The embodiment of the invention discloses an automatic
exposure parameter calibrating method and device based on a double-camera
system. The method comprises the steps of: respectively acquiring a first image and a second image of a target object on the basis of a first camera and a second camera; acquiring a
common view field of the first camera and the second camera, and respectively carrying out statistics on a first brightness value and a second brightness value of pixel regions in the first image and the second image, which are positioned in the
common view field; and regulating
exposure parameters so as to enable the first brightness value and the second brightness value to be the same and respectively reach at least one preset target brightness value, and respectively recording
exposure parameters of the first camera and the second camera, which corresponds to the preset target brightness value. According to the technical scheme of the embodiment of the invention, not only is inconsistency of brightness response of the first camera and the second camera in the double-camera
system compensated, but also double-camera exposure is cooperatively controlled by utilizing a common statistic quantity of the images of the double-camera
system, brightness consistency of the double-camera system is implemented.