公开(公告)号：US07584892B2

公开(公告)日：2009-09-08

申请号：US11711906

申请日：2007-02-27

Applicant: C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian

Inventor： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian

IPC: G06K7/10

CPC classification number: 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

Abstract: A digital image capturing and processing system comprising a plurality of coplanar illumination and imaging subsystem 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 coplanar illumination and imaging subsystem includes a local object motion detection subsystem for detecting the motion of objects moving through the 3D imaging volume, and a local control subsystem for controlling the state of operations within each coplanar illumination and imaging station during system operation. Each coplanar illumination and imaging subsystem has an object detection state and a code symbol reading state of operation, and includes one or more 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) that 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. When a local object motion detection subsystem automatically detects the motion of an object passing through at least a portion of the 3D imaging volume, a global control subsystem cooperates with the local control subsystems to manage the state of operation of each coplanar illumination and imaging subsystem, e.g. by driving one or more of coplanar illumination and imaging subsystems into the code symbol reading state of operation.

公开(公告)号：US07578442B2

公开(公告)日：2009-08-25

申请号：US11729659

申请日：2007-03-29

Applicant: C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Mark Schmidt ,  Nicola Ciarlante

Inventor： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Mark Schmidt ,  Nicola Ciarlante

IPC: G06K7/10

CPC classification number: 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

Abstract: A method of and system for identifying a consumer product in a retail store environment when a bar code symbol on a product is not readable or has been removed from the product's packaging. The system comprises a database system, and a digital image capturing and processing system installed in the retail environment and in data communication with the database system. The digital image capturing and processing system is capable of capturing one or more digital images for each consumer product sold in the retail store environment, and storing the digital images in the database subsystem, along with product identifying information for each consumer product. When the imaged bar code symbol happens to be unreadable, or when the bar code symbol label happens to have fallen off or have been removed from the packaging, then one or more digital images of the consumer product are compared with digital images stored in the database subsystem to identify the consumer product graphically represented in the digital images.

Abstract translation: 当产品上的条形码符号不可读或从产品的包装中移除时，用于在零售商店环境中识别消费品的方法和系统。 该系统包括数据库系统和安装在零售环境中的数字图像捕获和处理系统以及与数据库系统的数据通信。 数字图像捕获和处理系统能够针对在零售店环境中销售的每个消费产品捕获一个或多个数字图像，并将数字图像与每个消费产品的产品识别信息一起存储在数据库子系统中。 当成像的条形码符号不可读时，或者当条形码符号标签碰巧掉落或已经从包装中移除时，将消费品的一个或多个数字图像与存储在数据库中的数字图像进行比较 子系统来识别数字图像中图形表示的消费者产品。

公开(公告)号：US07571858B2

公开(公告)日：2009-08-11

申请号：US11978535

申请日：2007-10-29

Applicant: 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

Inventor： 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: G06K7/10

CPC classification number: 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

Abstract: A POS-based digital image capturing and processing system for illuminating objects using automatic object detection and spectral-mixing illumination technique. The system comprises a coplanar illumination and imaging station for projecting at least one coplanar illumination and imaging plane into an imaging volume during object illumination and imaging operations. The coplanar illumination and imaging station includes an illumination subsystem for producing a first field of visible illumination from an array of visible VLDs, and producing a second field of invisible illumination from an array of infrared (IR) laser diodes (IR-LDs). Wherein the first and second fields of illumination spatially overlap and intermix with each other and are substantially coplanar with the FOV of the linear image sensing array. An automatic object detection subsystem automatically detects an object moving through the imaging volume, while an illumination control subsystem controls the relative power ratio (VIS/IR) of visible illumination and invisible illumination during system operation so as to minimize the amount of visible illumination energy required to capture sufficiently high-contrast images of said objects and successfully process the same.

