公开(公告)号：US06995762B1

公开(公告)日：2006-02-07

申请号：US10243396

申请日：2002-09-13

申请人： Theo Pavlidis ,  Eugene Joseph ,  Duanfeng He ,  Edward Hatton ,  Kefei Lu

发明人： Theo Pavlidis ,  Eugene Joseph ,  Duanfeng He ,  Edward Hatton ,  Kefei Lu

IPC分类号： G06T15/00

CPC分类号： G06T17/00 ,  G06T7/50

摘要： The present invention facilitates solid object reconstruction from a two-dimensional image. If an object is of known and regular shape, information about the object can be extracted from at least one view by utilizing appropriate constraints and measuring a distance between a camera and the object and/or by estimating a scale factor between a camera image and a real world image. The same device can perform both the image capture and the distance measurement or the scaling factor estimation. The following processes can be performed for object identification: parameter estimation; image enhancement; detection of line segments; aggregation of short line segments into segments; detection of proximity clusters of segments; estimation of a convex hull of at least one cluster; derivation of an object outline from the convex hull; combination of the object outline, shape constraints, and distance value.

摘要翻译： 本发明有助于从二维图像进行实体重建。 如果对象是已知的和规则的形状，则可以通过利用适当的约束和测量相机与对象之间的距离和/或通过估计相机图像和对象之间的比例因子，从至少一个视图提取关于对象的信息 现实世界形象 相同的设备可以执行图像捕获和距离测量或缩放因子估计。 可以对对象识别进行以下处理：参数估计; 图像增强; 检测线段; 将短线段聚合成段; 检测段的近邻簇; 估计至少一个簇的凸包; 从凸包导出物体轮廓; 对象轮廓，形状约束和距离值的组合。

公开(公告)号：US07748631B2

公开(公告)日：2010-07-06

申请号：US10901515

申请日：2004-07-29

申请人： Mehul M. Patel ,  Duanfeng He ,  Howard Shepard ,  Eugene Joseph ,  Edward Barkan

发明人： Mehul M. Patel ,  Duanfeng He ,  Howard Shepard ,  Eugene Joseph ,  Edward Barkan

IPC分类号： G06K7/10 ,  G06K9/80 ,  G06K9/36 ,  G06K19/08

CPC分类号： G06K7/10732 ,  G06K7/10693 ,  G06K7/1096

摘要： A solid-state imager is mounted at a point-of-transaction workstation for capturing images of one- and two-dimensional indicia and is operated at high speed to resist image blurring due to relative movement between the target and the imager. Dedicated hardware assistance and computation resources are allocated to decode multiple, continuous and simultaneous video streams from multiple imagers at the workstation.

摘要翻译： 固态成像仪安装在交易点处，用于捕获一维和二维标记的图像，并且以高速操作以抵抗由于目标和成像器之间的相对移动而导致的图像模糊。 分配专用的硬件辅助和计算资源来解码来自工作站的多个成像器的多个，连续和同步的视频流。

公开(公告)号：US07543754B2

公开(公告)日：2009-06-09

申请号：US11855285

申请日：2007-09-14

申请人： Duanfeng He ,  Eugene Joseph

发明人： Duanfeng He ,  Eugene Joseph

IPC分类号： G06K7/10

CPC分类号： G06K7/10732 ,  G06K19/06009 ,  G06K19/063

摘要： Methods and apparatus for illuminating objects comprising asymmetrically illuminating an object using an illumination medium on one side of an optical module of an information capturing module, capturing an electronic representation of the object and decoding the electronic representation of said object. In alternate embodiments, the scanner successively illuminates the object from a plurality of different angles until the object and/or dataform is decoded. The illumination medium can be external to the information capturing module.

