公开(公告)号：US07793841B2

公开(公告)日：2010-09-14

申请号：US11980084

申请日：2007-10-30

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A laser illumination beam generation system including a laser diode (LD) for producing a laser beam in response to a diode current supplied thereto, wherein the laser beam has a central characteristic wavelength. Diode current drive circuitry generates the diode current and supplies the same to the VLD. A high frequency modulation (HFM) circuitry modulates the diode current supplied to the laser diode, so as to produce a spectral side-band components about the central characteristic wavelength, and thereby reduces the coherence of the laser illumination beam as well as its coherence length. An optical multiplexing (OMUX) device receives the laser beam as an input beam and generates multiple laser beams therefrom and recombines the multiple laser beams so as to produce a composite output laser illumination beam having reduce coherence.

摘要翻译： 一种激光照射光束产生系统，包括：激光二极管（LD），用于响应于提供给其的二极管电流产生激光束，其中所述激光束具有中心特征波长。 二极管电流驱动电路产生二极管电流并将其提供给VLD。 高频调制（HFM）电路调制提供给激光二极管的二极管电流，以产生关于中心特征波长的频谱边带分量，从而降低激光照射光束的相干性及其相干长度 。 光复用（OMUX）器件接收激光束作为输入光束，并从中产生多个激光束，并重新组合多个激光束，以产生具有减小相干性的复合输出激光照明光束。

公开(公告)号：US07775436B2

公开(公告)日：2010-08-17

申请号：US11978951

申请日：2007-10-30

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A method of driving a plurality of visible and invisible laser diodes so as to produce an illumination beam having a dynamically managed ratio of visible to invisible (IR) spectral energy/power during object illumination and imaging operations. The method involves supplying a plurality of visible laser and invisible laser diodes with a predetermined/default values of diode drive currents so as to illuminate the object with a spectral mixture of illumination during object illumination and imaging operations. One or more digital images of the illuminated object are captured and the image contrast quality thereof is measured, in real-time, so as to generate feedback or control data. This feedback or control data is used to dynamically generate the necessary values for the adjusted diode drive currents that are used to drive the visible and invisible laser diodes and produce an illumination beam having a dynamically managed ratio of visible to invisible (IR) spectral energy/power required to produce images of sufficient image contrast to ensure satisfactory image processing, while minimizing visual brightness to humans, at a POS station during object illumination and imaging operations.

摘要翻译： 一种驱动多个可见和不可见的激光二极管的方法，以便在物体照明和成像操作期间产生具有动态管理的可见到（IR）光谱能量/功率的比率的照明光束。 该方法包括以预定/默认值的二极管驱动电流提供多个可见激光器和不可见激光二极管，以便在对象照明和成像操作期间用照明的光谱混合来照亮物体。 捕获被照明物体的一个或多个数字图像并且实时地测量其图像对比度质量，以便产生反馈或控制数据。 该反馈或控制数据用于动态地产生用于驱动可见和不可见的激光二极管的经调整的二极管驱动电流的必要值，并且产生具有动态管理的可见到不可见（IR）光谱能量/ 产生足够图像对比度的图像所需的功率，以确保令人满意的图像处理，同时在对象照明和成像操作期间在POS站使人的视觉亮度最小化。

公开(公告)号：US20090101718A1

公开(公告)日：2009-04-23

申请号：US11977422

申请日：2007-10-24

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A digital image capturing and processing system for illuminating objects using automatic object detection and spectral-mixing illumination technique. The system comprises an area-type illumination and imaging module for projecting a coextensive area-type illumination and imaging field (i.e. zone) into a 3D imaging volume during object illumination and imaging operations. The area-type illumination and imaging module includes a spectral-mixing based illumination subsystem for producing a first field of visible illumination from an array of visible LEDs, and producing a second field of invisible illumination from an array of infrared (IR) LEDs, wherein the first and second fields of illumination spatially overlap and intermix with each other and produce a composite illumination field that is at least substantially coextensive with the FOV of the image sensing array. An automatic object detection subsystem automatically detects an object moving through the 3D imaging volume, while an illumination control subsystem controls the relative power ratio (VIS/IR) of visible illumination and invisible illumination during system operations so as to achieve sufficient image contrast in captured digital images to ensure satisfactory image processing.

