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    Planar laser illumination and imaging (PLIIM) based camera system for producing high-resolution 3-D images of moving 3-D objects
    6.
    发明授权
    Planar laser illumination and imaging (PLIIM) based camera system for producing high-resolution 3-D images of moving 3-D objects 失效

    公开(公告)号：US06988660B2

    公开(公告)日：2006-01-24

    申请号：US10084764

    申请日：2002-02-26

    Applicant: Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Pirooz Vatan

    Inventor： Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Pirooz Vatan

    IPC: G06K7/10 ,  G06K7/14

    CPC classification number: G06K7/10 ,  G06K9/26 ,  G06K9/325 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/4025

    Abstract: A planar laser illumination and imaging (PLIIM) based camera system for producing high-resolution 3-D images of moving 3-D objects having arbitrary surface geometry. The PLIIM-based camera system comprises a system housing of unitary construction, a LADAR-based object profiling subsystem, a PLIIM-based linear imaging subsystem, and an image processing subsystem disposed therein. The system housing has first, second, third and fourth light transmission apertures linearly aligned with and optically isolated from each other, and the third light transmission aperture is disposed between the first and second light transmission aperture. The LADAR-based object profiling subsystem projects an amplitude modulated (AM) laser beam through the fourth light transmission aperture, and scans the laser beam across an 3-D object surface of arbitrary surface geometry moving past the fourth light transmission aperture. The return AM laser beam is processed in order to measure the surface profile of the moving 3-D object surface and produce a series of linear 3-D surface profile maps thereof. Each linear 3-D surface profile map comprises a set of 3-D coordinates specifying the location of sampled points along the moving 3-D object surface. The PLIIM-based linear imaging subsystem produces a series of linear high-resolution 2-D images of the moving 3-D object surface. Each linear high-resolution 3-D image comprises a set of pixel intensity values, and each pixel intensity value is assigned a set of two-dimensional coordinates specifying the location of the pixel in the linear high-resolution 2-D image. The image processing subsystem automatically processes the linear 3-D surface profile maps and the high-resolution 2-D linear images captured by the subsystems in order to construct high-resolution 3-D images of the 3-D object surface. By virtue of the present invention, it is now possible to produce high-resolution 3-D images of moving 3-D object surfaces using linear imaging and 3-D profiling techniques.

    Automatic vehicle identification (AVI) system employing planar laser illumination and imaging (PLIIM) based subsystems
    8.
    发明授权
    Automatic vehicle identification (AVI) system employing planar laser illumination and imaging (PLIIM) based subsystems 失效
    采用平面激光照明和成像（PLIIM）的子系统的自动车辆识别（AVI）系统

    公开(公告)号：US06959869B2

    公开(公告)日：2005-11-01

    申请号：US10161091

    申请日：2002-05-31

    Applicant: Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Michael D. Schnee

    Inventor： Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Michael D. Schnee

    IPC: G02B6/42 ,  G06C11/08 ,  G06F17/00 ,  G06K7/10 ,  G06K7/14 ,  G06K9/22 ,  G07B15/06 ,  H01S3/00 ,  H01S3/08 ,  H01S5/00 ,  H01S5/022 ,  H01S5/40

    CPC classification number: G06K9/26 ,  G02B27/48 ,  G06K7/10594 ,  G06K9/325 ,  G07B15/06 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/4025

    Abstract: An automatic vehicle identification (AVI) system for installation along a roadway, comprising one or more a planar laser illumination and imaging (PLIIM) based linear imaging subsystems mounted above the roadway in a spaced apart manner. The PLIIM based subsystems are arranged for capturing digital linear images of both the front and rear license plates mounted on each moving vehicle travelling under the PLIIM based linear imaging subsystem, and generating digital image data representative of each captured digital linear image. An image processing subsystem is provided for receiving and processing the digital image data generated by the PLIIM-based imaging systems, so as to automatically read the alphanumeric strings on the front and/or rear license plates of each the vehicle. These recognized strings are then compared against vehicle registration information stored in a database in order to identify each vehicle travelling under along the roadway. By virtual of the present invention, it is now possible to capture and buffer high-resolution linear images of the license plates on moving vehicles using planar laser illumination beams and coplanar fields of view, so that these linear images can be sequentially assembled to construct 2-D images for OCR processing so that such vehicles can be automatically identified, while avoiding the need for large and expensive high-intensity lighting equipment required by conventional digital cameras employing 2-D electronic image detectors.

