基于显微光学成像的微细纤维测量识别系统光源优化研究

doi:10.3969/j.issn.1000-1158.2020.06.10

摘要
图/表
参考文献(15)
相关文章 (15)

全文: PDF (1433 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要显微光学成像的纤维识别系统的照明光源,对成像质量有很大影响。由于单个LED光源发光功率有限,且在照射面的光分布不均,导致系统采集到的微纳米级纤维(单丝平均直径15～40μm)图像模糊,影响测量与识别结果的准确性。根据LED的光学特性,对系统的照明光源进行优化设计,设计了3种不同的LED平面光源阵列,并根据LED阵列光源在照射面上的照度表达式,仿真模拟给出LED阵列的照度分布,并以实验进行验证,对系统实际检测的图像进行图像识别处理和图像参数峰值信噪比评价,给出优化结果。研究结果表明,优化后的LED平面光源阵列有效地解决了照度不均导致的微细纤维图像模糊识别不清的问题,优化后得到的纤维样品图像边缘清晰,有效提高了系统检测纤维样品的图像质量,为微细纤维测量识别与研究提供了新的途径。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	郑之远
	俞晓磊
	刘振鲁
	赵志敏

关键词 ：计量学, 显微光学成像, 纤维测量识别系统, LED光源阵列, 峰值信噪比

Abstract：The illumination source of the microscopic optical imaging fiber recognition system has a great influence on the imaging quality. Due to the limited luminous power of a single LED light source and uneven light distribution on the illuminated surface, the micro-nano fiber (average diameter of monofilament 15~40μm) collected by the system was blurred, which affected the accuracy of measurement and recognition results. According to the optical characteristics of LED, the illumination source of the system was optimized. Three different LED planar light source arrays were designed. According to the expression of the illuminance of the LED array on the illuminated surface, the simulation showed the LED array. The illuminance distribution was verified by experiments. The image recognition process and the peak signal-to-noise ratio (PSNR) of the image parameters were evaluated for the images actually detected by the system, and the optimization results were given. The research results showed that the optimized LED planar light source array effectively solved the problem of unclear blur recognition of microfibril images caused by uneven illumination. The image of the fiber sample obtained after optimization was clear, which effectively improved the image quality of the system for detecting fiber samples, and this provided a new way for microfiber measurement identification and research.

Key words： metrology microscopic optical imaging fiber measurement system LED light source array peak signal-to-noise ratio

收稿日期: 2019-05-08 发布日期: 2020-06-08

PACS:

TB96

基金资助:国家自然科学基金(61771240);江苏省湖泊环境遥感技术工程实验室开放基金(JSLERS-2018-003)

通讯作者: 俞晓磊(1981-),男,江苏南京人,江苏省质量和标准化研究院高级工程师,研究方向为物联网信息处理。Email: nuaaxiaoleiyu@126.com E-mail: nuaaxiaoleiyu@126.com

作者简介: 郑之远(1994-),男,河南鹤壁人,南京航空航天大学硕士研究生,研究方向为光测技术与信息处理。Email: 1284810676@qq.com

引用本文:

郑之远,俞晓磊,刘振鲁,赵志敏. 基于显微光学成像的微细纤维测量识别系统光源优化研究[J]. 计量学报, 2020, 41(6): 689-695.
ZHENG Zhi-yuan,YU Xiao-lei,LIU Zhen-lu,ZHAO Zhi-min. Research on Light Source Optimization of Microfiber Measurement and Recognition System Based on Micro-optical Imaging. Acta Metrologica Sinica, 2020, 41(6): 689-695.

