公开(公告)号：US20140267733A1

公开(公告)日：2014-09-18

申请号：US13795744

申请日：2013-03-12

Applicant: XEROX CORPORATION

Inventor： Wencheng Wu ,  Edgar A. Bernal ,  Robert P. Loce ,  Thomas F. Wade ,  Abu Islam

IPC: G08G1/054

CPC classification number: G08G1/054 ,  G08G1/0175

Abstract: When performing video-based speed enforcement a main camera and a secondary RGB traffic camera are employed to provide improved accuracy of speed measurement and improved evidentiary photo quality compared to single camera approaches. The RGB traffic camera provides sparse secondary video data at a lower cost than a conventional stereo camera. The sparse stereo processing is performed using the main camera data and the sparse RGB camera data to estimate a height of one or more tracked vehicle features, which in turn is used to improve speed estimate accuracy. By using secondary video, spatio-temporally sparse stereo processing is enabled specifically for estimating the height of a vehicle feature above the road surface.

Abstract translation: 当执行基于视频的速度执行时，与单个摄像机方法相比，使用主摄像机和次要RGB业务摄像机来提供改进的速度测量精度和改进的证据照片质量。 RGB传输相机以比传统立体相机低的成本提供稀疏的次要视频数据。 使用主相机数据和稀疏RGB相机数据来执行稀疏立体声处理，以估计一个或多个跟踪的车辆特征的高度，其又用于提高速度估计精度。 通过使用次级视频，专门用于估计路面上方的车辆特征的高度的时空稀疏立体声处理。

公开(公告)号：US09111136B2

公开(公告)日：2015-08-18

申请号：US13677548

申请日：2012-11-15

Applicant: Xerox Corporation

Inventor： Peter Paul ,  Abu Islam

IPC: H04N7/18 ,  G06K9/00 ,  G08G1/017 ,  G07B15/06 ,  G07C5/00

CPC classification number: G06K9/00369 ,  G07B15/063 ,  G07C5/008 ,  G08G1/0175

Abstract: A multi-view imaging system for Vehicle Occupancy Detection (VOD) including a gantry mounted camera and illuminator to view the front seat of vehicles, and a roadside mounted camera and illuminator to view the rear seat of vehicles. The system controls the illuminator units to preserve/maximize bulb life, thus reducing the service cost of the system. In one embodiment, a target vehicle's license plate is read. If the vehicle is on a pre-approved list to use the HOV lane, then no further interrogation of the vehicle is performed. If the vehicle is not on the pre-approved list, then the front seats are interrogated by a camera and illuminator located on an overhead gantry as the vehicle continues down the highway. If the front seat analysis indicates that the passenger seat is not occupied, then the system interrogates the rear seats using a separate camera and illuminator located on the roadside.

Abstract translation: 一种用于车辆占用检测（VOD）的多视图成像系统，包括具有龙门架的照相机和照明器，用于观察车辆的前座椅，以及路边安装的照相机和照明器，以观察车辆的后座。 系统控制照明器单元以保持/最大化灯泡寿命，从而降低系统的服务成本。 在一个实施例中，读取目标车辆的车牌。 如果车辆在预先批准的列表上使用HOV车道，则不进行车辆的进一步询问。 如果车辆不在预先批准的列表上，则当车辆继续沿着高速公路行驶时，前排座椅被位于架空机架上的相机和照明器询问。 如果前排座椅分析表明乘客座椅未被占用，则系统使用位于路边的独立摄像机和照明器来询问后排座椅。

公开(公告)号：US20130278768A1

公开(公告)日：2013-10-24

申请号：US13677548

申请日：2012-11-15

Applicant: XEROX CORPORATION

Inventor： Peter Paul ,  Abu Islam

IPC: G06K9/00

CPC classification number: G06K9/00369 ,  G07B15/063 ,  G07C5/008 ,  G08G1/0175

Abstract: A multi-view imaging system for Vehicle Occupancy Detection (VOD) including a gantry mounted camera and illuminator to view the front seat of vehicles, and a roadside mounted camera and illuminator to view the rear seat of vehicles. The system controls the illuminator units to preserve/maximize bulb life, thus reducing the service cost of the system. In one embodiment, a target vehicle's license plate is read. If the vehicle is on a pre-approved list to use the HOV lane, then no further interrogation of the vehicle is performed. If the vehicle is not on the pre-approved list, then the front seats are interrogated by a camera and illuminator located on an overhead gantry as the vehicle continues down the highway. If the front seat analysis indicates that the passenger seat is not occupied, then the system interrogates the rear seats using a separate camera and illuminator located on the roadside.

Abstract translation: 一种用于车辆占用检测（VOD）的多视图成像系统，包括具有龙门架的照相机和照明器，用于观察车辆的前座椅，以及路边安装的照相机和照明器，以观察车辆的后座。 系统控制照明器单元以保持/最大化灯泡寿命，从而降低系统的服务成本。 在一个实施例中，读取目标车辆的车牌。 如果车辆在预先批准的列表上使用HOV车道，则不进行车辆的进一步询问。 如果车辆不在预先批准的列表上，则当车辆继续沿着高速公路行驶时，前排座椅被位于架空机架上的相机和照明器询问。 如果前排座椅分析表明乘客座椅未被占用，则系统使用位于路边的独立摄像机和照明器来询问后排座椅。

公开(公告)号：US09183746B2

公开(公告)日：2015-11-10

申请号：US13795744

申请日：2013-03-12

Applicant: Xerox Corporation

Inventor： Wencheng Wu ,  Edgar A. Bernal ,  Robert P. Loce ,  Thomas F. Wade ,  Abu Islam

IPC: H04N7/18 ,  G08G1/054 ,  G08G1/017

CPC classification number: G08G1/054 ,  G08G1/0175

Abstract: When performing video-based speed enforcement a main camera and a secondary RGB traffic camera are employed to provide improved accuracy of speed measurement and improved evidentiary photo quality compared to single camera approaches. The RGB traffic camera provides sparse secondary video data at a lower cost than a conventional stereo camera. The sparse stereo processing is performed using the main camera data and the sparse RGB camera data to estimate a height of one or more tracked vehicle features, which in turn is used to improve speed estimate accuracy. By using secondary video, spatio-temporally sparse stereo processing is enabled specifically for estimating the height of a vehicle feature above the road surface.

Abstract translation: 当执行基于视频的速度执行时，与单个摄像机方法相比，使用主摄像机和次要RGB业务摄像机来提供改进的速度测量精度和改进的证据照片质量。 RGB传输相机以比传统立体相机低的成本提供稀疏的次要视频数据。 使用主相机数据和稀疏RGB相机数据来执行稀疏立体声处理，以估计一个或多个跟踪的车辆特征的高度，其又用于提高速度估计精度。 通过使用次级视频，专门用于估计路面上方的车辆特征的高度的时空稀疏立体声处理。