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高光谱成像技术在烟草行业中的应用研究进展

Advances in the Application of Hyperspectral Imaging Technology in the Tobacco Industry: A Review

  • 摘要: 高光谱成像(Hyperspectral imaging,HSI)技术融合了成像与光谱学,能在像素级别同时获取目标样品的空间与光谱信息,已成为食品与农业分析领域重要的无损检测手段。文中对HSI在烟草行业中的应用进行系统综述,涵盖田间管理、原料质量评价及加工过程质量控制环节。在田间管理方面,HSI技术主要用于长势与营养动态监测、病害早期预警及成熟度分析。在原料质量评价中,该技术用于化学成分定量、物理特性表征、霉变早期识别以及部位、等级、品种等属性的智能化判别。在加工过程控制领域,HSI技术在烟丝掺配比例定量、加香加料均匀性评估、含水率在线检测及异物除杂等方面展现出技术优势。最后,文中分析了当前研究面临的主要挑战,包括数据集规模受限、模型跨场景泛化能力不足以及从实验室到田间或生产线的尺度迁移存在壁垒等问题。针对上述问题,文中进一步展望了该领域未来的发展趋势与研究方向。

     

    Abstract: Hyperspectral imaging (HSI) technology integrates imaging and spectroscopy to simultaneously acquire spatial and spectral information of target samples at the pixel level, emerging as a crucial non-destructive testing method in food and agricultural analysis. Although extensive research has been conducted on the application of HSI throughout the tobacco industry chain, systematic reviews remain relatively scarce. Therefore, this paper provides a comprehensive review of HSI applications in the tobacco industry, covering three major stages: field management, raw material quality evaluation, and quality control during processing. In field management, HSI is primarily utilized for the dynamic monitoring of crop growth and nutrition, early warning of diseases, and maturity analysis. For raw material quality evaluation, this technology is employed in the quantitative analysis of chemical components, characterization of physical properties, early identification of mildew, and intelligent classification of attributes such as stalk position, grade, and variety. In the realm of processing control, HSI demonstrates significant technical advantages in quantifying the blending ratio of cut tobacco, evaluating the uniformity of casing and flavoring, online monitoring of moisture content, and detecting and removing foreign matter. Finally, this paper analyzes the primary challenges facing current research, including limited dataset scales, insufficient cross-scenario generalization capabilities of models, and the barriers to scale migration from the laboratory to the field or production line. Addressing these issues, this paper further outlines the future development trends and research directions in this field.

     

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