Data augmentation (DA) is an essential technique for training state-of-the-art deep learning systems. In this paper, we empirically show data augmentation might introduce noisy augmented examples and consequently hurt the performance on unaugmented data during inference. To alleviate this issue, we propose a simple yet highly effective approach, dubbed \emph{KeepAugment}, to increase augmented images fidelity. The idea is first to use the saliency map to detect important regions on the original images and then preserve these informative regions during augmentation. This information-preserving strategy allows us to generate more faithful training examples. Empirically, we demonstrate our method significantly improves on a number of prior art data augmentation schemes, e.g. AutoAugment, Cutout, random erasing, achieving promising results on image classification, semi-supervised image classification, multi-view multi-camera tracking and object detection.

本文提出了一种基于显著性图的数据增强方法KeepAugment，通过保留图像中的重要区域进行增强，从而提高了深度学习系统的性能，在图像分类、半监督图像分类、多视角多摄像头跟踪和目标检测等领域获得了显著的结果。

KeepAugment：一个简单的信息保留数据增强方法