arXiv:2503.06647cs.CVcs.CE2025-03被引 2

针对个体饮食习惯的智能食物分类模型,提升饮食监测准确率。

Personalized Class Incremental Context-Aware Food Classification for Food Intake Monitoring Systems

  • 基于用户饮食习惯个性化筛选食物类别,动态优化分类重点。
  • 在新旧食物类别上均提升准确率,新类识别效果显著改善。
  • 适合需要长期追踪个人饮食的健康监测系统使用。

精准的食物摄入监测对维持健康饮食、预防营养相关疾病至关重要。由于食物种类在不同文化中差异巨大,传统食物分类模型受限于固定规模的数据集。研究表明,个体实际消费的食物种类有限且具有独特性。现有增量学习模型对新类别的识别准确率低,缺乏个性化支持。本文提出一种个性化增量食物分类模型,通过结合用户饮食习惯(如进食频率、时间、地点)优先关注其常食食物,提升分类准确性。采用改进的DSN扩展新类别的外观特征表示。构建了完整食物摄入监测框架:用户上传餐食图像,配合智能秤估算重量,利用营养数据库计算宏量营养素含量,并通过移动端生成个人膳食档案。在两个新基准数据集FOOD101-Personal和VFN-Personal上的实验验证了该模型在新旧类别上均优于传统与增量学习模型。

原文摘要 · Abstract (English)

Accurate food intake monitoring is crucial for maintaining a healthy diet and preventing nutrition-related diseases. With the diverse range of foods consumed across various cultures, classic food classification models have limitations due to their reliance on fixed-sized food datasets. Studies show that people consume only a small range of foods across the existing ones, each consuming a unique set of foods. Existing class-incremental models have low accuracy for the new classes and lack personalization. This paper introduces a personalized, class-incremental food classification model designed to overcome these challenges and improve the performance of food intake monitoring systems. Our approach adapts itself to the new array of food classes, maintaining applicability and accuracy, both for new and existing classes by using personalization. Our model's primary focus is personalization, which improves classification accuracy by prioritizing a subset of foods based on an individual's eating habits, including meal frequency, times, and locations. A modified version of DSN is utilized to expand on the appearance of new food classes. Additionally, we propose a comprehensive framework that integrates this model into a food intake monitoring system. This system analyzes meal images provided by users, makes use of a smart scale to estimate food weight, utilizes a nutrient content database to calculate the amount of each macro-nutrient, and creates a dietary user profile through a mobile application. Finally, experimental evaluations on two new benchmark datasets FOOD101-Personal and VFN-Personal, personalized versions of well-known datasets for food classification, are conducted to demonstrate the effectiveness of our model in improving the classification accuracy of both new and existing classes, addressing the limitations of both conventional and class-incremental food classification models.

食物分类个性化增量学习饮食监测

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