摘要
在对偏振光进行Stokes参量法描述的基础上,用线偏振激光对六种不同材料的目标进行了主动成像实验。实验中,先分别用CCD1和CCD2接收水平偏振图像和竖直偏振图像,然后,根据两幅图像的平均灰度值IX和IY,算出了不同目标反射光的偏振度P。在此基础上,对绿色油漆覆盖的铁片和铜片进行目标识别实验,通过对偏振图像进行直方图均衡化处理,将两种不同材料的金属目标明显地识别出来。实验证明,偏振图像具有识别目标细节的能力,特别适合暗小目标的探测与识别。
Based on description of polarization laser with stokes parameter,active imaging experiment is taken on six targets of different stuff. In the course of experiment,level polarization image and vertical polarization image are incepted with two CCDs,then polarization degree of different targets using average grey of two images is calculated. At the same time, target identification experiment is carried out on iron and copper, which all covered with green paint, and identifies them from each other through equilibrium of grey histogram of polarization image. Polarization image can identify details of target and especially fit for detection and identification of dark and small objects is proved.
出处
《激光与红外》
CAS
CSCD
北大核心
2007年第2期108-110,共3页
Laser & Infrared
基金
广西壮族自治区科技厅基金资助(No.0639059)
关键词
激光技术
线偏振激光
主动成像
目标探测与识别
图像处理
灰度直方图
laser technology
linear polarization laser
active imaging
target detection and identification
image processing
grey histogram
