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The Retina

The Retina

The retina is a layer of nervous tissue at the back of the eye that transduces light into neural signals. This process, called phototransduction, is carried out by rod and cone photoreceptor cells in the back of the retina.

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Updated: Jan 14, 2026

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

视网膜幻影模型用于高光谱成像.

Michelle D Bryarly^1,2, Minh Ha Tran^1,2, Arrsh Ali^1,2

¹Department of Bioengineering, University of Texas at Dallas, Richardson, TX.

Proceedings of SPIE--the International Society for Optical Engineering

|October 20, 2025

概括

此摘要是机器生成的。

研究人员开发了一种新的3D打印视网膜幻体,以准确验证高光谱成像摄像机. 这种创新型号模仿了眼睛的光学特性,为眼睛疾病研究提供了可靠的替代动物试验.

关键词:

眼睛疾病眼睛疾病超光谱成像技术的使用.幻影模型幻影模型视网膜成像视网膜成像局部内镜 fundus成像局部内镜 fundus成像

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相关实验视频

Last Updated: Jan 14, 2026

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

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Published on: August 22, 2018

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科学领域:

眼科医生眼科眼科
生物医学工程生物医学工程
光学成像技术的成像

背景情况:

准确的视网膜成像对于临床前眼睛疾病研究和诊断至关重要.
现有的成像模型难以复制眼睛的复杂光学环境,限制校准和测试.
目前对活动物的依赖引发了伦理方面的担忧,并引入了结果的变化.

研究的目的:

设计和开发一种新的视网膜幻体,用于验证空间和光谱成像特性.
创建一个可靠的,非动物模型,用于校准高光谱成像摄像机.
模拟动物眼睛的光学特征,用于研究应用.

主要方法:

一个3D打印的老鼠视网膜幻影被设计成模仿眼睛的光学品质.
含有无氧化血液的凝被用于模拟视网膜血管系统 (静脉和动脉).
局部内镜底部成像 (TEFI) 超光谱摄像机用于成像幻影.

主要成果:

开发的幻影展示了丰富的空间和光谱细节.
模拟血液的氧化映射产生了可靠的氧化率估计.
幻影成功地复制了视网膜的关键光学和生理特性.

结论:

3D打印的视网膜幻影作为验证高光谱成像 (HSI) 摄像机的宝贵工具.
该模型为眼科研究中的动物模型提供了一种可复制和道德合理的替代方案.
未来的代可以开发来模拟各种眼睛疾病和病理状况.