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Image signals typically are defined on a rectangular two-dimensional grid. However, there exist scenarios where this is not fulfilled and where the image information only is available for a non-regular subset of pixel position. For…

Image and Video Processing · Electrical Eng. & Systems 2022-07-15 Jürgen Seiler , André Kaup

It is well known the adversarial optimization of GAN-based image super-resolution (SR) methods makes the preceding SR model generate unpleasant and undesirable artifacts, leading to large distortion. We attribute the cause of such…

Image and Video Processing · Electrical Eng. & Systems 2023-12-01 Axi Niu , Kang Zhang , Joshua Tian Jin Tee , Trung X. Pham , Jinqiu Sun , Chang D. Yoo , In So Kweon , Yanning Zhang

Super resolution techniques can enhance the spatial resolution of remote sensing images, enabling more efficient large scale earth observation applications. While single image SR methods enhance low resolution images, they neglect valuable…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Ce Wang , Wanjie Sun

Video super-resolution (VSR) aims to enhance low-resolution videos by leveraging both spatial and temporal information. While deep learning has led to impressive progress, it typically requires centralized data, which raises privacy…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Ali Mollaahmadi Dehaghi , Hossein KhademSohi , Reza Razavi , Steve Drew , Mohammad Moshirpour

The training of real-world super-resolution reconstruction models heavily relies on datasets that reflect real-world degradation patterns. Extracting and modeling degradation patterns for super-resolution reconstruction using only…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Yiyang Tie , Hong Zhu , Yunyun Luo , Jing Shi

Recent years have witnessed the prosperity of reference-based image super-resolution (Ref-SR). By importing the high-resolution (HR) reference images into the single image super-resolution (SISR) approach, the ill-posed nature of this…

Computer Vision and Pattern Recognition · Computer Science 2024-05-02 Zihan Wang , Ziliang Xiong , Hongying Tang , Xiaobing Yuan

Reference-based Image Super-Resolution (RefSR) aims to restore a low-resolution (LR) image by utilizing the semantic and texture information from an additional reference high-resolution (reference HR) image. Existing diffusion-based RefSR…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Zhenning Shi , Zizheng Yan , Yuhang Yu , Clara Xue , Jingyu Zhuang , Qi Zhang , Jinwei Chen , Tao Li , Qingnan Fan

Recent advancements in diffusion models (DMs) have greatly advanced remote sensing image super-resolution (RSISR). However, their iterative sampling processes often result in slow inference speeds, limiting their application in real-time…

Image and Video Processing · Electrical Eng. & Systems 2025-03-26 Xiaohui Sun , Jiangwei Mo , Hanlin Wu , Jie Ma

Recent research on super-resolution has progressed with the development of deep convolutional neural networks (DCNN). In particular, residual learning techniques exhibit improved performance. In this paper, we develop an enhanced deep…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Bee Lim , Sanghyun Son , Heewon Kim , Seungjun Nah , Kyoung Mu Lee

Learning based single image super resolution (SISR) task is well investigated in 2D images. However, SISR for 3D Magnetics Resonance Images (MRI) is more challenging compared to 2D, mainly due to the increased number of neural network…

Image and Video Processing · Electrical Eng. & Systems 2023-03-27 Qi Wang , Lucas Mahler , Julius Steiglechner , Florian Birk , Klaus Scheffler , Gabriele Lohmann

There is a prevalent opinion that diffusion-based models outperform GAN-based counterparts in the Image Super Resolution (ISR) problem. However, in most studies, diffusion-based ISR models employ larger networks and are trained longer than…

Image and Video Processing · Electrical Eng. & Systems 2024-10-29 Denis Kuznedelev , Valerii Startsev , Daniil Shlenskii , Sergey Kastryulin

Diffusion-based super-resolution (SR) is a key component in video generation and video restoration, but is slow and expensive, limiting scalability to higher resolutions and longer videos. Our key insight is that many regions in video are…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Rohan Choudhury , Shanchuan Lin , Jianyi Wang , Hao Chen , Qi Zhao , Feng Cheng , Lu Jiang , Kris Kitani , Laszlo A. Jeni

Diffusion-based super-resolution (SR) models have recently garnered significant attention due to their potent restoration capabilities. But conventional diffusion models perform noise sampling from a single distribution, constraining their…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Chengcheng Wang , Zhiwei Hao , Yehui Tang , Jianyuan Guo , Yujie Yang , Kai Han , Yunhe Wang

Single image super-resolution (SISR) has played an important role in the field of image processing. Recent generative adversarial networks (GANs) can achieve excellent results on low-resolution images. However, there are little literatures…

Image and Video Processing · Electrical Eng. & Systems 2026-01-14 Ziang Wu , Xuanyu Zhang , Yinbo Yu , Qi Zhu , Jerry Chun-Wei Lin , Chunwei Tian

High-resolution (HR) magnetic resonance images (MRI) provide detailed anatomical information important for clinical application and quantitative image analysis. However, HR MRI conventionally comes at the cost of longer scan time, smaller…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Yuhua Chen , Feng Shi , Anthony G. Christodoulou , Zhengwei Zhou , Yibin Xie , Debiao Li

Dispersive Fourier transformation is a powerful technique in which spectral information is mapped into the time domain using chromatic dispersion. It replaces a spectrometer with an electronic digitizer, and enables real-time spectroscopy.…

Optics · Physics 2009-11-13 J. Chou , D. R. Solli , B. Jalali

Versatile audio super-resolution (SR) is the challenging task of restoring high-frequency components from low-resolution audio with sampling rates between 4kHz and 32kHz in various domains such as music, speech, and sound effects. Previous…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-22 Jaekwon Im , Juhan Nam

Smartphone cameras have become ubiquitous imaging tools, yet their small sensors and compact optics often limit spatial resolution and introduce distortions. Combining information from multiple low-resolution (LR) frames to produce a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Fadeel Sher Khan , Joshua Ebenezer , Hamid Sheikh , Seok-Jun Lee

Super resolution offers a way to harness medium even lowresolution but historically valuable remote sensing image archives. Generative models, especially diffusion models, have recently been applied to remote sensing super resolution…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Songxi Yang , Tang Sui , Qunying Huang

Deep learning based methods have achieved significant success in the task of single image reflection removal (SIRR). However, the majority of these methods are focused on High-Definition/Standard-Definition (HD/SD) images, while ignoring…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Zhenyuan Zhang , Zhenbo Song , Kaihao Zhang , Zhaoxin Fan , Jianfeng Lu