DIGITAL PIXEL SENSOR WITH ADAPTIVE NOISE REDUCTION

In some examples, a sensor apparatus comprises: a pixel cell configured to generate a voltage, the pixel cell including one or more photodiodes configured to generate a charge in response to light and a charge storage device to convert the charge to a voltage; an integrated circuit comprising a plurality of integrated memory circuits and configured to: generate, based on a first voltage obtained from the charge storage device of the pixel cell, a first voltage value during a first time period; and generate, based on a second voltage generated by fixed pattern noise from the pixel cell and the integrated circuit, a second voltage value occurring a second time period; and one or more analog-to-digital converters (ADC) configured the convert the first voltage value to a first digital pixel value and the second voltage value to a second digital pixel value; and a processor configured to generate a first altered digital pixel value based on the first digital pixel value and the second digital pixel value.