Patent ID: 8118226
Filing Date: 2012-02-21
Classification: G06K

Abstract:
1. A method of imaging an object in a field of view of an optical code reading device, the optical code reading device having a color image sensor array, the method comprising: illuminating the field of view of the optical code reading device with artificial infrared light that is incident upon the object, thereby producing reflected infrared light, the reflected infrared light having wavelengths within an infrared wavelength band; sensing the reflected infrared light with a first set of sensor elements of the color image sensor array, the first set of sensor elements being sensitive to the infrared light and to visible light having wavelengths within a first visible wavelength band; sensing the reflected infrared light with a second set of sensor elements of the color image sensor array, the second set of sensor elements being sensitive to the infrared light and to visible light having wavelengths within a second visible wavelength band different from the first visible wavelength band; and producing image data from the first and second sets of sensor elements, the image data being derived from the infrared light sensed by the first and second sets of sensor elements and representing a high-resolution infrared image of the object.