基于最优分区搜索法的线结构激光成像方法研究  

Imaging method of line structure laser using optimal partition search

作　　者：李晓春[1] 单梁[1] 李军[1] 

机构地区：[1]南京理工大学自动化学院,江苏南京210094

出　　处：《南京理工大学学报》2015年第6期680-685,共6页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(61203009)

摘　　要：为了提高三角法测距成像中光线像素点提取的准确性,该文根据三角法测距原理推导了一种基于线结构激光的测距成像系统的物理模型,并给出了激光照射点在三维空间中的坐标公式。针对复杂背景下光线的提取,提出了一种基于最优分区搜索的算法,即在确定目标区域后仅在区域附近运用改进的灰度重心法提取光线中心点像素。实验结果显示,该设计模型及提取算法能够有效减少环境中噪声的影响,真实复现三维空间场景。In order to improve the accuracy of the light pixel point extraction in the triangulation method,a physical model of the ranging and imaging system is deduced based on the line structure laser according to the triangulation ranging principle. A coordinate formula of the laser point in the three dimensional（ 3-D） space is given. A new method is proposed based on optimal partition search for the light extraction of the complex environment,the line center pix is extracted nearby the target area using the gray center approach after determining the area. Experimental results show that this model and the extraction method can reduce the influence of the environment effectively and reproduce the three-dimensional scene truly.

关 键 词：最优分区搜索法 线结构激光 三角法测距 测距成像系统 灰度重心法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]