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AIM 2020 Challenge on Learned Image Signal Processing Pipeline

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TLDR
The second AIM learned ISP challenge as mentioned in this paper focused on real-world RAW-to-RGB mapping problem, where the goal was to map the original low-quality RAW images captured by the Huawei P20 device to the same photos obtained with the Canon 5D DSLR camera.
Abstract
This paper reviews the second AIM learned ISP challenge and provides the description of the proposed solutions and results. The participating teams were solving a real-world RAW-to-RGB mapping problem, where to goal was to map the original low-quality RAW images captured by the Huawei P20 device to the same photos obtained with the Canon 5D DSLR camera. The considered task embraced a number of complex computer vision subtasks, such as image demosaicing, denoising, white balancing, color and contrast correction, demoireing, etc. The target metric used in this challenge combined fidelity scores (PSNR and SSIM) with solutions’ perceptual results measured in a user study. The proposed solutions significantly improved the baseline results, defining the state-of-the-art for practical image signal processing pipeline modeling.

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References
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Image Super-Resolution Using Very Deep Residual Channel Attention Networks

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GCNet: Non-Local Networks Meet Squeeze-Excitation Networks and Beyond

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Scale-Recurrent Network for Deep Image Deblurring

TL;DR: A Scale-recurrent Network (SRN-DeblurNet) is proposed and shown to produce better quality results than state-of-the-arts, both quantitatively and qualitatively in single image deblurring.
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Super-Convergence: Very Fast Training of Residual Networks Using Large Learning Rates

TL;DR: Super-convergence as discussed by the authors is a phenomenon where residual networks can be trained using an order of magnitude fewer iterations than is used with standard training methods, which is relevant to understanding why deep networks generalize well.
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What pre trained machine learning APIS would you use in this image processing pipeline?

The proposed solutions significantly improved the baseline results, defining the state-of-the-art for practical image signal processing pipeline modeling.