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SYSTEMS AND METHODS OF OPTICAL CODE READING USING A COLOR IMAGER

  • US 20100213259A1
  • Filed: 02/18/2010
  • Published: 08/26/2010
  • Est. Priority Date: 02/20/2009
  • Status: Active Grant
First Claim
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1. A method of data reading comprising the steps of:

  • illuminating a field of view of an optical code reader to produce light reflected from an optical code toward an optical system of the optical code reader;

    focusing with the optical system the reflected light to form an image of the optical code on a color image sensor array of the optical code reader, the color image sensor array including;

    a first set of sensor pixels sensitive to light having a wavelength within a first wavelength band, anda second set of sensor pixels sensitive to light having a wavelength within a second wavelength band different from the first wavelength band;

    producing multiple sets of image data including a first of image data representing light intensity values sensed by the first set of sensor pixels and a second set of image data representing light intensity values sensed the second set of sensor pixels;

    selecting from the multiple sets of image data a target set of image data by comparing statistical characteristics of the light intensity values of the first and second sets of image data, the statistical characteristics corresponding to intensity variations of the light intensity values; and

    processing the target set of image data to decode the optical code.

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