A Novel Residual Dense Pyramid Network for Image Dehazing

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@Article{yin:2019:Entropy,

• author = "Shibai Yin and Yibin Wang and Yee-Hong Yang",
• title = "A Novel Residual Dense Pyramid Network for Image Dehazing",
• journal = "Entropy",
• year = "2019",
• volume = "21",
• number = "11",
• keywords = "genetic algorithms, genetic programming",
• ISSN = "1099-4300",
• URL = "https://www.mdpi.com/1099-4300/21/11/1123",
• DOI = "doi:10.3390/e21111123",
• abstract = "Recently, convolutional neural network (CNN) based on the encoder-decoder structure have been successfully applied to image dehazing. However, these CNN based dehazing methods have two limitations: First, these dehazing models are large in size with enormous parameters, which not only consumes much GPU memory, but also is hard to train from scratch. Second, these models, which ignore the structural information at different resolutions of intermediate layers, cannot capture informative texture and edge information for dehazing by stacking more layers. In this paper, we propose a light-weight end-to-end network named the residual dense pyramid network (RDPN) to address the above problems. To exploit the structural information at different resolutions of intermediate layers fully, a new residual dense pyramid (RDP) is proposed as a building block. By introducing a dense information fusion layer and the residual learning module, the RDP can maximize the information flow and extract local features. Furthermore, the RDP further learns the structural information from intermediate layers via a multiscale pyramid fusion mechanism. To reduce the number of network parameters and to ease the training process, we use one RDP in the encoder and two RDPs in the decoder, following a multilevel pyramid pooling layer for incorporating global context features before estimating the final result. The extensive experimental results on a synthetic dataset and real-world images demonstrate that the new RDPN achieves favourable performance compared with some state-of-the-art methods, e.g., the recent densely connected pyramid dehazing network, the all-in-one dehazing network, the enhanced pix2pix dehazing network, pixel-based alpha blending, artificial multi-exposure image fusions and the genetic programming estimator, in terms of accuracy, run time and number of parameters. To be specific, RDPN outperforms all of the above methods in terms of PSNR by at least 4.25 dB. The run time of the proposed method is 0.021 s, and the number of parameters is 1,534,799, only 6percent of that used by the densely connected pyramid dehazing network.",
• notes = "also known as \cite{e21111123}",

}

Genetic Programming entries for Shibai Yin Yibin Wang Herbert Yang

Citations