Abstract: A moving object detection method and apparatus is proposed in which a plurality of heads are installed above a detection line traversing a road, their outputs undergo A/D conversion and binary conversion, and the outputs are then linked along the detection line. A vehicle detection preprocessor performs, on the obtained linked 0/1 existence data, vehicle detection preprocesses of filling-up, noise rejection, width maintaining, Y character profile prevention, delaying, maximum width checking, and so forth, in a predetermined sequence. A vehicle detection processor separates and detects entering vehicles, existing vehicles, corrected/deleted vehicles, and so forth, from the linked 0/1 existence data after vehicle detection preprocessing. False detection of moving objects is reduced.

Abstract: A system and a method for detecting vehicle types utilizing height information and a debiting system using such a system or a method. A plurality of distance sensors (heads) are provided laterally on a road, and 0/1 linked existence data and linked height data are generated by a link generator. The former data represent the existence of a vehicle on a detection line drawn along the road width direction on the basis of the distance data obtained by the heads and the latter data represent height profiles of a vehicle on the detection line. Height data such as maximum, minimum and average height in every height block are calculated by a scan-by-scan height evaluator 38 on the basis of the linked height data and vehicle position information, and a vehicle type detector 40 detects the type of the vehicle.