VEHICLE SURROUNDINGS MONITORING DEVICE AND VEHICLE SURROUNDINGS MONITORING METHOD

A vehicle surroundings monitoring device can simultaneously display with high visibility a bird's-eye view image, an auxiliary image, and the direction of the auxiliary image. The vehicle surroundings monitoring device (100) has a display control section (140) for displaying on a single display screen both a bird's-eye view image that is an image of view from above the vehicle, viewing the surroundings of the vehicle, and an auxiliary image that is an image of the surroundings of the vehicle, viewed from the vehicle; a frame line overlay section (143) for causing a frame line surrounding an image region corresponding to the auxiliary image to be displayed overlaid on the bird's-eye view image; and first to fourth cameras (110-1 to 110-4) attached to the vehicle and imaging the surroundings of the vehicle. The display control section (140) composes a bird's-eye view image by using images captured by the first to fourth cameras (110-1 to 110-4).