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相关概念视频

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

330
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
330
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

299
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
299
Skin Cancer01:30

Skin Cancer

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Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
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相关实验视频

Updated: Jun 14, 2025

Combining Reflectance Confocal Microscopy with Optical Coherence Tomography for Noninvasive Diagnosis of Skin Cancers via Image Acquisition
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转移对比学习拉曼光谱 皮肤癌 组织分类

Zhiqiang Wang, Yanbin Lin, Xingquan Zhu

    IEEE journal of biomedical and health informatics
    |August 29, 2024
    PubMed
    概括
    此摘要是机器生成的。

    这项研究引入了转移对比学习范式 (TCLP),以改善使用拉曼光谱 (RS) 信号的皮肤癌分类. TCLP有效地解决了数据稀缺性和信号噪声问题,提高了临床应用中的拉曼光谱的诊断准确性.

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    科学领域:

    • 生物医学光学 生物医学光学
    • 医学诊断 医学诊断 医学诊断
    • 医疗保健中的机器学习

    背景情况:

    • 拉曼光谱 (RS) 是一种有前途的非侵入性光学技术,用于皮肤癌组织分类,分析分子结构.
    • 临床应用中的挑战包括杂和不稳定的RS信号和组织样本的稀缺性,阻碍可靠的深度学习模型培训.

    研究的目的:

    • 引入一种新的转移对比学习模式 (TCLP),用于使用拉曼光谱信号进行皮肤癌组织分类.
    • 为解决机器学习模型的RS数据固有的数据稀缺和信号噪声的局限性.

    主要方法:

    • TCLP利用转移学习来预训练深度学习模型,使用来自类似领域的RS数据,减轻样本规模有限的问题.
    • 在TCLP中使用对比学习来增强RS信号,学习强大的特征表示和克服信号噪声.
    • 拟议的方法与现有的深度学习基线进行了评估,使用实验和统计测试.

    主要成果:

    • 与当前的深度学习方法相比,转移对比学习模式 (TCLP) 在基于RS信号的皮肤癌组织分类方面表现优越.
    • 该方法有效地处理杂的RS信号和有限的样本可用性,这对于临床翻译至关重要.
    • 统计测试证实了TCLP与基线模型相比的显著优异性.

    结论:

    • TCLP提供了使用拉曼光谱进行皮肤癌分类的强大解决方案,有效地管理数据稀缺性和信号噪声.
    • 该范式显示出在皮肤病诊断中提高深度学习模型的可靠性和临床适用性的巨大潜力.
    • 这项工作推动了光学技术和机器学习在非侵入性癌症检测中的应用.