The city of Ulju-gun, Ulsan, South Korea, with its population of nearly 200,000 citizens, desired a new video surveillance system that was exceptional in capturing clear images of the numbers and letters on license plates. Vehicles are commonly used by people committing crimes and the government sought a system that could recognize a license plate number and lead to an arrest. Ulju-gun administrators incorporated opinions from the police department and other local organizations in implementing the new system.
License Plate Recognition (LPR) is a useful capability of video surveillance systems, and reseller Viewrun Co. Ltd. in South Korea sought to use LPR for the Ulju-gun surveillance project. In its most basic terms, LPR consists of license plate recognition software that interfaces with video management system (VMS) software and IP-based surveillance cameras positioned to view license plates. The LPR software “reads” a license plate and is able to convert the image to text.
License plate recognition systems typically use one camera per lane to view license plates on passing vehicles. The installing dealer for the Ulju-gun surveillance project, Daesung Net Co., Ltd., was looking to reduce costs without compromising system performance. The systems integrator also wanted superior image quality, high resolution, acceptable video in minimum illumination situations and easy installation.
Download the case study and read the solution below.