摘要
通过研究分析国内外经典的微扫超分红外图像采集方法、配准方法以及图像重建方法优缺点基础上,建立适用于测控系统和光学设备的红外微扫超分成像系统观测模型。实验装置选用像元尺寸为9.7μm、分辨率为1 280×1 024的PHTONIS XP相机;焦距为75mm、F数为1.8的光学系统;Z200M高精度压电微扫平台和CCBU20高频控制器为光学平台的执行机构;非均匀插值法实现超分辨图像的重建,生成1幅2 560×2 048分辨率的图像,分辨率提高了4倍。通过仿真计算和实际拍摄比对两种方式,验证本系统可以有效提高的红外图像分辨率,有微扫描传递函数值MTF明显高于无微扫描。
Based on the study and analysis of the advantages and disadvantages of the classical micro-scanning and supersharing image acquisition methods,registration methods and image reconstruction methods at home and abroad,an infrared micro-scanning and super-dividing image system observation model suitable for measurement and control systems and optical equipment is established.The PHTONIS XP camera with 9.7μm pixel size and 1 280×1 024 resolution was selected as the experimental device.Optical system with focal length of 75 mm and number of F of 1.8;Z200 Mhigh-precision piezoelectric micro-sweeping platform and CCBU20 high frequency controller are the actuators of the optical platform.The non-uniform interpolation method realizes the reconstruction of superresolved images,and generates an image with a resolution of 2 560×2 048,which is improved by 4 times.Through simulation calculation and actual shooting comparison,it is verified that the infrared image resolution of this system can be effectively improved,and the value of MTF of micro-scanning transfer function is significantly higher than that of non-micro-scanning.
作者
李霁
李桂芝
韩璐
Li Ji;Li Guizhi;Han Lu(Unit 44,Unit 9294l of PLA,Huludao 125001,China)
出处
《国外电子测量技术》
2020年第10期125-129,共5页
Foreign Electronic Measurement Technology
关键词
微扫描控制
超分辨率
图像重建
光学测量
micros-canning control
super resolution
image reconstruction
optical measurement
