The construction quality control of hull blocks is of great significance for shipbuilding. The total station device is predominantly employed in traditional applications, but suffers from long measurement time, high labor intensity and scarcity of data points. In this paper, the Terrestrial Laser Scanning (TLS) device is utilized to obtain an efficient and accurate comprehensive construction information of hull blocks. To address the registration problem which is the most important issue in comparing the measurement point cloud and the design model, an automatic registration approach is presented. Furthermore, to compare the data acquired by TLS device and sparse point sets obtained by total station device, a method for key point extraction is introduced. Experimental results indicate that the proposed approach is fast and accurate, and that applying TLS to control the construction quality of hull blocks is reliable and feasible.

船体砌块的施工质量控制对造船具有重要意义。全站仪设备主要用于传统应用中，但测量时间长，劳动强度大和数据点稀缺。在本文中，利用地面激光扫描（TLS）装置来获得高效，准确的船体砌块综合构造信息。为了解决配准问题，即在比较测量点云和设计模型时最重要的问题，提出了一种自动配准方法。此外，为了比较TLS设备获取的数据和全站仪获取的稀疏点集，提出了一种关键点提取方法。实验结果表明，该方法是快速，准确的，