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61. 发明授权

US06405925B2 Autodiscrimination and line drawing techniques for code readers 有权
标题翻译：代码阅读器的自动识别和线绘图技术
公开(公告)号：US06405925B2
公开(公告)日：2002-06-18
申请号：US09809216
申请日：2001-03-16
申请人： Duanfeng He , Eugene Joseph , Joseph Cai
发明人： Duanfeng He , Eugene Joseph , Joseph Cai
IPC分类号： G06K922
CPC分类号： G06K7/14
摘要： Optical image readers have 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 technique provide for adequate sampling of the clustered pixel data code based on the tilt angle of the code relative to an image sensor array.
摘要翻译：光学图像读取器具有二维图像传感器和自动识别功能。自动识别功能根据像素簇的类型识别光学代码，并且在某些情况下识别倾斜角度和起始/停止坐标。基于簇包含特定类型的光码的可能性，将聚类像素数据传送到由自动识别功能识别的适当解码器。线绘制技术提供了基于代码相对于图像传感器阵列的倾斜角的聚类像素数据代码的适当采样。

62. 发明授权

US08915442B2 Arrangement for and method of reducing short reads in an imaging reader 有权
标题翻译：减少成像读取器中的短读取的布置和方法
公开(公告)号：US08915442B2
公开(公告)日：2014-12-23
申请号：US12322134
申请日：2009-01-29
申请人： Joseph Cai , Duanfeng He , Dayou Wang , Michelle Wang
发明人： Joseph Cai , Duanfeng He , Dayou Wang , Michelle Wang
IPC分类号： G06K7/10 , G06K5/04 , G06K7/14
CPC分类号： G06K7/14 , G06K7/1491
摘要： An arrangement for, and a method of, enhancing performance of an imaging reader for imaging symbols to be read, include a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a symbol as pixel data over a field of view, and a controller operatively connected to the imager, for mapping a virtual scan line in the field of view, for determining whether the virtual scan line extends entirely over the symbol, for remapping the virtual scan line as a remapped virtual scan line that extends entirely over the symbol upon determining that the virtual scan line extends partially over the symbol, and for decoding the pixel data that lies on the remapped virtual scan line.
摘要翻译：包括用于对要读取的符号进行成像的成像读取器的性能的装置和方法，包括由读取器支持的固态成像器，并且具有用于将来自符号的返回光作为像素数据捕获的图像传感器阵列视场，以及可操作地连接到成像器的控制器，用于在视场中映射虚拟扫描线，用于确定虚拟扫描线是否完全延伸穿过符号，用于将虚拟扫描线重新映射为重新映射的虚拟扫描在确定虚拟扫描线部分地延伸到符号之上并且用于对位于重新映射的虚拟扫描线上的像素数据进行解码时，线完全在符号上延伸。

63. 发明授权

US07986340B2 Arrangement for and method of projecting a color image by switching scan directions in alternate frames 有权
标题翻译：通过在交替帧中切换扫描方向来投影彩色图像的布置和方法
公开(公告)号：US07986340B2
公开(公告)日：2011-07-26
申请号：US12945232
申请日：2010-11-12
申请人： Duanfeng He , Dmitriy Yavid , Askold Strat
发明人： Duanfeng He , Dmitriy Yavid , Askold Strat
IPC分类号： H04N3/02
CPC分类号： H04N3/08 , H04N9/3129 , H04N9/3164 , H04N9/3176 , H04N9/3185
摘要： A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern of scan lines to be illuminated to produce an image of high resolution in color. The direction of scanning of the scan lines is switched between alternate frames, and the resulting image is the superposition of successive frames integrated for viewing by the human eye.
摘要翻译：特别是用于安装在具有透光窗口的壳体中的轻巧紧凑的图像投影模块可操作用于使得扫描线的光栅图案中的所选像素被照亮以产生高分辨率的彩色图像。扫描线的扫描方向在交替帧之间切换，并且所得到的图像是由人眼集成以供观看的连续帧的叠加。