摘要翻译： 用于照明物体的方法和装置，包括使用信息捕获模块的光学模块的一侧上的照明介质来对物体照明，捕获对象的电子表示并解码所述对象的电子表示。 在替代实施例中，扫描器从多个不同的角度连续地照亮对象，直到对象和/或数据形式被解码。 照明介质可以在信息捕获模块的外部。

公开(公告)号：US20080142597A1

公开(公告)日：2008-06-19

申请号：US11612178

申请日：2006-12-18

申请人： Eugene Joseph ,  Duanfeng He

发明人： Eugene Joseph ,  Duanfeng He

IPC分类号： G06K7/10

CPC分类号： G06K7/10722 ,  G06K2207/1011

摘要： A barcode reader having a diffuser providing diffused light to a surface including a target barcode, the diffuser including an aiming screen portion, a camera capturing an image of the target barcode and an aiming mechanism projecting an aiming pattern on the surface, the aiming pattern being reflected by the surface, wherein, when a reflection of the aiming pattern creates an aiming image on the aiming screen, the barcode reader is oriented to read the target barcode.

摘要翻译： 一种条形码读取器，具有扩散器，其向包括目标条形码的表面提供漫射光，漫射器包括瞄准屏幕部分，拍摄目标条形码图像的相机和将瞄准图案投影在表面上的瞄准机构，瞄准图案是 所述表面反射，其中，当所述瞄准图案的反射在所述瞄准屏幕上产生瞄准图像时，所述条形码读取器被定向为读取所述目标条形码。

公开(公告)号：US07281662B2

公开(公告)日：2007-10-16

申请号：US11027733

申请日：2004-12-30

申请人： Duanfeng He ,  Eugene Joseph

发明人： Duanfeng He ,  Eugene Joseph

IPC分类号： G06K7/10

CPC分类号： G06K7/10732 ,  G06K19/06009 ,  G06K19/063

摘要： Methods and apparatus for illuminating objects comprising asymmetrically illuminating an object using an illumination medium on one side of an optical module of an information capturing module, capturing an electronic representation of the object and decoding the electronic representation of said object. In alternate embodiments, the scanner successively illuminates the object from a plurality of different angles until the object and/or dataform is decoded. The illumination medium can be external to the information capturing module.

摘要翻译： 用于照明物体的方法和装置，包括使用信息捕获模块的光学模块的一侧上的照明介质来对物体照明，捕获对象的电子表示并解码所述对象的电子表示。 在替代实施例中，扫描器从多个不同的角度连续地照亮对象，直到对象和/或数据形式被解码。 照明介质可以在信息捕获模块的外部。

公开(公告)号：US20070199996A1

公开(公告)日：2007-08-30

申请号：US11364250

申请日：2006-02-28

申请人： Duanfeng He ,  Eugene Joseph

发明人： Duanfeng He ,  Eugene Joseph

IPC分类号： G06K7/10

CPC分类号： G06K7/12 ,  G06K2207/1011

摘要： An ambient illumination shielding apparatus for an imaging-based scanner adapted to read direct part marking (DPM) bar codes. The shielding apparatus includes an illumination shield extending from a housing of the scanner and extending along at least a portion of a path of travel of an aiming pattern generated by an aiming apparatus of the scanner. The shield passes illumination within a predetermined wavelength range and impedes passage of illumination outside of the predetermined wavelength range. The predetermined wavelength range of the shield includes a wavelength range of the aiming pattern generated by the aiming apparatus. The shielding apparatus further includes a filter disposed in proximity to an imaging system of the scanner and passing illumination within a predetermined wavelength range to the pixel array and impeding the passage of illumination outside of the predetermined wavelength range. The predetermined wavelength range of the filter includes a wavelength range of an illumination system of the scanner.

摘要翻译： 适用于读取直接部件标记（DPM）条形码的基于成像的扫描仪的环境照明屏蔽装置。 屏蔽装置包括从扫描仪的壳体延伸并沿着由扫描仪的瞄准装置产生的瞄准图案的行进路径的至少一部分延伸的照明屏蔽物。 屏蔽层在预定波长范围内通过照明，并阻止在预定波长范围之外的照明通过。 屏蔽的预定波长范围包括由瞄准装置产生的瞄准图案的波长范围。 屏蔽装置还包括设置在扫描仪的成像系统附近的滤光器，并且将预定波长范围内的照明传递到像素阵列并阻止照射在预定波长范围之外的通过。 滤波器的预定波长范围包括扫描仪的照明系统的波长范围。

