Vein visualization enhancement by dual-wavelength phase-locked denoising technology  

作　　者：Lihua Ruan Zhiqin Yin Shibing Zhou Weibo Zheng Wei Lu Tao Zhang Shaowei Wang 

机构地区：[1]Shanghai Institute of Technical Physics,Chinese Academy of Sciences Shanghai 200083,P.R.China [2]State Key Laboratory of Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,P.R.China [3]Shanghai Engineering Research Center of Energy-Saving Coatings Shanghai 200083,P.R.China [4]University of Chinese Academy of Sciences,Beijing 100049,P.R.China [5]Shanghai Tech University,Shanghai 201210,P.R.China [6]School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,P.R.China [7]School of Information Science and Technology,ShanghaiTech University,Shanghai 201210,China

出　　处：《Journal of Innovative Optical Health Sciences》2024年第3期73-83,共11页创新光学健康科学杂志（英文）

基　　金：funded by National Key R&D Pro-gram of China(2021YFC2103300);National Key R&D Program of China(2021YFA0715500);National Natural Science Foundation of China(NSFC)(12227901);Strategic Priority Research Program(B)of the Chinese Academy of Sciences(XDB0580000);Chinese Academy of Sciences President's International Fellowship Initiative(2021PT0007).

摘　　要：Visual near-infrared imaging equipment has broad applications in various fields such as venipuncture,facial injections,and safety verification due to its noncontact,compact,and portable design.Currently,most studies utilize near-infrared single-wavelength for image acquisition of veins.However,many substances in the skin,including water,protein,and melanin can create significant background noise,which hinders accurate detection.In this paper,we developed a dual-wavelength imaging system with phase-locked denoising technology to acquire vein image.The signals in the effective region are compared by using the absorption valley and peak of hemoglobin at 700nm and 940nm,respectively.The phase-locked denoising algorithm is applied to decrease the noise and interference of complex surroundings from the images.The imaging results of the vein are successfully extracted in complex noise environment.It is demonstrated that the denoising effect on hand veins imaging can be improved with 57.3%by using our dual-wavelength phase-locked denoising technology.Consequently,this work proposes a novel approach for venous imaging with dual-wavelengths and phase-locked denoising algorithm to extract venous imaging results in complex noisy environment better.

关 键 词：DUAL-WAVELENGTH phase-locked denoising vein visualization enhancement. 

分 类 号：TN21[电子电信—物理电子学]