摘要
文章介绍了一套由ICCD相机、光学预处理单元、图像采集卡和计算机构成的末制导炮弹激光光斑图像监视系统。此系统以CCD图像传感器作为光斑定位器件,并在VC++中调用Matlab程序用重心法求光斑位置。在此基础上,根据人眼对不同灰度级的分辨能力非常有限而对色彩却相当敏感的视觉特性,利用伪彩色技术将激光光斑的256级灰度图像变换为连续变化的伪彩色图像,并通过空间灰度差值运算将离散的图像数据生成光斑的彩色三维模型, 实现了激光光斑能量分布结构的三维可视化,以反映光斑不同区域能量分布的相对大小和位置,而且可以进行3D坐标变换,以进一步方便人们从各个角度观察激光能量分布结构。这为光束质量的评价提供了重要依据。
In this paper, an electronic beam profile was set up. This system is composed of ICCD device, optic preconditioning unit, visual card, computer and other aids. As a kind of laser-positioning system, the system collects the facula image by CCD image sensor. When Maflab programs are loaded in VC ＋ ＋ ,the precise position of the facula can be worked out with center of gravity method. In general, the image of laser facular is a gray picture. But the ability of human eyes to discern different grayness is poor. So it＇s difficult for ones to make the best use of the information existed in laser spot picture. Fortunately, human eyes are good at recognizing different colors. According to this characteristic, by using nonlinear pseudo -color transform,the 2D and 3D visualizations of laser spot＇s energy distribution are realized in this paper.
出处
《激光与红外》
CAS
CSCD
北大核心
2006年第2期88-91,共4页
Laser & Infrared
关键词
激光光斑
激光末制导炮弹
能量分布
laser facula
laser terminal guidance ammunition
intensity distribution
