立体视觉三维测量系统中的数据获取技术  

Data Acquiring Technique in 3D Measurement System Based on Stereo Vision

作　　者：吴剑波[1] 李明鸣[1] 赵宏[1] 谭玉山[1] 

机构地区：[1]西安交通大学激光与红外研究所,西安710049

出　　处：《仪器仪表学报》2001年第z1期216-217,共2页Chinese Journal of Scientific Instrument

摘　　要：提出了一种快速获得物体精确三维数据的新方法。该方法把三维视觉中的主动式与被动式数字化技术相结合 ,以立体视觉为原理 ,辅助以主动式密集结构投影光 ,有效地解决了立体测量的对应点匹配问题。主要针对该系统中的从图像数据获取技术 ,结合图像后续细化即实现图像目标边缘像素层层剥离的目的 ,提出采用基于图像目标边缘信息的小波边缘分析自动阈值法进行图像二值化 。Combining the active digitization technique with the passive one,a novel measuring method is proposed to acquire the high precision 3D data from 2D images.Based on the principle of stereo vision,and assisting the dense structure light active projecting,the measuring system overcomes the problem of data points matching occurring in stereo vision.The key technique of data acquiring is discussed here.And from the purpose of the image thinning,the wavelet transformation based on the edge information of image object is proposed to auto get the threshold for image segment.Theory and algorithm are given and the experiment result shows the validity.

关 键 词：三维测量 立体视觉 图像二值化 小波变换 

分 类 号：TN91[电子电信—通信与信息系统]