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Most learning-based super-resolution (SR) methods aim to recover high-resolution (HR) image from a given low-resolution (LR) image via learning on LR-HR image pairs. The SR methods learned on synthetic data do not perform well in…

Image and Video Processing · Electrical Eng. & Systems 2020-01-09 Dong Gong , Wei Sun , Qinfeng Shi , Anton van den Hengel , Yanning Zhang

Most existing super-resolution methods do not perform well in real scenarios due to lack of realistic training data and information loss of the model input. To solve the first problem, we propose a new pipeline to generate realistic…

Image and Video Processing · Electrical Eng. & Systems 2019-05-30 Xiangyu Xu , Yongrui Ma , Wenxiu Sun

Super-resolution is a fundamental problem in computer vision which aims to overcome the spatial limitation of camera sensors. While significant progress has been made in single image super-resolution, most algorithms only perform well on…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Xiangyu Xu , Yongrui Ma , Wenxiu Sun , Ming-Hsuan Yang

The performance of deep learning based image super-resolution (SR) methods depend on how accurately the paired low and high resolution images for training characterize the sampling process of real cameras. Low and high resolution…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Yanhui Guo , Xiaolin Wu , Xiao Shu

Deep learning is expected to offer new opportunities and a new paradigm for the field of architecture. One such opportunity is teaching neural networks to visually understand architectural elements from the built environment. However, the…

Machine Learning · Computer Science 2021-05-11 Mohammad Alawadhi , Wei Yan

Machine learning techniques work best when the data used for training resembles the data used for evaluation. This holds true for learned single-image denoising algorithms, which are applied to real raw camera sensor readings but, due to…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Tim Brooks , Ben Mildenhall , Tianfan Xue , Jiawen Chen , Dillon Sharlet , Jonathan T. Barron

Most camera images are rendered and saved in the standard RGB (sRGB) format by the camera's hardware. Due to the in-camera photo-finishing routines, nonlinear sRGB images are undesirable for computer vision tasks that assume a direct…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Seonghyeon Nam , Abhijith Punnappurath , Marcus A. Brubaker , Michael S. Brown

The capabilities of super-resolution reconstruction (SRR)---techniques for enhancing image spatial resolution---have been recently improved significantly by the use of deep convolutional neural networks. Commonly, such networks are learned…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Michal Kawulok , Szymon Piechaczek , Krzysztof Hrynczenko , Pawel Benecki , Daniel Kostrzewa , Jakub Nalepa

Super-resolution (SR) has traditionally been based on pairs of high-resolution images (HR) and their low-resolution (LR) counterparts obtained artificially with bicubic downsampling. However, in real-world SR, there is a large variety of…

Image and Video Processing · Electrical Eng. & Systems 2020-11-06 Mohammad Saeed Rad , Thomas Yu , Claudiu Musat , Hazim Kemal Ekenel , Behzad Bozorgtabar , Jean-Philippe Thiran

Digital zoom on smartphones relies on learning-based super-resolution (SR) models that operate on RAW sensor images, but obtaining sensor-specific training data is challenging due to the lack of ground-truth images. Synthetic data…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Ali Mosleh , Faraz Ali , Fengjia Zhang , Stavros Tsogkas , Junyong Lee , Alex Levinshtein , Michael S. Brown

The vast majority of standard image and video content available online is represented in display-encoded color spaces, in which pixel values are conveniently scaled to a limited range (0-1) and the color distribution is approximately…

Image and Video Processing · Electrical Eng. & Systems 2025-04-22 Andrew Yanzhe Ke , Lei Luo , Xiaoyu Xiang , Yuchen Fan , Rakesh Ranjan , Alexandre Chapiro , Rafał K. Mantiuk

Real-world image super-resolution (Real SR) aims to generate high-fidelity, detail-rich high-resolution (HR) images from low-resolution (LR) counterparts. Existing Real SR methods primarily focus on generating details from the LR RGB…

Image and Video Processing · Electrical Eng. & Systems 2024-11-22 Long Peng , Wenbo Li , Jiaming Guo , Xin Di , Haoze Sun , Yong Li , Renjing Pei , Yang Wang , Yang Cao , Zheng-Jun Zha

Demosaicking and denoising are the first steps of any camera image processing pipeline and are key for obtaining high quality RGB images. A promising current research trend aims at solving these two problems jointly using convolutional…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Thibaud Ehret , Axel Davy , Pablo Arias , Gabriele Facciolo

Most current super-resolution methods rely on low and high resolution image pairs to train a network in a fully supervised manner. However, such image pairs are not available in real-world applications. Instead of directly addressing this…

Image and Video Processing · Electrical Eng. & Systems 2019-09-23 Andreas Lugmayr , Martin Danelljan , Radu Timofte

Edge-based computer vision models running on compact, resource-limited devices benefit greatly from using unprocessed, detail-rich RAW sensor data instead of processed RGB images. Training these models, however, necessitates large labeled…

Image and Video Processing · Electrical Eng. & Systems 2025-03-07 Radu Berdan , Beril Besbinar , Christoph Reinders , Junji Otsuka , Daisuke Iso

Current deep learning approaches in computer vision primarily focus on RGB data sacrificing information. In contrast, RAW images offer richer representation, which is crucial for precise recognition, particularly in challenging conditions…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Christoph Reinders , Radu Berdan , Beril Besbinar , Junji Otsuka , Daisuke Iso

Existing deep learning methods for image deblurring typically train models using pairs of sharp images and their blurred counterparts. However, synthetically blurring images do not necessarily model the genuine blurring process in…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Kaihao Zhang , Wenhan Luo , Yiran Zhong , Lin Ma , Bjorn Stenger , Wei Liu , Hongdong Li

Bridging the 'reality gap' that separates simulated robotics from experiments on hardware could accelerate robotic research through improved data availability. This paper explores domain randomization, a simple technique for training models…

Robotics · Computer Science 2017-03-22 Josh Tobin , Rachel Fong , Alex Ray , Jonas Schneider , Wojciech Zaremba , Pieter Abbeel

Multiple low-vision tasks such as denoising, deblurring and super-resolution depart from RGB images and further reduce the degradations, improving the quality. However, modeling the degradations in the sRGB domain is complicated because of…

Image and Video Processing · Electrical Eng. & Systems 2024-09-30 Marcos V. Conde , Florin Vasluianu , Radu Timofte

We present a system for training deep neural networks for object detection using synthetic images. To handle the variability in real-world data, the system relies upon the technique of domain randomization, in which the parameters of the…

Computer Vision and Pattern Recognition · Computer Science 2018-04-25 Jonathan Tremblay , Aayush Prakash , David Acuna , Mark Brophy , Varun Jampani , Cem Anil , Thang To , Eric Cameracci , Shaad Boochoon , Stan Birchfield
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