64. 发明授权

US07866557B2 Imaging-based bar code reader utilizing modified rolling shutter operation 有权
标题翻译：基于成像的条形码阅读器利用改进的卷帘快门操作
公开(公告)号：US07866557B2
公开(公告)日：2011-01-11
申请号：US11862583
申请日：2007-09-27
申请人： Duanfeng He , Bradley S. Carlson
发明人： Duanfeng He , Bradley S. Carlson
IPC分类号： G03B7/08 , G06K5/00 , G06K7/10 , G06K7/14 , H04N3/14 , H04N5/335
CPC分类号： G06K7/10722 , G06K7/10732 , G06K7/10752
摘要： An imaging system for use in an bar code reader for imaging a target bar code. The imaging system includes a 2D sensor array generating a series of image frames and The sensor array can be selectively operated in a rolling shutter mode of operation or a pseudo global shutter mode of operation. The imaging system further includes an imaging lens assembly to focus light from the field of view onto the sensor array and an image analysis system for analyzing the series of image frames generated by the sensor array for image brightness and, based on image brightness, operating the sensor array in a selected one of the rolling shutter mode of operation and the pseudo-global shutter mode of operation.
摘要翻译：一种用于条形码阅读器的成像系统，用于对目标条形码进行成像。成像系统包括产生一系列图像帧的2D传感器阵列，并且传感器阵列可以选择性地以滚动快门操作模式或伪全局快门操作模式操作。成像系统还包括将来自视野的光聚焦到传感器阵列上的成像透镜组件和用于分析由传感器阵列产生的图像亮度的一系列图像帧的图像分析系统，并且基于图像亮度，操作传感器阵列中选择的一种滚动快门操作模式和伪全局快门操作模式。

65. 发明申请

US20100264219A1 FRACTIONAL DOWN-SAMPLING IN IMAGING BARCODE SCANNERS 有权
标题翻译：成像扫描仪中的下降采样
公开(公告)号：US20100264219A1
公开(公告)日：2010-10-21
申请号：US12425640
申请日：2009-04-17
申请人： Duanfeng He , Brad Carlson , Mark Dryzmala
发明人： Duanfeng He , Brad Carlson , Mark Dryzmala
IPC分类号： G06K7/10
CPC分类号： G06K7/10722 , G06K7/10851
摘要： A method of improving the performance of an imaging reader includes (1) illuminating a symbol by projecting illuminating light on the symbol from the imaging reader, (2) capturing return light form the symbol as pixel data over a two-dimensional field of view of a solid-state imager having a matrix of image sensors, (3) reducing the number of pixels to generate reduced pixel data, (4) transmitting the reduced pixel data to a decoding circuit.
摘要翻译：一种提高成像读取器的性能的方法包括：（1）通过从成像读取器将符号投射照明光来照亮符号，（2）在二维视场中将作为像素数据的返回光形成为像素数据，具有图像传感器矩阵的固态成像器，（3）减少像素数以产生减少的像素数据，（4）将缩小像素数据传输到解码电路。

66. 发明申请

US20100187314A1 Arrangement for and method of reducing short reads in an imaging reader 有权
标题翻译：减少成像读取器中的短读取的布置和方法
公开(公告)号：US20100187314A1
公开(公告)日：2010-07-29
申请号：US12322134
申请日：2009-01-29
申请人： Joseph Cai , Duanfeng He , Dayou Wang , Michelle Wang
发明人： Joseph Cai , Duanfeng He , Dayou Wang , Michelle Wang
IPC分类号： G06K7/10
CPC分类号： G06K7/14 , G06K7/1491
摘要： An arrangement for, and a method of, enhancing performance of an imaging reader for imaging symbols to be read, include a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a symbol as pixel data over a field of view, and a controller operatively connected to the imager, for mapping a virtual scan line in the field of view, for determining whether the virtual scan line extends entirely over the symbol, for remapping the virtual scan line as a remapped virtual scan line that extends entirely over the symbol upon determining that the virtual scan line extends partially over the symbol, and for decoding the pixel data that lies on the remapped virtual scan line.
摘要翻译：包括用于对要读取的符号进行成像的成像读取器的性能的装置和方法，包括由读取器支持的固态成像器，并且具有用于将来自符号的返回光作为像素数据捕获的图像传感器阵列视场，以及可操作地连接到成像器的控制器，用于在视场中映射虚拟扫描线，用于确定虚拟扫描线是否完全延伸穿过符号，用于将虚拟扫描线重新映射为重新映射的虚拟扫描在确定虚拟扫描线部分地延伸到符号之上并且用于对位于重新映射的虚拟扫描线上的像素数据进行解码时，线完全在符号上延伸。

