中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

2 records (took 0.022 seconds)

    DATA READER AND METHODS FOR IMAGING TARGETS SUBJECT TO SPECULAR REFLECTION
    1.
    发明申请
    DATA READER AND METHODS FOR IMAGING TARGETS SUBJECT TO SPECULAR REFLECTION 审中-公开
    数据读取器和用于成像目标的方法，以进行特殊反射

    公开(公告)号：WO2006081466A3

    公开(公告)日：2007-11-15

    申请号：PCT/US2006003010

    申请日：2006-01-26

    Applicant: DATALOGIC SCANNING INC

    Inventor： OLMSTEAD BRYAN L ,  SMITH LARRY JAMES

    IPC: G06K7/10

    CPC classification number: G06K7/14 ,  G06K7/10752 ,  G06K7/1465 ,  H04N1/02865 ,  H04N1/40056

    Abstract: A data reader such as for example an imaging reader with a CCD or CMOS imager or the like, having multiple images of a target item illuminated or acquired from different directions in which the image signals are combined into a complete image of the item or selected portions of the item being read such that specular reflection (over-saturated regions of the sensor array) are minimized or eliminated. In one example data reader configuration, multiple illumination sources such as first and second rows of light emitting diodes (LED's) are aimed at the item being scanned from different directions. The illumination sources are alternately pulsed and return signals are collected at one or more sensor arrays. A selected non-saturated return signal from one of the illumination sources, or selected non-saturated portions of return signal from both of the illumination sources are processed to generate a complete non-saturated image of the target. In one preferred processing scheme, assuming that each of the LED's is capable of illuminating the entire target (e.g. a barcode), a pixel-by-pixel minimum is taken of the two images thereby producing an image with specular reflection minimized or nearly eliminated.

    Abstract translation: 数据读取器，例如具有CCD或CMOS成像器等的成像读取器，具有从不同方向照明或获取的目标物品的多个图像，其中将图像信号组合成该物品或所选部分的完整图像 被读取的物品使得镜面反射（传感器阵列的过饱和区域）被最小化或消除。 在一个示例性数据读取器配置中，诸如第一和第二排发光二极管（LED）的多个照明源针对从不同方向进行扫描的物品。 照明源是交替脉冲的，并且在一个或多个传感器阵列处收集返回信号。 来自一个照明源的选择的非饱和返回信号或来自两个照明源的选择的非饱和部分的返回信号被处理以产生目标的完整的非饱和图像。 在一个优选的处理方案中，假设每个LED能够照射整个目标（例如条形码），则对两个图像进行逐像素最小化，从而产生最小化或几乎消除了镜面反射的图像。

Patent Agency Ranking