医用电子内窥镜MTF成像能力检测系统研究  

Research on MTF Imaging Capability Detection System for Medical Electronic Endoscopes

作　　者：陈炜豪 邱震 雷亮[1,2] CHEN Wei-hao;QIU Zhen;LEI Liang(School of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China;Guangdong Provincial Key Laboratory of Information Photonics Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学物理与光电工程学院,广东广州510006 [2]广东省信息光子技术重点实验室,广东广州510006

出　　处：《光学与光电技术》2025年第1期117-122,共6页Optics & Optoelectronic Technology

基　　金：国家自然科学基金(62006046)资助项目。

摘　　要：介绍了一种基于人工检测电子内窥镜所改良的MTF测量装置测量方法,采用直接检测分辨率板成像对比度比较值的方法,求取反映光学系统成像本领的调制传递函数,整个过程采用自动一体的图像处理技术完成。实验数据以及安装在产线上的施行效果反映,人工检测目测法与本测量装置的检测法合格率分别为96%和94%,7.87~12.5 lp·mm^(-1)空间频段的MTF曲线与设计镜头理论曲线更为符合,验证了本文所提出的方法的有效性。该装置有助于降低人为误差、显著提高生产效率。With the rapid development of modern medical technology,electronic endoscopes are applied to the diagnosis and treatment of diseases in the body,and the accurate measurement of their optical imaging performance is of great significance.This article introduces an improved MTF measurement device and its method based on manual detection of electronic endoscopes.The method uses direct detection of resolution plate imaging contrast comparison values to obtain the modulation transfer function that reflects the imaging ability of the optical system.The entire process is completed using automatic integrated image processing technology,which has become the core and effective main component of the optoelectromechanical integration system.The experimental data and the implementation effect installed on the production line reflect that the qualification rates of the manual inspection visual method and the detection method of this measuring device are 94%and 96%,respectively.The MTF curve of the 7.87~12.5 lp·mm-1spatial frequency band is more consistent with the theoretical curve of the designed lens,which verifies the effectiveness of the method proposed in this paper.The use of the production helps to reduce human error and significantly improve production efficiency.

关 键 词：电子内窥镜 对比传递函数 调制传递函数 自动化检测系统 图像处理 

分 类 号：TN386.5[电子电信—物理电子学]