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arXiv · 2212.02059

Region-Conditioned Orthogonal 3D U-Net for Weather4Cast Competition

Taehyeon Kim·Shinhwan Kang·Hyeonjeong Shin·Deukryeol Yoon·Seongha Eom·Kijung Shin·Se-Young Yun
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Abstract

The Weather4Cast competition (hosted by NeurIPS 2022) required competitors to predict super-resolution rain movies in various regions of Europe when low-resolution satellite contexts covering wider regions are given. In this paper, we show that a general baseline 3D U-Net can be significantly improved with region-conditioned layers as well as orthogonality regularizations on 1x1x1 convolutional layers. Additionally, we facilitate the generalization with a bag of training strategies: mixup data augmentation, self-distillation, and feature-wise linear modulation (FiLM). Presented modifications outperform the baseline algorithms (3D U-Net) by up to 19.54% with less than 1% additional parameters, which won the 4th place in the core test leaderboard.

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Taehyeon Kim, Shinhwan Kang, Hyeonjeong Shin, Deukryeol Yoon, Seongha Eom, Kijung Shin, Se-Young Yun. 2022-12-05. Region-Conditioned Orthogonal 3D U-Net for Weather4Cast Competition. https://arxiv.org/abs/2212.02059

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