    Abstract translation: 一种用于沿道路安装的自动车辆识别（AVI）系统，包括以间隔开的方式安装在道路上方的一个或多个基于平面激光照明和成像（PLIIM）的线性成像子系统。 基于PLIIM的子系统被布置用于捕获安装在基于PLIIM的线性成像子系统下的每个移动车辆上的前后车牌的数字线性图像，以及生成表示每个捕获的数字线性图像的数字图像数据。 提供图像处理子系统，用于接收和处理由基于PLIIM的成像系统产生的数字图像数据，以便自动读取每个车辆的前部和/或后部车牌上的字母数字串。 然后将这些识别的字符串与存储在数据库中的车辆登记信息进行比较，以便识别沿着道路行进的每辆车辆。 通过本发明，现在可以使用平面激光照明光束和共面视场来捕获并缓冲移动车辆上的车牌的高分辨率线性图像，使得这些线性图像可以被顺序组装以构成2 -D图像，以便能够自动识别这种车辆，同时避免需要使用2-D电子图像检测器的常规数字照相机所需的大型和昂贵的高强度照明设备。

    INTERNET-BASED METHOD OF AND SYSTEM FOR REMOTELY MONITORING, CONFIGURING AND SERVICING PLANAR LASER ILLUMINATION AND IMAGING (PLIIM) BASED NETWORKS WITH NODES FOR SUPPORTING OBJECT IDENTIFICATION AND ATTRIBUTE INFORMATION ACQUISITION FUNCTIONS
    9.
    发明授权
    INTERNET-BASED METHOD OF AND SYSTEM FOR REMOTELY MONITORING, CONFIGURING AND SERVICING PLANAR LASER ILLUMINATION AND IMAGING (PLIIM) BASED NETWORKS WITH NODES FOR SUPPORTING OBJECT IDENTIFICATION AND ATTRIBUTE INFORMATION ACQUISITION FUNCTIONS 失效
    基于互联网的远程监控，配置和维护平面激光照明和成像（PLIIM）网络的方法和系统，支持对象识别和属性信息获取功能的节点

    公开(公告)号：US06957775B2

    公开(公告)日：2005-10-25

    申请号：US10135893

    申请日：2002-04-29

    Applicant: Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Barry E. Schwartz

    Inventor： Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Barry E. Schwartz

    IPC: G06K7/10 ,  G06Q10/00 ,  G06Q30/00

    CPC classification number: G06Q10/00 ,  G06K7/10722 ,  G06K7/10732 ,  G06Q30/00

    Abstract: An Internet-based method of and system for monitoring, configuring and servicing planar laser illumination and imaging (PLIIM) based network remotely situated from and using any Internet-enabled client computing subsystem functioning as the network management station (NMS). The PLIIM based network (i) has a plurality of nodes, (ii) is operably interconnected to the infrastructure of the Internet, (iii) has set of parameters related to network, system and/or subsystem characteristics of said PLIIM-based network, and (iv) is capable of performing a predefined set of object identification and attribute acquisition functions in a network environment. The method comprising using the NMS to remotely monitor the set of parameters related to network, system and/or subsystem characteristics of the PLIIM-based network. The NMS, its supporting client machine, and/or remote servers supporting servlets, analyze the monitored parameters so as to diagnose either actual or potential performance failures in the PLIIM-based network which might prevent the performance of one or more of the predefined set of object identification and attribute acquisition functions. By virtue of the present invention, it is now possible to remotely monitor, configure and service Internet-based PLIIM-based networks simply using any Internet-enabled browser, thereby keeping such networks up and running, with minimal down-time.

    Abstract translation: 一种基于互联网的方法和系统，用于监控，配置和维护基于平面激光照明和成像（PLIIM）的网络，远程位于使用任何启用网络的客户端计算子系统作为网络管理站（NMS）。 基于PLIIM的网络（i）具有多个节点，（ii）可操作地连接到因特网的基础设施，（iii）具有与所述基于PLIIM的网络的网络，系统和/或子系统特性相关的一组参数， 和（iv）能够在网络环境中执行预定义的一组对象识别和属性获取功能。 该方法包括使用NMS远程监视与基于PLIIM的网络的网络，系统和/或子系统特性相关的参数集合。 NMS，其支持的客户端机器和/或支持servlet的远程服务器分析所监视的参数，以便诊断基于PLIIM的网络中的实际或潜在性能故障，这可能会阻止一个或多个预定义的组 对象识别和属性获取功能。 凭借本发明，现在可以简单地使用任何启用了因特网的浏览器来远程监视，配置和服务基于互联网的基于PLIIM的网络，从而以最小的停机时间来保持这种网络的正常运行。

