arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.13188cs.CV
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基于图像的多任务膳食评估,用于食物识别和分量估计

Multi-Task Image-Based Dietary Assessment for Food Recognition and Portion Size Estimation

Purdue University(普渡大学);Curtin University(科廷大学);University of Hawaii Cancer Center(夏威夷大学癌症中心)

Jiangpeng He, Zeman Shao, Janine Wright, Deborah Kerr, Carol Boushey, Fengqing Zhu

摘要:

基于深度学习的方法在许多基于图像的饮食评估应用中取得了令人印象深刻的结果,例如食物分类和食物份量估计。然而,现有的方法一次只关注一个任务,当需要一起处理多个任务时,很难应用于现实生活中。在这项工作中,我们提出了一个端到端的多任务框架,可以同时实现食物分类和食物分量大小估计。我们介绍了从营养研究中收集的食物图像数据集,其中地面实况食物部分由注册营养师提供。多任务学习使用基于L2范数的软参数共享来同时训练分类和回归任务。我们还建议使用跨域特征自适应与归一化,以进一步提高食物部分大小估计的性能。我们的研究结果优于基线方法的分类精度和平均绝对误差的部分估计,这表明了巨大的潜力,推进基于图像的饮食评估领域。

英文摘要:

Deep learning based methods have achieved impressive results in many applications for image-based diet assessment such as food classification and food portion size estimation. However, existing methods only focus on one task at a time, making it difficult to apply in real life when multiple tasks need to be processed together. In this work, we propose an end-to-end multi-task framework that can achieve both food classification and food portion size estimation. We introduce a food image dataset collected from a nutrition study where the groundtruth food portion is provided by registered dietitians. The multi-task learning uses L2-norm based soft parameter sharing to train the classification and regression tasks simultaneously. We also propose the use of cross-domain feature adaptation together with normalization to further improve the performance of food portion size estimation. Our results outperforms the baseline methods for both classification accuracy and mean absolute error for portion estimation, which shows great potential for advancing the field of image-based dietary assessment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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