激光扫描技术是以激光扫描仪为核心发展迅速的一种新型空间数据获取手段。利用低成本的二维激光扫描仪实现针对目标物体的三维重建，为此对基于二维激光扫描技术的三维重建过程中所涉及的相关技术进行了研究分析，为后续开展三维重建的实验研究奠定理论基础。同时在构建基于二维激光扫描仪（LMS291）的三维重建实验系统的基础上，研究分析了LMS291在平动和转动两种不同工作模式下的工作特点并通过Matlab编写程序进行数据处理，利用Matlab和Fledermaus软件生成三维重建效果图，得出并分析了重建结果。通过以上内容验证了构建的模型和所用方法的可行性及工作系统的可靠性，对进一步展开相关研究具有一定意义。

Laser scanning technology has developed rapidly in recent years as a new type of space data acquisition means, and the laser scanner is the hardware core of this technology. The three-dimensional (3D) reconstruction of the target object is achieved by the use of a low cost two-dimensional (2D) laser scanner, in the purpose of which, the technology involved in 3D reconstruction process, based on the technology of laser scanning, is studied and analyzed especially on the basic principles and processes of the data process and 3D reconstruction, form the theory, stabling the theoretical basis for the following experimental study. On the basis of 3D reconstruction experimental system, LMS291 as a core, work characteristics of LMS291 in two different operating modes are studied and analyzed. On the other hand, with the help of programming written by Matlab, data processing can be done and 3D reconstruction figures can be generated by Matlab and Fledermaus. What′s more, 3D reconstruction of the scan target effects are obtained and analyzed. Above all, the feasibility and reliability of the model constructed and the methods used of the system have been verified.