    PLANAR LASER ILLUMINATION AND IMAGING (PLIIM) BASED CAMERA SYSTEM FOR AUTOMATICALLY PRODUCING DIGITAL LINEAR IMAGES OF A MOVING OBJECT, CONTAINING PIXELS HAVING A SUBSTANTIALLY SQUARE ASPECT-RATIO INDEPENDENT OF THE MEASURED RANGE AND/OR A VELOCITY OF SAID MOVING OBJECT
    10.
    发明授权
    PLANAR LASER ILLUMINATION AND IMAGING (PLIIM) BASED CAMERA SYSTEM FOR AUTOMATICALLY PRODUCING DIGITAL LINEAR IMAGES OF A MOVING OBJECT, CONTAINING PIXELS HAVING A SUBSTANTIALLY SQUARE ASPECT-RATIO INDEPENDENT OF THE MEASURED RANGE AND/OR A VELOCITY OF SAID MOVING OBJECT 失效
    基于平面激光照明和成像（PLIIM）的相机系统，用于自动生成移动对象的数字线性图像，包含具有测量范围的独立平方根像素和/或移动对象的速度的像素

    公开(公告)号：US06953151B2

    公开(公告)日：2005-10-11

    申请号：US10135866

    申请日：2002-04-29

    Applicant: Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Michael D. Schnee ,  Ka Man Au ,  Allan Wirth ,  Sankar Ghosh

    Inventor： Constantine J. Tsikos ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Michael D. Schnee ,  Ka Man Au ,  Allan Wirth ,  Sankar Ghosh

    IPC: G02B6/42 ,  G02B27/48 ,  G06C11/08 ,  G06F17/00 ,  G06K7/10 ,  G06K7/14 ,  G06K9/22 ,  G07B15/06 ,  H01S3/00 ,  H01S3/08 ,  H01S5/00 ,  H01S5/022 ,  H01S5/40

    CPC classification number: G06K7/10 ,  G02B19/0014 ,  G02B19/0052 ,  G02B19/0085 ,  G02B19/009 ,  G02B19/0095 ,  G02B26/10 ,  G02B27/095 ,  G02B27/48 ,  G06K7/10594 ,  G06K7/10732 ,  G06K7/146 ,  G06K9/26 ,  G06K9/325 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/4025

    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system. Preferably, each planar laser illumination beam component is focused so that the minimum beam width thereof occurs at a point or plane which is the farthest or maximum object distance at which the system is designed to acquire images, thereby compensating for decreases in the power density of the incident planar laser illumination beam due to the fact that the width of the planar laser illumination beam increases in length for increasing object distances away from the imaging optics. By virtue of the present invention, it is now possible to use both VLDs and high-speed CCD-type image detectors in conveyor, hand-held and hold-under type scanning applications alike, enjoying the advantages and benefits that each such technology has to offer, while avoiding the shortcomings and drawbacks hitherto associated therewith.

    Abstract translation: 使用具有基本上平面的空间分布特性的平面激光照明光束照射物体的方法和系统，其延伸通过图像形成的视野（FOV）和在这种系统中使用的检测模块。 每个平面激光照明光束由包括多个平面激光照射模块（PLIM）的平面激光照射束阵列（PLIA）产生。 每个PLIM包括可见激光二极管（VLD，聚焦透镜和与其配置的圆柱形光学元件），由每个PLIM产生的各个平面激光照明光束分量被光学组合以产生具有基本上均匀功率密度的复合基本上平面的激光照明光束 优选地，每个平面激光照射光束分量被聚焦，使得其最小光束宽度发生在最远或最大物体距离的点或平面处，在该点或平面处， 系统被设计为获取图像，从而补偿入射的平面激光照明光束的功率密度的降低，这是由于平面激光照射光束的宽度在长度上增加以增加远离成像光学元件的物体距离 的本发明，现在可以使用两种VLD和高 在传送带，手持式和保持型扫描应用中，速度CCD型图像检测器同样享有每种这样的技术所提供的优点和好处，同时避免迄今为止的缺点和缺点。

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