Imaging device and electronic device

An imaging device comprising:

• a pixel region;
• and
• a first circuit,
• wherein the pixel region comprises a pooling module and an output circuit,
• wherein the pooling module comprises a plurality of pooling circuits and a comparison module,
• wherein the pooling circuit comprises a plurality of pixels and an arithmetic circuit,
• wherein the comparison module comprises a plurality of comparison circuits and a determination circuit,
• wherein the pixel is configured to obtain a first signal through photoelectric conversion,
• wherein the pixel is configured to multiply the first signal by a given scaling factor to generate a second signal,
• wherein the pooling circuit is configured to add a plurality of the second signals in the arithmetic circuit to generate a third signal,
• wherein the comparison module is configured to compare a plurality of the third signals, selecting the largest third signal, and outputting the largest third signal to the determination circuit,
• wherein the determination circuit is configured to determine the largest third signal and binarize the largest third signal to generate a fourth signal,
• wherein the first circuit controls timing at which the fourth signal is output to the output circuit,
• wherein the pooling module performs pooling processing in accordance with the number of the pixels, and
• wherein the pooling module outputs the fourth signal generated by the pooling processing.