基于时间相位对三维物体面形的测量讲述.doc

分类号：--------- U D C：******-***-(20**)****-0 密 级：公 开 编 号：******* **********大学 学位论文 基于时间相位展开法对三维物体的面形测量 论文作者姓名： 申请学位专业： 申请学位类别： 指导教师姓名（职称）： 论文提交日期： 基于时间相位展开法对三维物体的面形测量 摘 要 随着三维测量技术的不断发展，通过投影拍摄结构光条纹对三维物体进行测量已经成为近年以来的研究热点。主要研究了基于时间相位展开法的对三维物体面形的测量，详细阐述了其实现原理并推导了展开相位与实际物体高度之间的几何映射关系。分析了三频法和外差法的特点并使用三频外差法来进行研究：外差法展开条纹集中在高频部分从而保证了拟合精度的可靠性，三频法仅用3套条纹做时间相位展开，效率很高。并且使用了计算机模拟了实验对三频外差相位展开法进行了验证，实验结果证明了该方法的有效性。对三维物体面形的测量在未来是人们要研究的主要课题之一，具有很高的市场价值，是一个值得去关注和研究的方向。 关键词：相位展开；时间相位展开；三频外差法 Surface shape measurement of three dimensional object based on time phase unwrapping method Abstract With the development of three-dimensional measurement techniques, shooting through the projection of structured light stripe three-dimensional objects to be measured it has become a hot topic in recent years since. The main study of the temporal phase expansion method based on measurement of the surface shape of three-dimensional objects, elaborated its principle and deduce geometric expansion phase and the actual mapping between object height between. Analyzes the characteristics of tri-band method and the heterodyne method using tri-band heterodyne method to study: heterodyne fringe concentrated in the high frequency part of the expansion so as to ensure the reliability of fitting precision, tri-band method only three sets of stripes do time phase unwrapping, high efficiency. And the effectiveness of the use of computer simulation experiments tri-band heterodyne phase expansion method was validated experimental results show the method. Measurement of the surface shape of three-dimensional objects in the future is one of the main topics to be studied people with high market value, it is worth to pay attention to the direction and research. Key words: phase unwrapping; time phase unwrapping; tri-band heterodyne 目 录 论文总页数：16页 1 引言 1 1.1 课题背景及意义 1 1.1.1 研究背景 1 1.1.2 研究意义 1 1.2 研究现状及发展趋势 2 1.3 相关理论以及基本原理 2 1.5 时间