摘要翻译： 一种用于使用自动物体检测和光谱混合照明技术照亮物体的数字图像捕获和处理系统。 该系统包括区域型照明和成像模块，用于在对象照明和成像操作期间将共同面积型照明和成像场（即区域）投射到3D成像体积中。 面积型照明和成像模块包括基于光谱混合的照明子系统，用于从可见LED阵列产生可见光照明的第一场，并从红外（IR）LED阵列产生不可见照明的第二场，其中 第一和第二照明场在空间上彼此重叠和混合，并产生与图像感测阵列的FOV至少基本上共同延伸的复合照明场。 自动物体检测子系统自动检测通过3D成像体积移动的物体，而照明控制子系统在系统操作期间控制可见照明和不可见照明的相对功率比（VIS / IR），以便在捕获的数字中实现足够的图像对比度 图像确保满意的图像处理。

公开(公告)号：US20080283611A1

公开(公告)日：2008-11-20

申请号：US11880087

申请日：2007-07-19

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： Digital image capture and processing systems and methods for generating and projecting coplanar illumination and imaging planes and/or coextensive area-type illumination and imaging zones, through one or more imaging windows, and into a 3D imaging volume in a retail POS environments, while employing automatic object motion and/or velocity detection, real-time image analysis and other techniques to capture and processing high-quality digital images of objects passing through the 3D imaging volume, and intelligently controlling and/or managing the use of visible and invisible forms of illumination, during object illumination and imaging operations, that might otherwise annoy or disturb human operators and/or customers working and/or shopping in such retail environments.

摘要翻译： 数字图像捕获和处理系统和方法，用于通过一个或多个成像窗口并在零售POS环境中生成和投射共面照明和成像平面和/或共同区域型照明和成像区域，同时使用零售POS环境中的3D成像体积 自动对象运动和/或速度检测，实时图像分析和其他技术来捕获和处理通过3D成像体的物体的高质量数字图像，以及智能地控制和/或管理可见和不可见形式的使用 在对象照明和成像操作期间的照明，否则可能会扰乱或扰乱在这种零售环境中工作和/或购物的操作者和/或客户。

公开(公告)号：US20080169348A1

公开(公告)日：2008-07-17

申请号：US11978525

申请日：2007-10-29

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A method of illuminating objects using adaptively controlled mixing of spectral illumination energy to form and detect digital images of objects at POS environments with sufficiently high image contrast and quality. The method comprises providing, at a POS environment, a digital image capture and processing system having a system housing with an imaging window, and a coplanar illumination and imaging station disposed within said system housing, for projecting a coplanar illumination and imaging plane through the imaging window into an imaging volume during object illumination and imaging operations. As the object is moved through the imaging volume, its motion is automatically detected, and signals indicative of said detected object are generated. In response to the generated signals, a first field of visible illumination is produced from an array of visible laser diodes (VLDs), simultaneously with a second field of invisible illumination from a array of infrared (IR) laser diodes (LDs). These first and second fields of illumination spatially overlap and intermix with each other and produce a composite planar illumination beam that is substantially coextensive with the FOV. During object illumination and imaging operations, the relative power ratio (VIS/IR) of these fields of visible illumination and invisible illumination are controlled as one or more linear digital images of the illuminated object are formed and detected, captured and buffered, and ultimately processed so as to read one or more 1D and/or 2D code symbols graphically represented in the digital images. In an illustrative embodiment, during object illumination and imaging operations operation, the relative power ratio (VIS/IR) is adaptively controlled to form and detect digital images of objects at POS environments with sufficiently high image contrast and quality.

