1. A parking-assist system for providing parking-assist information, comprising: a first imaging camera configured to image a front side of a vehicle; a second imaging camera configured to image a left side of the vehicle; a third imaging camera configured to image a right side of the vehicle; a fourth imaging camera configured to image a rear side of the vehicle; a first infrared laser camera configured to obtain information on a distance as to the left side of the vehicle on a pixel to pixel basis; a second infrared laser camera configured to obtain information on a distance as to the right side of the vehicle on a pixel to pixel basis; a third infrared laser camera configured to obtain information on a distance as to the rear side of the vehicle on a pixel to pixel basis; and a signal processing portion to which information on images from one or more of the imaging cameras and the information on the distances from one or more of the infrared laser cameras are inputted; wherein the parking-assist system provides the parking-assist information according to the information on the images from the one or more of the imaging cameras and the information on the distances as to each pixel from the one or more of the infrared laser cameras.