Abstract
The present invention relates to a readout circuit with on-sensor-chip two-dimensional interpolation, in which the readout circuit includes plural signal readout units and at least one connection switch. Each signal readout unit comprises one charge storage device, in which the stored charge is the received light brightness sensed by the corresponding pixel unit. Before the charges in the charge storage devices are read out, the connection switch is used to connect with these charge storage devices so as to share the stored charges. Thus, it is capable of realizing two-dimensional interpolation function in the analog domain.