公开(公告)号：US09180053B2

公开(公告)日：2015-11-10

申请号：US13752631

申请日：2013-01-29

Applicant: Xerox Corporation

Inventor： Edul N. Dalal ,  Wencheng Wu

IPC: H04N7/18 ,  A61F9/08 ,  G02B27/01

CPC classification number: A61F9/08 ,  G02B27/017 ,  G02B2027/011 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178 ,  H04N7/18

Abstract: A method, system, and processor-readable medium for non-invasive visual compensation for a person suffering from central vision impairment. Digital images of a target field of view can he obtained and processed to generate processed images thereof, wherein central regions of the digital images that normally would reach an impaired portion of a retina of the person are moved to other regions of the target field of view. The processed images can be presented to the person such that the central regions are now directed at an unimpaired peripheral portion of the retina of the person.

Abstract translation: 一种用于对患有中央视力障碍的人进行非侵入性视觉补偿的方法，系统和处理器可读介质。 可以获得并处理目标视野的数字图像以产生其经处理的图像，其中通常将到达人的视网膜的受损部分的数字图像的中心区域被移动到目标视场的其他区域 。 经处理的图像可以呈现给人，使得中心区域现在被引导到人的视网膜的未受损的周边部分。

公开(公告)号：US20150154669A1

公开(公告)日：2015-06-04

申请号：US14095159

申请日：2013-12-03

Applicant: Xerox Corporation

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

IPC: G06Q30/02 ,  G06Q10/02

CPC classification number: G06Q30/0284 ,  G06Q10/02 ,  G07B15/02

Abstract: A time based parking management method, system and processor-readable media. A video-based parking occupancy detection unit can operate in association with an image-assisted parking kiosk to provide an automatic parking-time monitoring element. An image with respect to a vehicle parked onsite (e.g., parking lot, street side parking, etc.) can be captured via an image-capturing unit associated with the video-based parking occupancy detection unit and/or the image-assisted parking kiosk. The vehicle can be identified based on input provided to a GUI associated with the parking kiosk with said image displayed to initiate a parking session. A parking fee can be calculated based on the actual time parked and payment can be made by at least one payment mode after said parking session terminates.

Abstract translation: 一种基于时间的停车管理方法，系统和处理器可读介质。 基于视频的停车占用检测单元可以与图像辅助停车亭相关联地操作，以提供自动驻车时间监视元件。 可以通过与基于视频的停车占有率检测单元相关联的图像捕获单元和/或图像辅助停车亭来捕获关于停放在现场的车辆（例如，停车场，街道停车场等）的图像 。 可以基于提供给与停车亭相关联的GUI的输入来识别车辆，其中显示所述图像以启动停车会话。 停车费可以根据实际暂停时间计算，并且可以在所述停车会话终止之后至少一个支付模式进行支付。

公开(公告)号：US20140313347A1

公开(公告)日：2014-10-23

申请号：US13868267

申请日：2013-04-23

Applicant: XEROX CORPORATION

Inventor： Wencheng Wu ,  Edul N. Dalal ,  Raja Bala

IPC: H04N17/00

CPC classification number: H04N17/002 ,  G06T7/80 ,  G06T2207/10016 ,  G06T2207/20076 ,  G06T2207/30232 ,  G06T2207/30236

Abstract: Methods and systems are disclosed for updating camera geometric calibration utilizing scene analysis. Geometric calibration parameters can be derived with respect to one or more cameras and selected reference points of interest identified from a scene acquired by one or more of such cameras. The camera geometric calibration parameters can be applied to image coordinates of the selected reference points of interest to provide real-world coordinates at a time of initial calibration of the camera(s). A subset of a video stream from the camera(s) can then be analyzed to identify features of a current scene captured by the camera(s) that match the selected reference points of interest and provide a current update of the camera geometric calibration parameters with respect to the current scene.

Abstract translation: 公开了利用场景分析更新摄像机几何校准的方法和系统。 可以相对于从一个或多个这样的相机获取的场景中识别的一个或多个摄像机和所选择的感兴趣的参考点导出几何校准参数。 相机几何校准参数可以应用于所选择的参考点的图像坐标，以在相机的初始校准时提供真实世界坐标。 然后可以分析来自相机的视频流的子集，以识别由相机捕获的当前场景的特征，所述相机与所选择的感兴趣的参考点匹配，并且提供相机几何校准参数的当前更新， 尊重当前场景。