考虑各向异性光散射性的平滑运动图像激光标记算法  

Laser marking algorithm of smooth moving image considering anisotropic light scattering

作　　者：杨影 邱芬 潘舒 YANG Ying;QIU Fen;PAN Shu(Wuchang University of Technology,Wuhan 430223,China)

机构地区：[1]武昌理工学院,武汉430223

出　　处：《激光杂志》2021年第7期70-74,共5页Laser Journal

基　　金：湖北省教育厅青年基金项目(No.19YJC890033);中央高校基本科研业务费专项资金资助项目(No.2018-2y-134)。

摘　　要：传统的图像激光标记算法没有考虑各向异性光的散射性,影响标记精度,导致图像识别准确度较低,尤其在运动图像中,很难根据图像信息构建通用的运动模型。基于此,在考虑各向异性光散射性的基础上提出一种平滑运动图像激光标记算法。首先根据散射光的判断标准公式,确定标记平面的粗糙度;其次将室内场与室外场的各向异性目标级表达式转换为极化率张量的级数形式,并根据同次幂系数相等原理获取目标一次散射场,再借鉴各向异性粒子电磁波散射场内角谱情况,利用各向散射特性分析散射场轴向分量的角谱展开模式;最后在位平面标记法基础上完成运动图像的激光标记。仿真实验证明,所提方法标记位置较为准确,优于传统算法,具有良好的应用价值。The traditional image laser marking algorithm does not consider the scattering of anisotropic light,which affects the marking accuracy,resulting in low accuracy of image recognition,especially in moving images.It is not easy to build a general motion model based on image information.Based on this,a laser marking algorithm for a smooth moving image is proposed in this paper.Firstly,according to the standard formula of scattering light,the roughness of the marking plane is determined;secondly,the expression of the anisotropic target level of indoor and outdoor fields is transformed into the series form of the polarizability tensor,and the primary scattering field of the target is obtained according to the principle of the same power coefficient.The internal angular spectrum of the electromagnetic scattering field of anisotropic particles is analysed by using the anisotropic scattering characteristics.Finally,the laser marking of the moving image is completed based on the in-situ plane marking method.The simulation results show that the proposed method is more accurate than the traditional algorithm and has good application value.

关 键 词：各向异性光 散射性 平滑运动图像 激光标记算法 角谱展开 

分 类 号：TN249[电子电信—物理电子学]