一种医用纤维内窥镜综合镜体光效自动检测方法  

Method for automatically detecting light effect of comprehensive mirror body of medical fiber endoscope

作　　者：李壮壮 向阳[1] 安卫东 黄雷 刘林 LI Zhuangzhuang;XIANG Yang;AN Weidong;HUANG Lei;LIU Lin(College of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130022,China;Jilin Provincial Key Laboratory of Metrology and Testing Instruments and Technology,Jilin Institute of Metrology Science and Technology,Changchun 130103,China)

机构地区：[1]长春理工大学光电工程学院,吉林长春130022 [2]吉林省计量科学技术研究院,吉林省计量测试仪器与技术重点实验室,吉林长春130103

出　　处：《应用光学》2024年第5期1001-1007,共7页Journal of Applied Optics

基　　金：吉林省科技厅重点研发项目(20220204114YY)。

摘　　要：医用纤维内窥镜已应用于各种医疗领域,其综合镜体光效的水平会影响所接收到图像的质量,从而导致医护人员无法准确判断病灶情况。为快速有效评价纤维内窥镜在临床使用下的综合镜体光效,提出一种基于图像处理的自动检测方法。通过内窥镜光源照射高反射率标准白板,对CCD相机采集到的内窥镜图像进行图像处理,提取90%视场处和视场中心的灰度值的比值作为边缘各点综合镜体光效,并进一步计算出内窥镜总体综合镜体光效。根据设计方法对2支纤维内窥镜进行了10组重复实验,并与生产商标称值进行对比分析,同时计算不确定度以及分析误差来源,验证了所设计方法的可行性。Medical fiber endoscopes have been applied in various medical fields,and the overall light effect level of fiber endoscopes can affect the quality of the received images,leading to medical staff being unable to accurately judge the condition of the lesion.To quickly and effectively evaluate the comprehensive mirror body light effect of fiber endoscopes in clinical use,an automatic detection method based on image processing was proposed.The high reflectivity standard whiteboard was illuminated by the endoscope light source,and the endoscope images collected by the CCD camera were processed.The ratio of the gray values at 90%of the field of view to the center of the field of view was extracted as the comprehensive body light effect of each edge point,and the overall comprehensive body light effect of the endoscope was further calculated.According to the design method,10 sets of repeated experiments were conducted on 2 fiber endoscopes,and compared with trademark values of the manufacturer.At the same time,the uncertainty was calculated and the source of error was analyzed,verifying the feasibility of the designed method.

关 键 词：医用纤维内窥镜 综合镜体光效 图像处理 自动检测 

分 类 号：TN209[电子电信—物理电子学] TH741[机械工程—光学工程]