In this work we propose a methodology for an automatic food classification
system which recognizes the contents of the meal from the images of the food.
We developed a multi-layered deep convolutional neural network (CNN)
architecture that takes advantages of the features from other deep networks and
improves the efficiency. Numerous classical handcrafted features and approaches
are explored, among which CNNs are chosen as the best performing features.
Networks are trained and fine-tuned using preprocessed images and the filter
outputs are fused to achieve higher accuracy. Experimental results on the
largest real-world food recognition database ETH Food-101 and newly contributed
Indian food image database demonstrate the effectiveness of the proposed
methodology as compared to many other benchmark deep learned CNN frameworks.

本文提出了一种自动食物分类系统的方法，该系统能够从食物图像中识别出食物的内容。采用多层卷积神经网络架构，并在训练中用到了预处理的图像和滤波器输出进行融合以提高准确率。该方法在 ETH Food-101 数据库和新贡献的印度食品图像数据库上表现出比其他基准深度学习 CNN 框架更加有效的效果。