Optimal illumination selection for structured light 3D endoscopy based on hyperspectral projection

被引：0
|
作者：
Chen, Xiaopeng [1 ]
Gao, Xingjun [1 ]
Yang, Qing [1 ,2 ,3 ]
Qi, Ji [1 ]
机构：
[1] Zhejiang Lab, Res Ctr Humanoid Sensing, Hangzhou, Peoples R China
[2] Zhejiang Univ, State Key Lab Extreme Photon & Instrumentat, Coll Opt Sci & Engn, Hangzhou, Peoples R China
[3] Zhejiang Univ, Int Res Ctr Adv Photon, Hangzhou, Peoples R China
来源：
OPTICS IN HEALTH CARE AND BIOMEDICAL OPTICS XIII | 2023年 / 12770卷
关键词：
Structured light; blurring; scattering; absorbing; hyperspectral projector; porcine tissue; optimal illumination; SURFACE RECONSTRUCTION;
D O I：
10.1117/12.2686446
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Structured light 3D surface imaging reconstructs the 3D surface shape of an object by analyzing the deformation of a projected structured-light pattern. The detection of the pattern is a crucial step in this technique, which can be affected by the blurring of the patterns due to tissue scattering and absorbing. In this study we experimentally investigate how the projected structured light based on hyperspectral projection. A hyperspectral projector is constructed to generate patterns of different wavelengths, bandwidth and densities. The projected structured light is tested on porcine tissue in vitro. The sharpness of all the patterns and property of tissue are evaluated. The results indicate that tissue-dependent wavelength of light with appropriate density of pattern yield optimal illumination which corresponds to 3D reconstruction accuracy for structured light 3D endoscopy.
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页数：10
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