Delta vision sensor

An image sensor comprising an arrangement of pixels, each of the pixels including an acquisition circuit, the acquisition circuit including:

• a sensor circuit configured to generate a sensor signal depending on a light signal illuminating a photosensor of the pixel;
• a storage circuit configured to store during a storage interval a stored signal proportional to the sensor signal;
• and
• a comparator circuit configured to generate, after the storage interval, a comparator signal depending on the sensor signal and the stored signal,
• wherein the storage circuit includes at least one amplifier, and the comparator circuit includes the same at least one amplifier,
• wherein the sensor signal is connected to an input of the at least one amplifier and wherein another input of the at least one amplifier is connected via a capacitor to ground, substrate, or other common potential,
• wherein the at least one amplifier and the capacitor belong to the storage circuit during the storage interval and belong to the compactor circuit after the storage interval,
• wherein the acquisition circuit further comprises a signal line for refreshing the stored signal during the storage interval, and
• wherein an output of the at least one amplifier is connected via a switch to the capacitor, wherein the switch is controlled by the signal line.