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Super-resolution (SR) models in cosmological simulations use deep learning (DL) to rapidly enhance low-resolution (LR) runs with statistically correct fine details. These models preserves large-scale structures by conditioning on an LR…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-13 Xiaowen Zhang , Patrick Lachance , Ankita Dasgupta , Rupert A. C. Croft , Tiziana Di Matteo , Yueying Ni , Simeon Bird , Yin Li

Learning super-resolution (SR) network without the paired low resolution (LR) and high resolution (HR) image is difficult because direct supervision through the corresponding HR counterpart is unavailable. Recently, many real-world SR…

Image and Video Processing · Electrical Eng. & Systems 2021-09-21 Kwangjin Yoon

In this paper, we tackle a fully unsupervised super-resolution problem, i.e., neither paired images nor ground truth HR images. We assume that low resolution (LR) images are relatively easy to collect compared to high resolution (HR)…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Namhyuk Ahn , Jaejun Yoo , Kyung-Ah Sohn

Depth maps captured with commodity sensors are often of low quality and resolution; these maps need to be enhanced to be used in many applications. State-of-the-art data-driven methods of depth map super-resolution rely on registered pairs…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Aleksandr Safin , Maxim Kan , Nikita Drobyshev , Oleg Voynov , Alexey Artemov , Alexander Filippov , Denis Zorin , Evgeny Burnaev

Aligning a lens system relative to an imager is a critical challenge in camera manufacturing. While optimal alignment can be mathematically computed under ideal conditions, real-world deviations caused by manufacturing tolerances often…

Robotics · Computer Science 2025-10-06 Matthias Burkhardt , Tobias Schmähling , Pascal Stegmann , Michael Layh , Tobias Windisch

Recently, lots of deep networks are proposed to improve the quality of predicted super-resolution (SR) images, due to its widespread use in several image-based fields. However, with these networks being constructed deeper and deeper, they…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Wei. Lin , Junyu. Gao , Qi. Wang , Xuelong. Li

Single-image super-resolution is the process of increasing the resolution of an image, obtaining a high-resolution (HR) image from a low-resolution (LR) one. By leveraging large training datasets, convolutional neural networks (CNNs)…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Marija Vella , João F. C. Mota

We propose a method of aligning a source image to a target image, where the transform is specified by a dense vector field. The two images are encoded as feature hierarchies by siamese convolutional nets. Then a hierarchy of aligner modules…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Eric Mitchell , Stefan Keselj , Sergiy Popovych , Davit Buniatyan , H. Sebastian Seung

Transformer architectures prominently lead single-image super-resolution (SISR) benchmarks, reconstructing high-resolution (HR) images from their low-resolution (LR) counterparts. Their strong representative power, however, comes with a…

Image and Video Processing · Electrical Eng. & Systems 2025-04-01 Björn Möller , Lucas Görnhardt , Tim Fingscheidt

3D super-resolution aims to reconstruct high-fidelity 3D models from low-resolution (LR) multi-view images. Early studies primarily focused on single-image super-resolution (SISR) models to upsample LR images into high-resolution images.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Hyun-kyu Ko , Dongheok Park , Youngin Park , Byeonghyeon Lee , Juhee Han , Eunbyung Park

Deep learning-based (DL-based) hyperspectral image (HIS) super-resolution (SR) methods have achieved remarkable performance and attracted attention in industry and academia. Nonetheless, most current methods explored and learned the mapping…

Image and Video Processing · Electrical Eng. & Systems 2024-07-10 Yang Yu

Cross-modal super-resolution (SR) on real-world misaligned data is challenging, as only unlabeled low-resolution (LR) source and high-resolution (HR) guide images with complex spatial misalignment are available. Previous methods either rely…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Xiaoyu Dong , Jiahuan Li , Ziteng Cui , Naoto Yokoya

Neural Radiance Fields (NeRFs) are a powerful representation for modeling a 3D scene as a continuous function. Though NeRF is able to render complex 3D scenes with view-dependent effects, few efforts have been devoted to exploring its…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Yifan Jiang , Peter Hedman , Ben Mildenhall , Dejia Xu , Jonathan T. Barron , Zhangyang Wang , Tianfan Xue

Image alignment tasks require accurate pixel correspondences, which are usually recovered by matching local feature descriptors. Such descriptors are often derived using supervised learning on existing datasets with ground truth…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Jing Dong , Byron Boots , Frank Dellaert , Ranveer Chandra , Sudipta N. Sinha

Image super-resolution (SR) is a fast-moving field with novel architectures attracting the spotlight. However, most SR models were optimized with dated training strategies. In this work, we revisit the popular RCAN model and examine the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-28 Zudi Lin , Prateek Garg , Atmadeep Banerjee , Salma Abdel Magid , Deqing Sun , Yulun Zhang , Luc Van Gool , Donglai Wei , Hanspeter Pfister

Learning based single image super-resolution (SISR) for real-world images has been an active research topic yet a challenging task, due to the lack of paired low-resolution (LR) and high-resolution (HR) training images. Most of the existing…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Wanjie Sun , Zhenzhong Chen

In real-world single image super-resolution (SISR) task, the low-resolution image suffers more complicated degradations, not only downsampled by unknown kernels. However, existing SISR methods are generally studied with the synthetic…

Image and Video Processing · Electrical Eng. & Systems 2020-09-15 Guanghao Yin , Shouqian Sun , Chao Li , Xin Min

Large deep networks have demonstrated competitive performance in single image super-resolution (SISR), with a huge volume of data involved. However, in real-world scenarios, due to the limited accessible training pairs, large models exhibit…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Ruicheng Feng , Jinjin Gu , Yu Qiao , Chao Dong

Burst super-resolution (SR) technique provides a possibility of restoring rich details from low-quality images. However, since real world low-resolution (LR) images in practical applications have multiple complicated and unknown…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Wenyi Lian , Shanglian Peng

Reconstructing high dynamic range (HDR) images from low dynamic range (LDR) bursts plays an essential role in the computational photography. Impressive progress has been achieved by learning-based algorithms which require LDR-HDR image…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Wei Jiang , Jiahao Cui , Yizheng Wu , Zhan Peng , Zhiyu Pan , Zhiguo Cao