公开(公告)号：US20070079029A1

公开(公告)日：2007-04-05

申请号：US11240420

申请日：2005-09-30

申请人： Bradley Carlson ,  William Sackett ,  Eugene Joseph ,  Duanfeng He

发明人： Bradley Carlson ,  William Sackett ,  Eugene Joseph ,  Duanfeng He

IPC分类号： G06F13/38

CPC分类号： G06K7/10722

摘要： Interleaving multiple logical data streams into one physical data stream reduces overhead required to process the multiple logical data streams. Multiple arrays of data values are interleaved into a combined array of data that simulates a frame of data for input to a data port such as a video port. Revised timing and synchronization signals are provided to permit transmission of the combined array according to video data port protocol. The processor includes instructions for locating the various arrays of data values within the combined array.

摘要翻译： 将多个逻辑数据流交织成一个物理数据流减少了处理多个逻辑数据流所需的开销。 数据值的多个数组被交织成模拟数据帧的数据的组合阵列，以输入到诸如视频端口的数据端口。 提供修正的定时和同步信号以允许根据视频数据端口协议传输组合阵列。 处理器包括用于定位组合阵列内的各种数据值阵列的指令。

公开(公告)号：US20060118633A1

公开(公告)日：2006-06-08

申请号：US11292926

申请日：2005-12-02

申请人： Duanfeng He ,  Eugene Joseph

发明人： Duanfeng He ,  Eugene Joseph

IPC分类号： G06K7/10

CPC分类号： G06K7/14 ,  G06K7/1417 ,  G06K7/1443 ,  G06K7/1456 ,  G06K2207/1011

摘要： A two dimensional symbol is decoded by forming a binary image that includes the symbol. The binary is used to generate symbol margins for use in digitization. By using the binary image to determine the symbol margins, margins can be located efficiently and in the presence of symbol contrast variation caused by irregularities in the marked surface or light source angles. Digitization proceeds based on the determined margins.

摘要翻译： 通过形成包括符号的二进制图像来对二维符号进行解码。 二进制文件用于生成用于数字化的符号边距。 通过使用二进制图像来确定符号边缘，可以有效地定位边距，并且在存在由标记的表面或光源角度的不规则引起的符号对比度变化的情况下。 数字化基于确定的利润率进行。

公开(公告)号：US20060118632A1

公开(公告)日：2006-06-08

申请号：US11032767

申请日：2005-01-10

申请人： Eugene Joseph ,  Duanfeng He

发明人： Eugene Joseph ,  Duanfeng He

IPC分类号： G06K7/10

CPC分类号： G06K7/14

摘要： A two dimensional symbol is decoded by forming a sub-sampled image that is used to generate symbol margins for use in digitization. The sub-sampled image is based on local levels of contrast in the symbol. By using a sub-sampled image derived from local levels of contrast in the symbol to determine the symbol margins, margins can be located efficiently and in the presence of symbol contrast variation caused by irregularities in the marked surface angles. Digitization proceeds based on the determined margins.

摘要翻译： 通过形成用于产生用于数字化的符号余量的子采样图像来对二维符号进行解码。 子采样图像基于符号中的对比度的局部级别。 通过使用从符号中的局部对比度级别导出的子采样图像来确定符号边缘，可以有效地定位边界，并且在存在由标记的表面角度的不规则性引起的符号对比度变化的情况下。 数字化基于确定的利润率进行。

公开(公告)号：US06250551B1

公开(公告)日：2001-06-26

申请号：US09096348

申请日：1998-06-12

申请人： Duanfeng He ,  Eugene Joseph ,  Joseph Cai

发明人： Duanfeng He ,  Eugene Joseph ,  Joseph Cai

IPC分类号： G06K710

CPC分类号： G06K7/14

摘要： The disclosure relates to optical image readers having a two-dimensional image sensor and an auto-discrimination function. The auto-discrimination function identifies optical codes by type for pixel clusters and, in some cases, tilt angle and start/stop coordinates. The clustered pixel data is passed to an appropriate decoder identified by the auto-discrimination function based upon a likelihood that the cluster contains an optical code of a particular type. Line drawing techniques provide for adequate sampling of the clustered pixel data code based on the tilt angle of the code relative to a image sensor array.