Three-dimensional endoscopic imaging system based on micro-lithography mask structured light projection

被引:0
|
作者
Huo, Jiayi [1 ]
He, Jiaying [1 ]
Zhou, Jiayao [1 ]
Yuan, Bo [1 ]
Ni, Xuxiang [1 ]
Wang, Liqiang [1 ]
机构
[1] Zhejiang Univ, Coll Opt Sci & Engn, 38 Zheda Rd, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
Endoscopy; 3D-imaging; Optical design; Image processing;
D O I
10.1016/j.optcom.2024.131295
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
To achieve effective in-situ endoscopic diagnosis and treatment, the measurement of the size of lesions (such as tumors) and the characterization of their shape are important. However, the application of binocular endoscopy is still limited due to issues such as the lack of texture in some scenes, difficulty in matching, and large computational load. To address this, we have developed a 3D endoscopic imaging system based on microlithography mask structured light projection to measure the shape and size of targets within the endoscopic view. Firstly, a brand new mechanical design was implemented for the endoscope tip to integrate both white light and structured light channels. Then, a projection lens based on Q-type aspheric design and a microlithography mask based on the M-array were designed to achieve high contrast and high-resolution structured light projection in the endoscopic scene. Finally, by identifying feature points in the target and reference images, pixel matching and disparity calculation were achieved, allowing for 3D reconstruction. Our proposed 3D endoscopic imaging system was validated in a gastric model and a cervical model, where the model was reconstructed and compared with the ground truth, yielding mean RMSE of 0.20-0.31 mm at a working distance of about 40 mm, thus confirming the effectiveness of our system.
引用
收藏
页数:8
相关论文
共 50 条
  • [1] Cost-Effective Laboratory Matrix Projection Micro-Lithography System
    Galiullin, Arslan A.
    Pugachev, Mikhail V.
    Duleba, Aliaksandr I.
    Kuntsevich, Aleksandr Yu.
    MICROMACHINES, 2024, 15 (01)
  • [2] Three-Dimensional Footwear Print Extraction Based on Structured Light Projection
    Liu, Changjin
    Liu, Yongjiu
    Liu, Xiaonan
    Li, Lin
    2016 2ND IEEE INTERNATIONAL CONFERENCE ON COMPUTER AND COMMUNICATIONS (ICCC), 2016, : 685 - 689
  • [3] Three-dimensional multimodal medical imaging system based on freehand ultrasound and structured light
    Meza, Jhacson
    Contreras-Ortiz, Sonia H.
    Romero, Lenny A.
    Marrugo, Andres G.
    OPTICAL ENGINEERING, 2021, 60 (05)
  • [4] Face Feature Detection Based on Structured Light Projection Three-Dimensional Reconstruction
    Xia Chenxu
    Hao Qun
    Zhang Yiming
    Zhang Shaohui
    Li Fanfei
    Yang Zhihui
    Sun Jiankun
    LASER & OPTOELECTRONICS PROGRESS, 2023, 60 (22)
  • [5] Simple Calibration Method for Three-Dimensional Imaging System with Structured Light
    Zhang Han
    Bao Guoqi
    Liu Kai
    LASER & OPTOELECTRONICS PROGRESS, 2019, 56 (14)
  • [6] Research Progress on the Imaging of Three-Dimensional Mask for Extreme Ultraviolet Lithography
    Zhang Zinan
    Li Sikun
    Wang Xiangzhao
    LASER & OPTOELECTRONICS PROGRESS, 2022, 59 (09)
  • [7] A note on the structured light of three-dimensional imaging systems
    Hsieh, YC
    PATTERN RECOGNITION LETTERS, 1998, 19 (3-4) : 315 - 318
  • [8] MEMS-mirror-based dynamic structured light projection system for three-dimensional measurement with high precision
    Tao, Yihao
    Xue, Gaopeng
    Ding, Ning
    Zhou, Qian
    Ni, Kai
    Wang, Xiaohao
    Li, Xinghui
    OPTICAL METROLOGY AND INSPECTION FOR INDUSTRIAL APPLICATIONS VIII, 2021, 11899
  • [9] Three-dimensional imaging based on structured illumination
    Su, X. (xysu@scu.edu.cn), 1600, Science Press (41):
  • [10] Optical three-dimensional measurements by radially symmetric structured light projection
    Hartrumpf, M
    Munser, R
    APPLIED OPTICS, 1997, 36 (13): : 2923 - 2928