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[18]Meyer P B。Yount K R Contaminated LandReclamation,Redevelopment and Reuse in the United States and the European Union [J].IEEE Visualization 1995,9(12):12211227. 12 原文 對(duì)照： 3 d laser scanning technology application research in land reclamation 3D laser scanning technology is a new technology of Surveying and mapping, known as the real copy technology, is the field of Surveying and mapping, GPS development after yet another technological revolution, with the traditional measuring technology of 3D laser scanner, introduced the basic principle, technical characteristics, and the traditional measurement technology advantage, especially in the aspects of data collection, has the advantages of high efficiency, quick, accurate, reliable, has been widely applied in various fields of industry of Surveying and mapping. This paper discusses the 3D laser scanning technology in land reclamation areas of the advantages and disadvantages, and the Swiss Leica 3D laser scanner and the data processing software of Cyclone operations research. The settlement monitoring, earthwork in areas such as research shows, the 3D laser scanning technology in land reclamation area plays an indispensable role in the development of our country, it has profound significance for the land reclamation. Keywords: laser scanning land， reclamation， Subsidence monitoring， mappin Chapter 1 miotheory introduction In recent years, as measured in the field of service constantly broaden, and 3 d design and manufacture requirement for accuracy of measurement, the traditional coordinate measuring instrument, such as total station and cross section instrument can not satisfy the high precision 3 d coordinates acquisition and pared to the traditional measuring technology of reverse engineering, 3 d laser scanning technology has a great advantage, especially in the aspect of data collection, with efficient, fast, accurate, convenient wait for a characteristic, is widely applied in various fields of 3 d laser scanning technology. 13 research background and significance At present, our country economy from the rapid development into sustained and stable growth, our understanding of economic development has transformed the single pursuit of economic growth for the unification of the economic, environmental and social coordinated development. The state and society on the improvement of the ecological environmental quality is being more and more attention. Land development and consolidation has been increasingly important, 3 d laser scanning as another technology revolution in the field of surveying and mapping, 3 d modeling techniques play an important role in the field of land reclamation. Chapter 2, 3 d laser scanning technology and application 3 d laser scanning technology 3 d laser scanning technology is a new technology of surveying and mapping, surveying and mapping is once again after the GPS technology in the field of technological revolution. It is from the traditional measuring technology of surveying and mapping and integration through sophisticated sensor technology and a variety of modern hightech means integration, which is the generalization of the traditional surveying and mapping technology to the variety and integration. system position 3 d laser scanning system generally consists of scanner (puter) and the power supply system, controller of three parts. Laser scanner itself consists of laser ranging system and the laser scanning system, but also integrated CCD and instrument calibration and internal control system, etc. working principle 3 d laser scanning measurement of surveying and mapping technology content is high 14 precision measuring target39。 Traditional threedimensional 3 d laser scanning measurement of surveying and mapping technology content is high precision measurement of target in the whole threedimensional structure and the spatial threedimensional features, as well as all technical applications and services based on 3 d model。 While the latter can only measure the anchor point data and mapping between different anchor point of simple geometry, such as: length, distance, the deformation and displacement of point, etc. 3 d laser scanning measuring principle: every scan cloud point measurement is based on the principle of triangulation, and based on laser scanning sensing automatic stepping driving the direction of the 3 d measurement. Triangle measuring principle is implemented through laser beam from the laser beam through the viewfinder (triangle first corner) launched into target, forming the light Angle of the second point (triangle), and then by CCD (third Angle triangle point) accept target on the spot, in the end, based on the two points of view and a triangle bottom calculated the distance between target depth of field (Y), then after moving laser beam of light spot of displacement Angle difference of Z and Y coordinates are calculated, the X coordinate. See figure 4. Lies in the role of reflector laser beams horizontal deflection, surveying and mapping 15 function t