Papers › StyleMix: Separating Content and Style for Enhanced Data Augmentation
StyleMix: Separating Content and Style for Enhanced Data Augmentation
Minui Hong, Jinwoo Choi, Gunhee Kim
In spite of the great success of deep neural networks for many challenging classification tasks, the learned networks are vulnerable to overfitting and adversarial attacks. Recently, mixup based augmentation methods have been actively studied as one practical remedy for these drawbacks. However, these approaches do not distinguish between the content and style features of the image, but simply mix or cut-and-paste the image. We propose StyleMix and StyleCutMix as the first mixup method that separately manipulates the content and style information of input image pairs. By carefully mixing up the content and style of images, we can create more abundant and robust samples, which eventually enhance the generalization of the model training. We also develop an automatic scheme to decide the degree of style mixing according to the pair's class distance, to prevent messy mixed images from too differently styled pairs. Our experiments on CIFAR-100, CIFAR-10, and ImageNet datasets show that StyleMix achieves comparable performance to state of the art mixup methods and learns more robust classifiers to adversarial attacks.
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