针对公路信息系统建设中数据生产成本、数据精度和生产效率问存在重要矛盾的问题,作者采用车载激光扫描方式快速获取公路及其两侧地物高精度三维表面信息,根据公路自身形态结构特征及其在车载激光扫描数据表达中的特点,实现了公路边界信息的自动提取、路面上车辆信息的自动探测与去除以及空洞的自动填补,并实现路面信息和公路边坡信息的快速获取。试验证明作者提出的方法具有较高精度和较强适应性,为解决数据生产中的矛盾指出一个新途径。
In order to solve the eonfliction among cost, precision, and efficiency of data production in building road information systems, the author provides a new method called vehicle-borne laser scanning to acquire road information. With this method, the in- formation of road boundary, road surface and engineering slope is extracted. Test result shows that this method is accurate and robust, and it provides a new way for the confliction solving in data production.