Abstract translation: 一种通过基于停车区域构建停车区域模型来确定停车占地的系统和方法，从至少一个摄像机接收图像帧，从所述图像帧中选择至少一个感兴趣区域，对所述区域进行车辆检测 ），确定与感兴趣区域相关联的停车位模型的停车状态有变化，并且更新与停车位模型相关联的停车位的停车状态信息。

公开(公告)号：US20150070471A1

公开(公告)日：2015-03-12

申请号：US14022488

申请日：2013-09-10

Applicant: XEROX CORPORATION

Inventor： Robert P. Loce ,  Wencheng Wu ,  Thomas F. Wade ,  Daniel S. Hann ,  Peter Paul ,  Aaron M. Burry

IPC: H04N13/02 ,  G06Q20/38 ,  H04N7/18

CPC classification number: H04N13/239 ,  G06K9/00785 ,  G06Q20/145 ,  G06Q20/38 ,  G06T7/285 ,  G06T2207/30256 ,  H04N7/181

Abstract: Methods and devices acquire images using a stereo camera or camera network aimed at a first location. The first location comprises multiple parallel primary lanes merging into a reduced number of at least one secondary lane, and moving items within the primary lanes initiate transactions while in the primary lanes and complete the transactions while in the secondary lane. Such methods and devices calculate distances of the moving items from the camera to identify in which of the primary lanes each of the moving items was located before merging into the secondary lane. These methods and devices then order the transactions in a merge order corresponding to a sequence in which the moving items entered the secondary lane from the primary lanes. Also, the methods and devices output the transactions in the merge.

Abstract translation: 方法和设备使用瞄准在第一位置的立体相机或照相机网络获取图像。 第一位置包括合并到减少数量的至少一个次级车道中的多个并行主车道，并且主车道内的移动物品在主车道中启动交易，并且在次车道中完成交易。 这些方法和装置计算移动物品与照相机的距离，以识别在合并到次通道之前每个移动物品位于哪个主车道中。 这些方法和设备然后按照与从主车道进入辅助车道的移动物品的序列相对应的合并顺序来排序交易。 此外，方法和设备在合并中输出事务。

公开(公告)号：US20150019436A1

公开(公告)日：2015-01-15

申请号：US13940296

申请日：2013-07-12

Applicant: Xerox Corporation

Inventor： Edul N. Dalal ,  Wencheng Wu ,  Yu An Sun ,  Julien Bourdaillet

IPC: H04N1/04 ,  G06Q20/04

CPC classification number: G06Q20/042 ,  G06K9/00483

Abstract: A method, a system, and a computer program product for processing a plurality of electronic documents are provided. The method includes marking at least one area in an electronic document selected from the plurality of electronic documents. The marked at least one area is then matched with corresponding area in the remaining electronic documents of the plurality of electronic documents. A score is computed for each of the remaining electronic documents of the plurality of electronic documents based on the matching. The plurality of electronic documents is then grouped into one or more groups based on the score.

Abstract translation: 提供了一种用于处理多个电子文档的方法，系统和计算机程序产品。 该方法包括在从多个电子文档中选择的电子文档中标记至少一个区域。 然后，将标记的至少一个区域与多个电子文档的其余电子文档中的相应区域相匹配。 基于匹配来计算多个电子文档中的剩余电子文档的分数。 然后，基于得分将多个电子文档分组成一个或多个组。

公开(公告)号：US20140363045A1

公开(公告)日：2014-12-11

申请号：US13913606

申请日：2013-06-10

Applicant: XEROX CORPORATION

Inventor： Wencheng Wu ,  Edul N. Dalal ,  Orhan Bulan

IPC: G06T5/20

CPC classification number: G06T5/50 ,  G06T5/002 ,  G06T2207/10016 ,  G06T2207/20032 ,  G06T2207/20182 ,  G06T2207/20224 ,  G06T2207/30232 ,  G06T2207/30236

Abstract: Methods and systems receive a series of images and compare at least two of the images in the series of images to locate items that are in different positions to identify moving items. Such methods and systems further calculate a measure of the moving items within the series of images. Additionally, such methods and systems perform a continuously variable image correction to remove the moving items from the images to produce a series of corrected images. This “continuously variable image correction” increases the amount of image correction for a relatively higher measure of the moving items and decreases the amount of image correction for a relatively lower measure of the moving items, and does so continuously as the measure of the moving items changes within the series of images.

Abstract translation: 方法和系统接收一系列图像并且比较一系列图像中的至少两个图像以定位处于不同位置的物体以识别移动物品。 这样的方法和系统进一步计算一系列图像内的移动物品的度量。 此外，这样的方法和系统执行连续可变的图像校正以从图像中移除移动项目以产生一系列校正图像。 这种“连续可变图像校正”增加了移动项目的相对较高测量的图像校正量，并且减少了用于移动项目的相对较低测量的图像校正量，并且作为移动项目的度量 一系列图像内的变化。