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    • 3. 发明申请
    • Adaptive optical image reader
    • 自适应光学图像读取器
    • US20050056699A1
    • 2005-03-17
    • US10775983
    • 2004-02-10
    • Timothy MeierAndrew LongacreThomas HawleyJohn PettinelliRobert Hussey
    • Timothy MeierAndrew LongacreThomas HawleyJohn PettinelliRobert Hussey
    • G06K7/10G06K7/14G06K9/24
    • G06K7/10722G06K7/10752G06K7/10851
    • A digital image reading system including an image sensor and a computer that is programmed to adjust the frame rate of the image sensor, and to obtain a maximum frame rate of the image sensor for obtaining an acceptable image. An algorithm for adjusting the frame rate evaluates image parameters and calculates new exposure times, gain values, and exposure settings to support a maximum frame rate of the image sensor. A process for obtaining an acceptable image with an image reader evaluates an image signal level and adjusts the frame rate if the signal level is outside of a predetermined range. The process adjusts the image sensor to run at a maximum operational frame rate. A digital image reading system including multiple separate digitizers for use in various read environments and under various read conditions.
    • 一种数字图像读取系统,包括图像传感器和计算机,其被编程为调整图像传感器的帧速率,并且获得用于获得可接受图像的图像传感器的最大帧速率。 用于调整帧速率的算法评估图像参数并计算新的曝光时间,增益值和曝光设置,以支持图像传感器的最大帧速率。 用图像读取器获得可接受图像的过程评估图像信号电平,并且如果信号电平在预定范围之外,则调整帧速率。 该过程调整图像传感器以最大运行帧速率运行。 一种数字图像读取系统,包括用于各种读取环境和各种读取条件下的多个单独的数字化仪。
    • 10. 发明授权
    • Apparatus processing two dimensional image representations for optical reading
    • 装置处理用于光学阅读的二维图像表示
    • US07059525B2
    • 2006-06-13
    • US10227889
    • 2002-08-26
    • Andrew LongacreRobert M. HusseyThomas J. KoziolMichael A. Ehrhart
    • Andrew LongacreRobert M. HusseyThomas J. KoziolMichael A. Ehrhart
    • G06K7/10
    • G06K7/10821G06K7/10544G06K7/10851G06K7/14G06K7/1491G06K17/0022G06K19/06037G06K2207/1017
    • An apparatus is described for use in reading bar code symbols. The apparatus can acquire two dimensional image representations. In one embodiment the apparatus can include an image sensor and can be configured to have an adjustable frame rate. The apparatus in another embodiment can include an image sensor and can have decoding circuitry processing two dimensional image representations having a number of picture elements different from the number of picture elements of the image sensor. In another embodiment an apparatus can calculate a rate of change of a plurality of image data element. An apparatus in another embodiment can be used to determine whether a candidate symbol region is present utilizing gray scale image data elements. In another embodiment an apparatus can be used to determine whether a finder pattern is represented in an image representation and select a finder pattern in accordance with an identified finder pattern.
    • 描述了用于读取条形码符号的装置。 该装置可以获取二维图像表示。 在一个实施例中,设备可以包括图像传感器,并且可以被配置为具有可调整的帧速率。 另一实施例中的装置可以包括图像传感器,并且可以具有处理具有与图像传感器的图像元素的数量不同的多个图像元素的二维图像表示的解码电路。 在另一个实施例中,装置可以计算多个图像数据元素的变化率。 另一实施例中的装置可以用于使用灰度级图像数据元素确定候选符号区域是否存在。 在另一个实施例中,可以使用装置来确定取景器图案是否在图像表示中被表示,并且根据识别的取景器图案来选择取景器图案。