特殊靶标图像的Otsu自适应双阈值分割法  

Special Target Image Segmentation Based on the Otsu Adaptive Dual-threshold Method

作　　者：王召利[1] 杨廷梧[1] 刘上乾[1] 卢泉[1] 白宏刚[2] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071 [2]武警工程学院基础部,陕西西安710086

出　　处：《电子科技》2010年第6期46-48,共3页Electronic Science and Technology

摘　　要：针对特殊管道弯曲度测量光斑的高精度定位要求,提出了一种特殊靶标图像的Otsu自适应双阈值分割法。介绍了基于准直激光管道弯曲度测量原理,先对特殊靶标图像进行处理,然后对整个图像灰度分布统计特性进行计算,建立起计算自适应双阈值的数学模型,从而实现特殊靶标图像自适应双阈值分割。实验结果表明,该方法具有较强的稳定性、实时性好、靶标图像分割效果较好,提高了光斑的定位精度。To meet the requirement for the precise center location of the laser spot on the complex target,a method based on the Otsu adaptive threshold is presented.The theory of camber measurement based on laser collimation is proposed.First,pre-processing for images obtained in camber measurement is made.Then gray distribution and statistical characteristics of the image are calculated.Finally,a mathematical model of the adaptive dual-threshold is established.And special target image segmentation based on the Otsu adaptive dual-threshold method is realized.Experimental results show that the method proposed is stable and accurate,the results of special target image segmentation are better than traditional methods and the precise center location of the laser spot on the complex target is increased.

关 键 词：弯曲度测量 Otsu自适应双阈值分割 特殊靶标 激光光斑 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]