67. 发明申请

US20090084847A1 Imaging-Based Bar Code Reader Utilizing Modified Rolling Shutter Operation 有权
标题翻译：基于成像的条形码阅读器利用改进的滚动快门操作
公开(公告)号：US20090084847A1
公开(公告)日：2009-04-02
申请号：US11862583
申请日：2007-09-27
申请人： Duanfeng He , Bradley S. Carlson
发明人： Duanfeng He , Bradley S. Carlson
IPC分类号： G06K7/10
CPC分类号： G06K7/10722 , G06K7/10732 , G06K7/10752
摘要： An imaging system for use in an bar code reader for imaging a target bar code. The imaging system includes a 2D sensor array generating a series of image frames and The sensor array can be selectively operated in a rolling shutter mode of operation or a pseudo global shutter mode of operation. The imaging system further includes an imaging lens assembly to focus light from the field of view onto the sensor array and an image analysis system for analyzing the series of image frames generated by the sensor array for image brightness and, based on image brightness, operating the sensor array in a selected one of the rolling shutter mode of operation and the pseudo-global shutter mode of operation.
摘要翻译：一种用于条形码阅读器的成像系统，用于对目标条形码进行成像。成像系统包括产生一系列图像帧的2D传感器阵列，并且传感器阵列可以选择性地以滚动快门操作模式或伪全局快门操作模式操作。成像系统还包括将来自视野的光聚焦到传感器阵列上的成像透镜组件和用于分析由传感器阵列产生的图像亮度的一系列图像帧的图像分析系统，并且基于图像亮度，操作传感器阵列中选择的一种滚动快门操作模式和伪全局快门操作模式。

68. 发明申请

US20070248275A1 Method and System for Image Compression Using Image Symmetry 有权
标题翻译：使用图像对称的图像压缩的方法和系统
公开(公告)号：US20070248275A1
公开(公告)日：2007-10-25
申请号：US11766228
申请日：2007-06-21
申请人： Ali Tabesh , Duanfeng He
发明人： Ali Tabesh , Duanfeng He
IPC分类号： G06K9/46
CPC分类号： G06T9/005 , G06K9/00221
摘要： An image compression system and method is described, which makes use of the symmetry found in faces and heads to perform the compression. The image is divided along the line of symmetry, and pairs of corresponding pixels on the two divided sides are determined. A weighted average and a weighted variance of the pixel values of the pairs is computed, and is used to encode the image. A transform such as the Karhunen-Loeve transform is used to compute the weighted averages and variances.
摘要翻译：描述了一种图像压缩系统和方法，其利用在面部和头部中发现的对称性来执行压缩。图像沿着对称线分割，并且确定两个分开的边上的对应像素对。计算对的像素值的加权平均和加权方差，并用于对图像进行编码。使用诸如Karhunen-Loeve变换的变换来计算加权平均值和方差。

69. 发明授权

US07254275B2 Method and system for image compression using image symmetry 有权
标题翻译：使用图像对称的图像压缩方法和系统
公开(公告)号：US07254275B2
公开(公告)日：2007-08-07
申请号：US10321911
申请日：2002-12-17
申请人： Ali Tabesh , Duanfeng He
发明人： Ali Tabesh , Duanfeng He
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： G06T9/005 , G06K9/00221
摘要： An image compression system and method is described, which makes use of the symmetry found in faces and heads to perform the compression. The image is divided along the line of symmetry, and pairs of corresponding pixels on the two divided sides are determined. A weighted average and a weighted variance of the pixel values of the pairs is computed, and is used to encode the image. A transform such as the Karhunen-Loeve transform is used to compute the weighted averages and variances.
摘要翻译：描述了一种图像压缩系统和方法，其利用在面部和头部中发现的对称性来执行压缩。图像沿着对称线分割，并且确定两个分开的边上的对应像素对。计算对的像素值的加权平均和加权方差，并用于对图像进行编码。使用诸如Karhunen-Loeve变换的变换来计算加权平均值和方差。

70. 发明申请

US20070057067A1 Sensor for activating an aiming pattern of a handheld scanner 有权
标题翻译：用于激活手持扫描仪瞄准图案的传感器
公开(公告)号：US20070057067A1
公开(公告)日：2007-03-15
申请号：US11227649
申请日：2005-09-15
申请人： Duanfeng He
发明人： Duanfeng He
IPC分类号： G06K7/10
CPC分类号： G06K7/10881 , G06K7/10851 , G06K2207/1011
摘要： A portable indicium scanner that includes circuitry for enabling an aiming pattern through an activation device. The aiming pattern targets selected indicia and signals the operator indicating whether a proper selection has been made, thereby allowing an imaging system to capture and decode the targeted indicia. The activation device includes a switch, two-stage trigger, an accelerometer, or photosensor that is located within the scanner.
摘要翻译：一种便携式标记扫描器，其包括用于通过激活装置实现瞄准图案的电路。瞄准模式针对所选择的标记并向操作者发信号，指示是否已经进行适当的选择，从而允许成像系统捕获和解码目标标记。激活装置包括位于扫描仪内的开关，两级触发器，加速度计或光电传感器。

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