CAJ | 학술논문

针对激光主动探测时光电设备表现出的猫眼效应，搭建了基于CCD的激光主动探测系统，提出了一套有效的光电窥视设备检测算法。该算法在激光脉冲的间隔，同时采集激光主被动图像，根据窥视目标与普通漫反射物体的回波强度差异，利用背景差法检测窥视目标。实验结果表明，在半径为5m的作用范围内，该激光主动探测系统可有效、快速地将光电窥视目标从背景中检测出来，并且不受场景和光照的限制。通过对光学口径为2 mm的光电窥视设备在20个不同场景环境下进行实验，正确检测率达到95％，且每帧的检测时间在0.015～0.021 s内，满足了实时性需求，验证了本文系统搭建方案的正确性与软件处理算法的有效性。
침대격광주동탐측시광전설비표현출적묘안효응，탑건료기우CCD적격광주동탐측계통，제출료일투유효적광전규시설비검측산법。해산법재격광맥충적간격，동시채집격광주피동도상，근거규시목표여보통만반사물체적회파강도차이，이용배경차법검측규시목표。실험결과표명，재반경위5m적작용범위내，해격광주동탐측계통가유효、쾌속지장광전규시목표종배경중검측출래，병차불수장경화광조적한제。통과대광학구경위2 mm적광전규시설비재20개불동장경배경하진행실험，정학검측솔체도95％，차매정적검측시간재0.015～0.021 s내，만족료실시성수구，험증료본문계통탑건방안적정학성여연건처리산법적유효성。
Based on the cat-eye effect of photoelectric devices, this paper establishes a system of active laser detection with CCD, and puts forward an effective algorithm for detecting peeping devices.The proposed algo-rithm acquires one image when the laser power is on, and the other image when the laser power is off in the la-ser pulse interval.According to the echo intensity difference on the peeping devices and usual objects, the tar-get is detected by using the background difference method.The experimental results show that, within a radius of 5 m, the system can effectively and quickly detect peeping devices from background, and is not influenced by the scene and light.Through the experiments on 20 different scenes, the correct detection rate is 95%, and the detection time of each frame is in the range of 0.015-0.021 s, meeting the demand of real-time de-tection, which validate the correctness and effectiveness of this system.