PIXEL IMAGE NON-UNIFORMITY COMPENSATION METHOD BASED ON CAPACITANCE TRIMMING AND IMAGE SENSOR HAVING PIXELS WITH VARIABLE CAPACITORS FOR NON-UNIFORMITY COMPENSATION

摘要

The present invention discloses a method for pixel image non-uniformity compensation. The method including the steps of: first, receiving an input image by an image sensor having a plurality of pixels, wherein each pixel includes a variable capacitor; next, calculating brightness information of at least a portion of the pixels; and further, trimming the capacitances of the variable capacitors in the portion of pixels respectively according to the brightness information.