Mr. Shengtong Yang Profile

Shengtong Yang

at National Key Lab. of Science and Technology on ATR

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Proceedings Article | 27 January 2021 Paper

Grid cut and mix: flexible and efficient data augmentation

Shuai Feng, Shengtong Yang, Zhaodong Niu, Jianbin Xie, Mingshan Wei, Peiqin Li

Proceedings Volume 11720, 1172028 (2021) https://doi.org/10.1117/12.2589385

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Data augmentation plays an indispensable role in expanding datasets and preventing neural network overfitting. In this paper, we analyzed the advantages and disadvantages of information dropping and information mixing methods in data augmentation. Then we combine the advantage of information dropping and information mixing, and propose Gridcut and Gridmix. Gridcut is based on the structured deletion of the input images like Gridmask. The size and shape of the deleted areas can be flexibly adjusted according to the Characteristics of the dataset. Based on this Gridcut, Gridmix interpolates pixel information of other images on the deleted areas. Comparative experiments demonstrate that our methods outperform the state-of-the-art augmentation strategies on CIFAR classification tasks. By adjusting the parameters, our method can also be flexibly expanded into Cutout, Cutmix and Gridmask.

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