公开(公告)号：US20080149726A1

公开(公告)日：2008-06-26

申请号：US11980319

申请日：2007-10-30

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John A. Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A multi-stage laser beam despeckling device including a first laser beam despeckling module for optically multiplexing an input laser beam into a temporal/spatial coherence-reduced output laser beam; and a second laser beam despeckling module, optically coupled to the first laser beam despeckling module, for receiving the temporal/spatial coherence-reduced as an input laser beam to the second despeckling module and producing a further temporal/spatial coherence-reduced output laser beam.

摘要翻译： 一种多级激光束解散装置，包括用于将输入激光束光学地多路复用到时间/空间相干减少的输出激光束中的第一激光束去散射模块; 以及光学耦合到第一激光束去散射模块的第二激光束去散射模块，用于接收作为输入激光束的时间/空间相干减少到第二去散射模块，并产生进一步的时间/空间相干减小的输出激光束 。

公开(公告)号：US07661597B2

公开(公告)日：2010-02-16

申请号：US11978521

申请日：2007-10-29

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A coplanar laser illumination and imaging subsystem deployable in an image capturing and processing system, and including an image formation and detection (IFD) subsystem having an image sensing array and optics providing a field of view (FOV) on the image sensing array, and forming an image of an object within the FOV and detecting said image on the image sensing array and producing a digital image thereof. The system includes a spectral-mixing based illumination subsystem having an array of VLDs for producing a visible illumination beam, and an array of infrared (IR) laser diodes (LDs) for producing an invisible illumination beam. The visible and invisible illumination beams spatially overlaps and spatially/temporally intermixes with each other to produce a composite spectrally-mixed illumination beam having a relative power ratio of visible illumination to invisible illumination (VIS/IR), and is substantially coplanar with the FOV of said image sensing array. A laser despeckling mechanism is provided for reducing the coherence of the composite spectrally-mixed illumination beam, and/or its components, so that the digital images produced by the IFD subsystem having substantially reduced levels of speckle-pattern noise when the laser despeckling mechanism is operational.

摘要翻译： 一种共面的激光照明和成像子系统，其可部署在图像捕获和处理系统中，并且包括具有图像感测阵列的图像形成和检测（IFD）子系统和在图像感测阵列上提供视野（FOV）的光学元件，以及形成 FOV内的物体的图像，并且检测图像感测阵列上的图像并产生其数字图像。 该系统包括基于光谱混合的照明子系统，其具有用于产生可见照明光束的VLD阵列，以及用于产生不可见照明光束的红外（IR）激光二极管阵列。 可视和不可见的照明光束在空间上重叠并在空间/时间上彼此混合，以产生具有可见光照到不可见照明（VIS / IR）的相对功率比的复合光谱混合照明光束，并且基本上与 所述图像感测阵列。 提供了一种用于降低复合光谱混合照明光束和/或其分量的相干性的激光去斑机构，使得当激光解散机制是基本上降低的斑纹图案噪声水平时，IFD子系统产生的数字图像是 操作。

公开(公告)号：US07614560B2

公开(公告)日：2009-11-10

申请号：US11977430

申请日：2007-10-24

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Anatoly Kotlarsky ,  Michael Veksland ,  Mark Hernandez ,  John Gardner ,  Steven Essinger ,  Patrick Giordano ,  Sean Kearney ,  Mark Schmidt ,  John Furlong ,  Nicholas Ciarlante ,  Yong Liu ,  Jie Ren ,  Xi Tao ,  JiBin Liu ,  Ming Zhuo ,  Duane Ellis

IPC分类号： G06K7/10

CPC分类号： A47F9/046 ,  G02B27/48 ,  G06K7/10544 ,  G06K7/10564 ,  G06K7/10574 ,  G06K7/10613 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10712 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10782 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10861 ,  G06K9/2027 ,  G06K2017/0067 ,  G06K2207/1012 ,  G06Q20/208 ,  G06Q30/06 ,  G07G1/0036 ,  G07G1/0045 ,  G07G3/00 ,  G07G3/006