链接本文:

http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2020.06.10 或 http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2020/V41/I6/689

［1］赵静. 羊绒混纺产品检测现状及展望［J］. 轻纺工业与技术, 2017, 46(4): 65-66.
Zhao J. Current situation and Prospect of testing cashmere blended products ［J］. Textile industry and technology, 2017, 46 (4): 65-66.
［2］钟仁辉, 韩震宇. 利用线阵LED与平凸柱面透镜实现条形光源［J］. 山东工业技术, 2018, (17): 224-225.
Zhong R H, Han Z Y. Using linear LED and flat convex cylindrical lens to realize strip light source ［J］. Shandong Industrial Technology, 2018, (17): 224-225.
［3］熊兴. 基于LED阵列照明的定量相位显微成像原理技术研究［D］. 成都:电子科技大学, 2018.
［4］宋宁亮, 王亚军, 罗秉东, 等. LED阵列模式的优化研究［J］. 光电技术应用, 2012, 27(3): 54-58.
Song N L, Wang Y J, Luo B D, et al. Optimizing the mode of LED array ［J］. Application of photoelectric technology, 2012, 27 (3): 54-58.
［5］孔祥伟. 基于反馈式多光谱成像的纱线颜色测量研究［J］. 计量学报, 2019, 40(1): 91-96.
Kong X W. Research on yarn color measurement based on feedback multispectral imaging ［J］. Acta Metrologica Sinica, 2019, 40 (1): 91-96.
［6］侯启真, 薛荣荣, 王洁宁. LED阵列发光特性仿真和对比分析［J］. 液晶与显示, 2017, 32(12): 961-967.
Hou Q Z, Xue R R, Wang J L. Luminescent characteristics simulation and comparative analysis of LED arrays ［J］. LCD and display, 2017, 32 (12): 961-967.
［7］胡海蕾. LED照明光学系统的设计及其阵列光照度分布研究［D］. 福州:福建师范大学, 2005.
［8］霍彦明, 吴淑梅. 基于照明的LED阵列研究与仿真［J］. 发光学报, 2009, 30(4): 436-440.
Huo Y M, Wu S M. Research and Simulation of LED arrays based on lighting ［J］. Journal of Luminescence, 2009, 30 (4): 436-440.
［9］Moreno I, Avendao-Alejo M, Tzonchev R I. Designing light-emitting diode arrays for uniform near-field irradiance ［J］. Applied Optics, 2006, 45(10): 2265-2272.
［10］赵芝璞, 季凌燕, 沈艳霞, 等. 基于PSO粒子群算法的LED照明系统光照均匀性研究［J］. 发光学报, 2013, 34(12): 1677-1682.
Zhao Z P, Ji L Y, Shen Y X, et al. Study on illumination uniformity of LED lighting system based on PSO particle swarm optimization ［J］. Journal of Luminescence, 2013, 34 (12): 1677-1682.
［11］刘沁, 刘启能. LED大型圆形阵列的光斑照度均匀性［J］. 人工晶体学报, 2018, 47(1): 213-218, 230.
Liu Q, Liu Q N. Uniformity of spot illumination of large circular LED arrays ［J］. Journal of Intraocular Lens, 2018, 47(1): 213-218, 230.
［12］吕善模, 张保国. 国外羊毛试验方法标准综述之三——纤维直径试验方法［光学纤维直径分析仪(OFDA)法］(续) ［J］. 中国纤检, 2002, (7): 44-46.
Lu S M, Zhang B G. Overview of foreign wool testing methods and standards-Fiber Diameter Test Method ［Optical Fiber Diameter Analysis Instrument (OFDA) Method］ (continued) ［J］. China Fiber Inspection, 2002, (7): 44-46.
［13］Hurling R, Rodell J B, Hunt H D. Fiber diameter and fish texture ［J］. Journal of Texture Studies, 1996, 27(6): 679-685.
［14］陆永良, 尹丽华, 袁寅瑕. OFDA纤维直径分析仪在羊绒纤维直径测试中的应用［J］. 毛纺科技, 2014, 42(10): 48-52.
Lu Y L, Yin L H, Yuan Y B. Application of OFDA Fiber Diameter Analyser in Cashmere Fiber Diameter Measurement ［J］. Wool Textile Technology, 2014, 42 (10): 48-52.
［15］肖祥元, 景文博, 赵海丽. 基于峰值信噪比改进的图像增强算法［J］. 长春理工大学学报(自然科学版), 2017, 40(4): 83-92.
Xiao X Y, Jing W B, Zhao H L An improved image enhancement algorithm based on peak signal-to-noise ratio ［J］. Journal of Changchun University of Technology (Natural Science Edition), 2017, 40 (4): 83-92.