论文部分内容阅读
地面三维激光扫描系统测量精度评估和检定对于点云数据质量和工程应用成果质量控制至关重要。本文利用徕卡高精度全站仪对固定在北京市标准长度基线场检定基柱上的平面靶标进行照准测量,建立了靶标间相对距离基准,与扫描仪对靶标扫描测量的距离结果比对,评估了扫描系统的点位测量精度;对沈阳火车站古建进行了扫描测量,利用扫描精细的点云数据和丰富细致的纹理信息重建了三维立体模型,绘制古建立面图、俯视图和剖面图,量测古建内部空间位置关系数据,为古建保护和修复重建提供了可靠依据。
Surface 3D laser scanning system measurement accuracy assessment and verification of point cloud data quality and engineering application of quality control is essential. In this paper, the Leica precision total station was used to measure the collimation of the plane target fixed on the benchmark base of Beijing standard length baseline field, the relative distance between the targets was established, and the distance between the target and the scanner was compared. The accuracy of point measurement of the scanning system was evaluated. The ancient building of Shenyang Railway Station was scanned and measured. The three-dimensional model was reconstructed by scanning the fine point cloud data and rich and detailed texture information, and the ancient building elevation, top view and section view were drawn , Measuring the location data of ancient interior space, which provides a reliable basis for ancient building protection and restoration.