有限角度下的实验室隐蔽固件非视域激光检测方法  

Optical image radial distortion method based on optical fiber probe

作　　者：裴慧华 韦小铃 甘运刚 PEI Huihua;WEI Xiaoling;GAN Yungang(Beibu Gulf University,Qinzhou Guangxi 535011,China)

机构地区：[1]北部湾大学,广西钦州535011

出　　处：《激光杂志》2023年第9期209-214,共6页Laser Journal

基　　金：广西自然科学基金项目(No.2020GXNSFAA297233);北部湾大学本科教学工程项目(No.22JGA019);钦州市科学研究与技术开发项目(No.20221914)。

摘　　要：受到反馈图像背景杂波的影响,隐蔽固件检测准确率较低,偏差率较高,由此,提出有限角度下的实验室隐蔽固件非视域激光检测方法。基于非视域成像原理,结合ToF数据构建非视域场景图像,应用ToF直方图了解非视域物体投影过程,掌握隐蔽固件的散射信息,重构非视域图像,利用背景灰度低于隐蔽固件灰度值的特点,分解图像块,匹配每个集合的梯度数量和幅值,提取满足梯度区域划分的区域,准确检测实验室的隐蔽固件。实验结果表明,所提方法在实行实验室隐蔽固件检测时,检测到15个隐蔽固件,偏差率较低,平均值为1.82,三维图像背景杂波接近0,受图像背景杂波影响较小,可以准确检测到实验室内的隐蔽固件。Influenced by the background clutter of the feedback image,the detection accuracy of the concealed firmware is low and the deviation rate is high.Therefore,a non field of view laser detection method for the laboratory concealed firmware under limited angles is proposed.Based on the principle of non field of view imaging,combined with ToF data,a non field of view scene image is constructed.The ToF histogram is used to understand the projection process of non field of view objects,master the scattering information of hidden firmware,reconstruct the non field of view image,use the characteristics that the background gray is lower than the gray value of hidden firmware,decom-pose the image block,match the gradient number and amplitude of each set,extract the area that meets the gradient area division,and accurately detect the hidden firmware in the laboratory.The experimental results show that the pro-posed method can detect 15 hidden firmware in the laboratory when implementing the detection of hidden firmware in the laboratory,with a low deviation rate,the average value is 1.82,and the background clutter of the 3D image is close to 0,which is less affected by the background clutter of the image,so it can accurately detect the hidden firm-ware in the laboratory.

关 键 词：有限角度 非视域 激光检测 隐蔽固件 背景杂波 

分 类 号：TN247[电子电信—物理电子学]