Papers › Perceptual Extreme Super Resolution Network with Receptive Field Block

Perceptual Extreme Super Resolution Network with Receptive Field Block

26 May 2020arXiv:2005.12597archive 2025-07-28

Taizhang Shang, Qiuju Dai, Shengchen Zhu, Tong Yang, Yandong Guo

Perceptual Extreme Super-Resolution for single image is extremely difficult, because the texture details of different images vary greatly. To tackle this difficulty, we develop a super resolution network with receptive field block based on Enhanced SRGAN. We call our network RFB-ESRGAN. The key contributions are listed as follows. First, for the purpose of extracting multi-scale information and enhance the feature discriminability, we applied receptive field block (RFB) to super resolution. RFB has achieved competitive results in object detection and classification. Second, instead of using large convolution kernels in multi-scale receptive field block, several small kernels are used in RFB, which makes us be able to extract detailed features and reduce the computation complexity. Third, we alternately use different upsampling methods in the upsampling stage to reduce the high computation complexity and still remain satisfactory performance. Fourth, we use the ensemble of 10 models of different iteration to improve the robustness of model and reduce the noise introduced by each individual model. Our experimental results show the superior performance of RFB-ESRGAN. According to the preliminary results of NTIRE 2020 Perceptual Extreme Super-Resolution Challenge, our solution ranks first among all the participants.

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Lornatang/RFB_ESRGAN-PyTorch mentioned on GitHubpytorchApache-2.0 report

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image2tensor Lornatang/RFB_ESRGAN-PyTorch/imgproc.py community (archive-listed) ran Apache-2.0 (permissive) · d22766d95ec24b98 · report
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Tasks

Image Super-ResolutionObject DetectionSuper-Resolutionobject-detection

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Image Super-Resolution DIV8K test - 16x upscaling RFB-ESRGAN LPIPS 0.348 #1 of 1 Archive leaderboard report
Image Super-Resolution DIV8K test - 16x upscaling RFB-ESRGAN PSNR 23.38 #1 of 1 Archive leaderboard report
Image Super-Resolution DIV8K val - 16x upscaling RFB-ESRGAN LPIPS 0.345 #2 of 3 Archive leaderboard report
Image Super-Resolution DIV8K val - 16x upscaling RFB-ESRGAN PSNR 24.03 #2 of 3 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

1x1 ConvolutionBatch NormalizationConvolutionDense ConnectionsDilated ConvolutionDropoutMax PoolingPReLUPixelShuffleRFBReLUResidual BlockResidual ConnectionSRGANSRGAN Residual BlockSigmoid ActivationSoftmaxVGG Loss

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