Abstract translation: 一种基于POS的数字图像捕获和处理系统，用于使用自动物体检测和光谱混合照明技术照明物体。 该系统包括共面照明和成像站，用于在对象照明和成像操作期间将至少一个共面照明和成像平面投射到成像体积中。 共面照明和成像站包括照明子系统，用于从可见VLD阵列产生可见光的第一场，并从红外（IR）激光二极管（IR-LD）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，并且与线性图像感测阵列的FOV基本共面。 自动物体检测子系统自动检测通过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光照和不可见照明的相对功率比（VIS / IR），以便最小化所需可见光能量的量 以捕获所述对象的足够高对比度的图像并且成功地处理它们。

公开(公告)号：US07559475B2

公开(公告)日：2009-07-14

申请号：US11699746

申请日：2007-01-30

Applicant: Anatoly Kotlarsky ,  Ka Man Au ,  Michael Veksland ,  Xiaoxun Zhu ,  Mark Meagher ,  Timothy Good ,  Richard Hou ,  Daniel Hu

Inventor： Anatoly Kotlarsky ,  Ka Man Au ,  Michael Veksland ,  Xiaoxun Zhu ,  Mark Meagher ,  Timothy Good ,  Richard Hou ,  Daniel Hu

IPC: G06K7/10

CPC classification number: G06K7/10722 ,  G06K7/10683 ,  G06K7/10712 ,  G06K7/10732 ,  G06K7/10801 ,  G06K7/10831 ,  G06K7/10851

Abstract: An automatic digital-imaging based code symbol reading system supporting a presentation mode of system operation, automatic object direction detection and illumination control, and video image capture and processing techniques. By virtue of the present invention, the automatic digital-imaging based code symbol reading system ensures the reliable reading of code symbols graphically represented in digital images, in high-throughput point-of-sale and other environments.

Abstract translation: 一种支持系统操作，自动对象方向检测和照明控制的呈现模式以及视频图像捕获和处理技术的基于自动数字成像的代码符号读取系统。 凭借本发明，基于自动数字成像的代码符号读取系统确保在数字图像中以高通量销售点和其他环境中图形表示的代码符号的可靠读取。

公开(公告)号：US07540425B2

公开(公告)日：2009-06-02

申请号：US11700543

申请日：2007-01-31

Applicant: Anatoly Kotlarsky ,  Ka Man Au ,  Michael Veksland ,  Xiaoxun Zhu ,  Mark Meagher ,  Timothy Good ,  Richard Hou ,  Daniel Hu

Inventor： Anatoly Kotlarsky ,  Ka Man Au ,  Michael Veksland ,  Xiaoxun Zhu ,  Mark Meagher ,  Timothy Good ,  Richard Hou ,  Daniel Hu

IPC: G06K9/22

CPC classification number: G06K7/10722 ,  G06K7/10683 ,  G06K7/10712 ,  G06K7/10732 ,  G06K7/10801 ,  G06K7/10831 ,  G06K7/10851

Abstract: A digital image capture and processing system employing automated real-time analysis of digital image exposure quality to automatically reconfigure system control parameters, and dynamically control illumination and imaging operations within the digital image capture and processing system.

Abstract translation: 数字图像采集和处理系统采用数字图像曝光质量的自动实时分析，自动重新配置系统控制参数，并动态控制数字图像捕获和处理系统内的照明和成像操作。

公开(公告)号：US07527204B2

公开(公告)日：2009-05-05

申请号：US11711871

申请日：2007-02-27

Applicant: C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian

Inventor： C. Harry Knowles ,  Xiaoxun Zhu ,  Timothy Good ,  Tao Xian

IPC: G06K7/10

CPC classification number: 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

Abstract: An omni-directional 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. Each coplanar illumination and imaging station includes a linear image detection array, a linear illumination array, and an object motion and velocity detection subsystem for automatically detecting the motion and velocity of an object that passes through at least a portion of one coplanar linear illumination and imaging plane, and automatically adjusting one or more parameters relating to the exposure and/or illumination control within the coplanar illumination and imaging station. By virtue of the present invention, it is possible to capture and process high quality digital images of objects passed through 3D imaging volumes, at point-of-sale (POS) retail stations and like environments.

