一、前言随着网络视频监控技术的飞速发展,客户对于视频监控产品的要求也在不断提高,如功能要求更加完善、工作要求更加稳定、图像要求更加清晰等等。同时,在商场、公园、游乐场等监控场所,如何看清一个人的面部特征和行驶车辆的牌照?在拥挤喧闹的火车站、体育场馆、广场等开阔区域,如何能够扩大监控覆盖范围? I. Introduction With the rapid development of network video surveillance technology, the requirements of customers for video surveillance products are constantly improving. For example, the functional requirements are more perfect, the requirements for work are more stable, the image requirements are clearer, and so on. At the same time, how to see the facial features of a person and the license plate of a driving vehicle in shopping malls, parks, playgrounds and other monitoring places? How to expand the monitoring coverage in open areas such as busy railway stations, stadiums and plazas?