Development of vessel position estimation system based on pixel-wise refocusing using light field imaging
Development of vessel position estimation system based on pixel-wise refocusing using light field imaging
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开发基于光场成像逐像素重聚焦的血管位置估计系统
DOI：
10.1117/12.2536519
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Yamada Kenji
中科院分区：
文献类型：
--
作者：
Yoshimoto Kayo;Takahashi Hideya;Yamamoto Kohei;Yamada Kenji
静脉穿刺是一种通常在医院进行的医疗实践。然而，这是一个困难的过程，因为有许多穿刺失败的情况发生，有时还发生神经损伤和血管损伤等医疗事故。这是由于视觉识别血管的困难造成的。虽然血管的深度信息也很重要，但临床实践中现有的系统只能通过二维图像来可视化血管。在我们之前的工作中，我们提出了一种使用光场成像向基于重聚焦的系统添加角度过滤来估计血管的三维位置的方法。由于生物组织的强散射特性，角度滤波可以减少使用红外光获得的血管图像的模糊。通过将重聚焦技术应用于减少了模糊的图像，可以使用每个深度处的近红外光来获得增强的血管横截面信息。然而，在之前的研究中，仅报道了幻体模型结果，无法研究实用性。在本文中，我们报告了将所提出的方法应用于人手并验证其有效性的结果。
Venipuncture is a medical practice which is ordinarily performed in hospital. However, it is a difficult procedure as the occurrence of many failure of the puncture and sometimes medical accidents such as nerve damage and blood vessel damage are reported. This is caused by the difficulty of visually identification of the blood vessel. Although the depth information of the blood vessel is also important, the existing system in clinical practice can visualize vessels only by two dimensional images. In our previous work, we proposed a method that adds angle filtering to a refocus-based system using light field imaging to estimate the three-dimensional position of blood vessels. Angular filtering can reduce blurring of blood vessel image obtained using infrared light due to the strong scattering properties of biological tissue. By applying the refocusing technique to an image with reduced blur, it is possible to obtain enhanced cross-sectional information of a blood vessel using near-infrared light at each depth. However, in the previous study, only phantom model results were reported, and it was not possible to study practicality. In this paper, we report the results of applying and verifying the effectiveness of the proposed method to human hand.
基于光场成像逐像素重聚焦的血管位置估计系统
DOI：
10.1117/12.2511192
发表时间：
2019
期刊：
Proc. SPIE
影响因子：
--
作者：
Yoshimoto Kayo;Takahashi Hideya;Yamada Kenji
通讯作者：
Yamada Kenji
基于光场成像重聚焦的船舶位置估计基础研究
DOI：
10.1109/bmeicon.2015.7399566
发表时间：
2015
期刊：
2015 8th Biomedical Engineering International Conference (BMEiCON)
影响因子：
--
作者：
Kayo Yoshimoto;Hodaka Yamada;Hideya Takahashi
通讯作者：
Hideya Takahashi
影响因子：
2.8
作者：
Jacobson, AF;Winslow, EH
通讯作者：
Winslow, EH