Patent ID: 9161026
Filing Date: 2015-10-13
Classification: H04N

Abstract:
1. A method for calibrating an imager comprising: capturing a plurality of images of a target with a sensor array of the imager, each of the plurality of images having an associated integration time; determining a representative digital count for each of the plurality of images; representing integration time as a function of digital count from the respective digital counts and integration times associated with the plurality of images; and calculating a calibrated integration time from a target digital count wherein determining a representative digital count for each of the plurality of images comprises determining a digital count for each of a plurality of color channels associated with the image to provide a set of representative digit counts, and representing integration time as a function of digital count comprises determining a polynomial function representing integration time as a function of digital count for each color channel, and calculating a calibrated integration time from a target digital count comprises calculating respective calibrated integration times for the plurality of color channels from their respective associated polynomial functions and the target digital count, the method further comprising selecting a minimum calibrated integration time of the calibrated integration times.