基于Faster-RCNN-FPN和紫外线下的光谱图像来对微塑料聚合物类型进行分类的新方法
Thunchanok Thammasanya1,2, Sakarat Patiam3, Eknarin Rodcharoen3
1Faculty of Environmental Management, Prince of Songkla University, Hat Yai, Thailand.
Scientific reports
|February 12, 2024
概括
本研究介绍了一种低成本,高效的方法,使用紫外线和深度学习来识别和量化微塑料. 这种新的方法有助于监测海洋污染和保护生态系统.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 数据科学数据科学数据科学
背景情况:
- 微塑料通过吸附危险化合物,造成环境和健康风险.
- 传统的微塑料分析是昂贵的,耗时的,需要专门的实验室设备.
- 需要自动识别方法来有效评估微塑料污染.
研究的目的:
- 开发和验证一种使用深度学习和紫外线光线进行微塑料分类的新且具有成本效益的方法.
- 提高海洋环境中微塑料识别和量化准确性和效率.
- 为研究人员提供一个工具,以便更好地了解微塑料的分布和影响.
主要方法:
- 实现了一个使用ResNet-50-FPN骨干的Faster-RCNN深度学习模型.
- 利用在紫外线下捕获的微塑料的现场图像进行培训和验证.
- 在内部和外部数据集上测试模型的性能.
主要成果:
- 实现了微塑料分类的高精度,从85.5%到87.8%不等.
- 获得的平均平均精度 (mAP) 在内部测试套件上为33.9%,在外部测试套件上为35.7%.
- 证明了该模型在自动化微塑料识别和计数方面的有效性.
结论:
- 结合紫外线和深度学习的方法为微塑料分析提供了高精度,低成本和时间有效的解决方案.
- 这种方法可以显著帮助监测和管理沿海和海洋生态系统中的微塑料污染.
- 开发的分类模型为环境研究和保护工作提供了有价值的工具.
相关概念视频
01:37Super-resolution Fluorescence Microscopy
7.0K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.0K
01:26Polymer Classification: Stereospecificity
2.4K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.4K
01:21Polymer Classification: Crystallinity
2.9K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
2.9K