SESR: Single Image Super Resolution with Recursive Squeeze and Excitation Networks

31 Jan 2018  ·  Xi Cheng, Xiang Li, Ying Tai, Jian Yang ·

Single image super resolution is a very important computer vision task, with a wide range of applications. In recent years, the depth of the super-resolution model has been constantly increasing, but with a small increase in performance, it has brought a huge amount of computation and memory consumption. In this work, in order to make the super resolution models more effective, we proposed a novel single image super resolution method via recursive squeeze and excitation networks (SESR). By introducing the squeeze and excitation module, our SESR can model the interdependencies and relationships between channels and that makes our model more efficiency. In addition, the recursive structure and progressive reconstruction method in our model minimized the layers and parameters and enabled SESR to simultaneously train multi-scale super resolution in a single model. After evaluating on four benchmark test sets, our model is proved to be above the state-of-the-art methods in terms of speed and accuracy.

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Task Dataset Model Metric Name Metric Value Global Rank Benchmark
Image Super-Resolution BSD100 - 4x upscaling SESR PSNR 27.42 # 34
SSIM 0.737 # 28
Image Super-Resolution Set14 - 4x upscaling SESR PSNR 28.32 # 52
SSIM 0.784 # 39
Image Super-Resolution Urban100 - 4x upscaling SESR PSNR 25.42 # 41
SSIM 0.771 # 34

Methods