Abstract translation: 一种全方向数字图像捕获和处理系统，包括多个共面照明和成像站，用于产生在3D成像体积内相交的多个共面线性照明和成像平面。 每个共面照明和成像站包括线性图像检测阵列，线性照明阵列和用于自动检测通过至少一部分共面线性照明和成像的物体的运动和速度的物体运动和速度检测子系统 并且自动调整与共面照明和成像站内的曝光和/或照明控制相关的一个或多个参数。 凭借本发明，可以捕捉并处理在销售点（POS）零售站和类似环境中通过3D成像体积的物体的高质量数字图像。

公开(公告)号：US07516898B2

公开(公告)日：2009-04-14

申请号：US11711907

申请日：2007-02-27

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

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

IPC: G06K7/10

CPC classification number: 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

Abstract: 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. Each station also employs a local control subsystem for controlling at least one illumination parameter associated with the production of the PLIB, in response to the motion and velocity of objects detected within the 3D imaging volume during system operation. By virtue of the present invention, it is possible to optimally illuminate objects based on the velocity at which such objects pass through the 3D imaging volume, at point-of-sale (POS) stations and like retail environments. Such illumination control ensures the capture of high quality digital images of objects, resulting in improved image processing.

Abstract translation: 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， 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。 响应于在系统操作期间在3D成像体积内检测到的物体的运动和速度，每个站还采用本地控制子系统来控制与生产PLIB相关联的至少一个照明参数。 凭借本发明，可以基于这些物体通过3D成像体积，在销售点（POS）站等零售环境的速度来最佳地照亮物体。 这种照明控制确保捕获物体的高质量数字图像，从而改善图像处理。

公开(公告)号：US20080185439A1

公开(公告)日：2008-08-07

申请号：US11978943

申请日：2007-10-30

Applicant: 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

Inventor： 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: G06K7/10

CPC classification number: 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

Abstract: A digital illumination and imaging system employing one or more planar laser illumination modules (PLIMs) each including: (i) a laser illumination source driven preferably by high frequency modulated (HFM) diode current drive circuitry; (ii) a beam collimating optics disposed beyond the laser source; (ii) an optical beam multiplexer (OMUX) device disposed beyond the collimating optics; and (iv) a planarizing-type illumination lens array disposed beyond the OMUX device, and arranged for generating a plurality of substantially planar coherence-reduced laser illumination beams (PLIBs) that form a composite substantially planar laser illumination beam (PLIB) having substantially reduced spatial/temporal coherence. A digital image detection array for detecting digital images of an object illuminated by the composite substantially planar laser illumination beam. By virtue of the present invention, the power of speckle pattern noise, observed in a digital image of an object detected at the digital image detection array, is substantially reduced when the digital image is formed using the substantially planar laser illumination beam.

Abstract translation: 一种使用一个或多个平面激光照射模块（PLIM）的数字照明和成像系统，每个平面激光照射模块包括：（i）优选地由高频调制（HFM）二极管电流驱动电路驱动的激光照明源; （ii）设置在激光源之外的光束准直光学器件; （ii）设置在准直光学器件之外的光束多路复用器（OMUX）器件; 并且（iv）平面化型照明透镜阵列，其设置在所述OMUX器件之外，并且被布置成产生形成基本上平坦的复合激光照明光束（PLIB）的多个基本上平面的相干相干激光照射光束（PLIB） 空间/时间一致性。 一种数字图像检测阵列，用于检测被复合的基本平面的激光照射光束照射的物体的数字图像。 根据本发明，当使用基本上平面的激光照射光束形成数字图像时，在数字图像检测阵列检测到的物体的数字图像中观察到的散斑图案噪声的功率大大降低。

公开(公告)号：US20080121720A1

公开(公告)日：2008-05-29

申请号：US11978951

申请日：2007-10-30

Applicant: 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

Inventor： 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: G06K7/10

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US20080110994A1

公开(公告)日：2008-05-15

申请号：US11977413

申请日：2007-10-24

Applicant: C. 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

Inventor： C. 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: G06K7/10

CPC classification number: 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

Abstract: 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 provides, 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 and are 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 digital images of said 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. 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.

Abstract translation: 使用自适应控制的光谱照射能量的混合来照亮对象的方法，以在足够高的图像对比度和质量的POS环境下形成和检测物体的数字图像。 该方法包括在POS环境中提供具有与成像窗口相关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领域在空间上彼此重叠和混合，并且与FOV基本上共同延伸。 在对象照明和成像操作期间，可视照明和不可见照明这些场的相对功率比（VIS / IR）被控制，因为形成并检测，捕获和缓冲所述被照明物体的一个或多个数字图像，并最终被处理 以读取数字图像中图形表示的一个或多个1D和/或2D代码符号。 在对象照明和成像操作操作期间，自适应地控制相对功率比（VIS / IR），以在POS环境下形成和检测数字图像，具有足够高的图像对比度和质量。