資源制約デバイス向け水中画像強調のための物理誘導スペクトル蒸留
Physics-Guided Spectral Distillation for Underwater Image Enhancement on Resource-Constrained Devices
物理誘導スペクトル蒸留により、水中画像強調モデルを軽量化しつつ高性能を維持し、資源制約のある水中ロボットでのリアルタイム展開を可能にした。
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著者: Yifan Chen, Kai He, Ye Zheng, Jijun Lu, Zhe Sun, Tao Chen
分類: cs.CV
原文アブストラクト
Underwater image enhancement is crucial for improving visual perception in marine applications. Existing underwater image enhancement studies mainly focus on enhancement quality and visual fidelity, while rarely considering real-time deployment capability, which is essential for resource-constrained underwater robots. To this end, we introduce a physics-guided spectral distillation (PSD) method, which reduces model capacity for real-time applications while maintaining the high performance of underwater image enhancement models. To decompose the outputs of teacher and student models, PSD adopts a multilevel Haar discrete wavelet transform. It transfers low-frequency color and illumination information as well as high-frequency structural details through band-specific objectives. Moreover, the distillation process of PSD is degradation-aware. We estimate degradation-aware weights through a physical head and combine them with ground-truth-guided reliability masks to selectively retain valuable teacher guidance. Experiments on the UIEB, LSUI, and EUVP datasets validate the effectiveness of the proposed method. Furthermore, we demonstrate the benefits of enhanced images for downstream perception tasks, including object detection. Deployment on a self-developed ROV further demonstrates its practical applicability in real-world underwater scenarios.