Is Underwater Image Enhancement All Object Detectors Need?

作     者：Wang, Yudong Guo, Jichang He, Wanru Gao, Huan Yue, Huihui Zhang, Zenan Li, Chongyi 

作者机构：The School of Electrical and Information Engineering Tianjin University Tianjin300072 China Shanghai Artificial Intelligence Laboratory Shanghai200232 China The School of Computer Science Nankai University Tianjin300071 China 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2023年

核心收录：

主　　题：Object detection 

摘      要：Underwater object detection is a crucial and challenging problem in marine engineering and aquatic robot. The difficulty is partly because of the degradation of underwater images caused by light selective absorption and scattering. Intuitively, enhancing underwater images can benefit high-level applications like underwater object detection. However, it is still unclear whether all object detectors need underwater image enhancement as pre-processing. We therefore pose the questions Does underwater image enhancement really improve underwater object detection? and How does underwater image enhancement contribute to underwater object detection?. With these two questions, we conduct extensive studies. Specifically, we use 18 state-of-the-art underwater image enhancement algorithms, covering traditional, CNN-based, and GAN-based algorithms, to pre-process underwater object detection data. Then, we retrain 7 popular deep learning-based object detectors using the corresponding results enhanced by different algorithms, obtaining 126 underwater object detection models. Coupled with 7 object detection models retrained using raw underwater images, we employ these 133 models to comprehensively analyze the effect of underwater image enhancement on underwater object detection. We expect this study can provide sufficient exploration to answer the aforementioned questions and draw more attention of the community to the joint problem of underwater image enhancement and underwater object detection. The pre-trained models and results are publicly available and will be regularly updated. Project page: https://***/BIGWangYuDong/lqit/tree/main/configs/detection/uw_enhancement_affect_detection. © 2023, CC BY.