摘要： A method of illuminating objects using adaptively controlled mixing of spectral illumination energy to form and detect digital images of objects at a POS. The method comprises providing, at a POS environment, a digital image capture and processing system having a system housing with an imaging window, and an area-type illumination and imaging station disposed within said system housing, for projecting a coextensive area-type illumination and imaging field (i.e. zone) through said imaging window into a 3D imaging volume during object illumination and imaging operations. As the object is moved through the 3D imaging volume, its motion is automatically detected, and signals indicative of said detected object motion are generated. In response to the generated signals, a first field of visible illumination is produced from an array of visible LEDs, simultaneously with a second field of invisible illumination from a array of infrared (IR) LEDs. These first and second fields of illumination spatially overlap and intermix with each other to produce a composite wide-area illumination beam that is at least substantially coextensive with the FOV. During object illumination and imaging operations, the relative power ratio (VIS/IR) of these fields of visible illumination and invisible illumination is adaptively controlled as one or more digital images of the illuminated object are formed and detected, captured and buffered, and ultimately processed so as to read one or more 1D and/or 2D code symbols graphically represented in the digital images.

摘要翻译： 使用光谱照射能量的自适应控制混合来照亮对象的方法，以形成和检测在POS处的对象的数字图像。 该方法包括在POS环境中提供具有带有成像窗口的系统外壳的数字图像捕获和处理系统以及设置在所述系统壳体内的区域型照明和成像站，用于投射共同区域型照明和 在对象照明和成像操作期间通过所述成像窗口将成像场（即区域）转换为3D成像体积。 当物体移动通过3D成像体积时，其运动被自动检测，并且产生指示检测到的物体运动的信号。 响应于所产生的信号，从可见LED阵列产生可见照明的第一场，同时来自红外（IR）LED阵列的第二不可见照明场。 这些第一和第二照明场在空间上彼此重叠和混合，以产生与FOV至少基本上共同延伸的复合广域照明光束。 在对象照明和成像操作期间，由于形成和检测，捕获和缓冲被照明物体的一个或多个数字图像，因此可视照明和不可见照明场的相对功率比（VIS / IR）被自适应地控制，并被最终处理 以便读取在数字图像中图形表示的一个或多个1D和/或2D代码符号。

公开(公告)号：US07537165B2

公开(公告)日：2009-05-26

申请号：US11811652

申请日：2007-03-02

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Michael Veksland ,  Anatoly Kotlarsky ,  John Furlong ,  Mark Hernandez ,  Nicola Ciarlante ,  Mark Schmidt

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Michael Veksland ,  Anatoly Kotlarsky ,  John Furlong ,  Mark Hernandez ,  Nicola Ciarlante ,  Mark Schmidt

IPC分类号： G06K7/10

CPC分类号： G06K7/10712 ,  G06K7/10693 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10851 ,  G06K9/2027 ,  G06K2207/1012 ,  G06Q20/20 ,  G06Q20/202 ,  G06Q20/203 ,  G06Q20/208 ,  G06Q20/209 ,  G06Q30/06

摘要： An omni-directional digital image capturing and processing system for use in a POS environment, comprising a system housing having an imaging window, and a plurality of coplanar illumination and imaging stations, disposed in the system housing, for generating and projecting a complex of coplanar illumination and imaging planes through said imaging window. At least one area-type illumination and imaging station is also disposed in the system housing, for generating and projecting an area-type illumination and imaging zone through the imaging window, which intersects with the complex of coplanar illumination and imaging planes within a 3D imaging volume definable relative to the imaging window, for omni-directional digital imaging of objects passing through the 3D imaging volume. Digital linear images of the object are generated when the object intersects with coplanar illumination and imaging planes, and digital area-type images of the object are generated when the object intersects with the area-type illumination and imaging zone, within the 3D imaging volume during system operation. The system also includes an object motion detection subsystem for automatically detecting the motion of objects passing through the 3D imaging volume, and generating motion data representative of the detected object motion within the 3D imaging volume.

