发明授权
US07278575B2 Hand-supportable image-based bar code symbol reader employing helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereof
有权
对于从其中心引用的对象的捕获的数字图像，可手持支持的基于图像的条形码符号读取器采用螺旋扫描特征提取分析
- 专利标题： Hand-supportable image-based bar code symbol reader employing helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereof
- 专利标题（中）： 对于从其中心引用的对象的捕获的数字图像，可手持支持的基于图像的条形码符号读取器采用螺旋扫描特征提取分析
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申请号： US10901426申请日： 2004-07-27
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公开(公告)号： US07278575B2公开(公告)日： 2007-10-09
- 发明人: Xiaoxun Zhu , Yong Liu , Ka Man Au , Rui Hou , Hongpeng Yu , Xi Tao , Liang Liu , Wenhua Zhang , Anatoly Kotlarsky , Sankar Ghosh , Michael Schnee , Pasqual Spatafore , Thomas Amundsen , Sung Byun , Mark Schmidt , Garrett Russell , John Bonanno , C. Harry Knowles
- 申请人： Xiaoxun Zhu , Yong Liu , Ka Man Au , Rui Hou , Hongpeng Yu , Xi Tao , Liang Liu , Wenhua Zhang , Anatoly Kotlarsky , Sankar Ghosh , Michael Schnee , Pasqual Spatafore , Thomas Amundsen , Sung Byun , Mark Schmidt , Garrett Russell , John Bonanno , C. Harry Knowles
- 申请人地址： US NJ Blackwood
- 专利权人： Metrologic Instruments, Inc.
- 当前专利权人： Metrologic Instruments, Inc.
- 当前专利权人地址： US NJ Blackwood
- 代理商 Thomas J. Perkowski, Esq. P.C.
- 主分类号： G06K5/04
- IPC分类号： G06K5/04
摘要：
A hand-supportable digital imaging-based bar code symbol reader comprises: an automatic object presence detection subsystem; an image formation and detection subsystem; a LED-based illumination subsystem having a wide area illumination mode of operation; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; an image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem for controlling each of the above-described subsystems. The image-processing bar code symbol reading subsystem performs helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereof, so as to enable the rapid reading of a bar code symbol graphically represented therein, using advanced image-processing based bar code reading techniques.
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