This paper proposes an image dehazing model built with a convolutional neural network (CNN), called All-in-One Dehazing Network (AOD-Net). It is designed based on a re-formulated atmospheric scattering model. Instead of estimating the transmission matrix and the atmospheric light separately as most previous models did, AOD-Net directly generates the clean image through a light-weight CNN. Such a novel end-to-end design makes it easy to embed AOD-Net into other deep models, e.g., Faster R-CNN, for improving high-level task performance on hazy images. Experimental results on both synthesized and natural hazy image datasets demonstrate our superior performance than the state-of-the-art in terms of PSNR, SSIM and the subjective visual quality. Furthermore, when concatenating AOD-Net with Faster R-CNN and training the joint pipeline from end to end, we witness a large improvement of the object detection performance on hazy images.

本文提出了一种基于卷积神经网络的图像去雾模型AOD-Net，其通过一种新颖的端到端设计，直接生成干净图像，进而通过与Faster R-CNN模型的级联来提高雾图上的目标检测性能。实验结果表明，该模型在合成和自然雾图数据集上均表现出比现有模型更卓越的PSNR, SSIM和主观视觉质量表现。

一种多功能去雾网络