摘要翻译： 一种在POS环境中使用的全方位数字图像捕获和处理系统，包括具有成像窗口的系统壳体和设置在系统壳体中的多个共面照明和成像站，用于产生和投影共面的复合体 照明和成像平面通过所述成像窗口。 至少一个区域型照明和成像站也设置在系统壳体中，用于通过成像窗口产生和投影区域型照明和成像区域，该成像窗口与3D成像中的共面照明和成像平面的复合体相交 相对于成像窗口可定量的体积，用于通过3D成像体的物体的全方位数字成像。 当物体与共面照明和成像平面相交时，产生物体的数字线性图像，并且当物体在区域型照明和成像区域内相交时，在3D成像体积内产生物体的数字区域型图像 系统运行。 该系统还包括物体运动检测子系统，用于自动检测通过3D成像体的物体的运动，以及生成代表在3D成像体内检测到的物体运动的运动数据。

公开(公告)号：US07533820B2

公开(公告)日：2009-05-19

申请号：US11711858

申请日：2007-02-27

申请人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Michael Veksland

发明人： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian ,  Michael Veksland

IPC分类号： G06K7/10

CPC分类号： G06K7/10712 ,  G06K7/10693 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10851 ,  G06K9/2027 ,  G06K2207/1012 ,  G06Q20/20 ,  G06Q20/202 ,  G06Q20/203 ,  G06Q20/208 ,  G06Q20/209 ,  G06Q30/06

摘要： A digital image capturing and processing system comprising a plurality of coplanar illumination and imaging stations for producing a plurality of coplanar linear illumination and imaging planes which intersect within a 3D imaging volume defined relative to an imaging window. Each station includes an array of planar illumination modules (PLIMs) for producing at least one substantially planar illumination beam (PLIB), and a linear image detection array having a field of view (FOV) on the linear image detection array and extending in substantially the same plane as the PLIB, to provide a coplanar illumination and imaging plane (PLIB/FOV). The PLIB/FOV is projected through the 3D imaging volume, for capturing linear (1D) digital images of an object passing therethrough, for subsequent processing and recognition of information graphically represented in the linear digital images. The system includes an automatic object motion detection subsystem for automatically determining when and where an object is being moved through the 3D imaging volume, and a control subsystem for selectively activating illumination sources in only those PLIMs in particular coplanar illumination and imaging stations when an object is being moved within the FOV thereof. By virtue of the present invention, it is possible to minimize the illumination of human beings who might be present along the lines of projected coplanar illumination and imaging planes during the operation of system, at point-of-sale (POS) stations and like retail environments.

摘要翻译： 一种数字图像捕获和处理系统，包括多个共面照明和成像站，用于产生多个共面线性照明和成像平面，所述共面线性照明和成像平面相对于相对于成像窗口定义的3D成像体积相交。 每个站包括用于产生至少一个基本上平面的照明光束（PLIB）的平面照明模块（PLIM）阵列和在线性图像检测阵列上具有视场（FOV）的线性图像检测阵列，并基本上延伸 与PLIB相同的平面，提供共面照明和成像平面（PLIB / FOV）。 PLIB / FOV通过3D成像体积投影，用于捕获通过其中的物体的线性（1D）数字图像，以便后续处理和识别在线性数字图像中图形表示的信息。 该系统包括自动对象运动检测子系统，用于自动确定物体何时何地被移动通过3D成像体积;以及控制子系统，用于当对象是对象时，仅选择性地激活那些特定共面照明和成像站中的照明源的控制子系统 在其FOV内被移动。 凭借本发明，可以在系统的操作，销售点（POS）站和类似的零售点期间将可能沿着投影的共面照明和成像平面线的人的照明最小化 环境。