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Faithful image super-resolution (SR) not only needs to recover images that appear realistic, similar to image generation tasks, but also requires that the restored images maintain fidelity and structural consistency with the input. To this…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Junyang Chen , Jinshan Pan , Jiangxin Dong

Low-field to high-field MRI synthesis has emerged as a cost-effective strategy to enhance image quality under hardware and acquisition constraints, particularly in scenarios where access to high-field scanners is limited or impractical.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Zhenxuan Zhang , Peiyuan Jing , Ruicheng Yuan , Liwei Hu , Anbang Wang , Fanwen Wang , Yinzhe Wu , Kh Tohidul Islam , Zhaolin Chen , Zi Wang , Peter Lally , Guang Yang

Diffusion models generate data by learning to reverse a forward process, where samples are progressively perturbed with Gaussian noise according to a predefined noise schedule. From a geometric perspective, each noise schedule corresponds…

Image and Video Processing · Electrical Eng. & Systems 2025-10-21 Teng Zhang , Hongxu Jiang , Kuang Gong , Wei Shao

With the rapid advancement of remote sensing technology, super-resolution image reconstruction is of great research and practical significance. Existing deep learning methods have made progress but still face limitations in handling complex…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Shijie Lyu

The planning, management, and resource scheduling of cellular mobile networks require joint estimation of mobile traffic across different layers and nodes. Mobile traffic generation can proactively anticipate user demands and capture the…

Networking and Internet Architecture · Computer Science 2025-11-26 Xiaoqian Qi , Haoye Chai , Sichang Liu , Lei Yue , Raoyuan Pan , Yue Wang , Yong Li

Low Dynamic Range (LDR) to High Dynamic Range (HDR) image translation is a fundamental task in many computational vision problems. Numerous data-driven methods have been proposed to address this problem; however, they lack explicit modeling…

Graphics · Computer Science 2025-09-23 Hrishav Bakul Barua , Kalin Stefanov , Ganesh Krishnasamy , KokSheik Wong , Abhinav Dhall

Hyperspectral image (HSI) restoration aims at recovering clean images from degraded observations and plays a vital role in downstream tasks. Existing model-based methods have limitations in accurately modeling the complex image…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Li Pang , Xiangyu Rui , Long Cui , Hongzhong Wang , Deyu Meng , Xiangyong Cao

High Dynamic Range (HDR) images can be recovered from several Low Dynamic Range (LDR) images by existing Deep Neural Networks (DNNs) techniques. Despite the remarkable progress, DNN-based methods still generate ghosting artifacts when LDR…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Qingsen Yan , Tao Hu , Yuan Sun , Hao Tang , Yu Zhu , Wei Dong , Luc Van Gool , Yanning Zhang

Magnetic Resonance Imaging (MRI) reconstruction is essential in medical diagnostics. As the latest generative models, diffusion models (DMs) have struggled to produce high-fidelity images due to their stochastic nature in image domains.…

Image and Video Processing · Electrical Eng. & Systems 2025-07-01 Lingtong Zhang , Mengdie Song , Xiaohan Hao , Huayu Mai , Bensheng Qiu

We introduce a novel framework for metric depth estimation that enhances pretrained diffusion-based monocular depth estimation (DB-MDE) models with stereo vision guidance. While existing DB-MDE methods excel at predicting relative depth,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Tuan Pham , Thanh-Tung Le , Xiaohui Xie , Stephan Mandt

Accurate estimation of motion information is crucial in diverse computational imaging and computer vision applications. Researchers have investigated various methods to extract motion information from a single blurred image, including blur…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Wontae Choi , Jaelin Lee , Hyung Sup Yun , Byeungwoo Jeon , Il Yong Chun

Latent Diffusion models (LDMs) have achieved remarkable results in synthesizing high-resolution images. However, the iterative sampling process is computationally intensive and leads to slow generation. Inspired by Consistency Models (song…

Computer Vision and Pattern Recognition · Computer Science 2023-10-09 Simian Luo , Yiqin Tan , Longbo Huang , Jian Li , Hang Zhao

Diffusion models (DMs) excel in image generation but suffer from slow inference and training-inference discrepancies. Although gradient-based solvers for DMs accelerate denoising inference, they often lack theoretical foundations in…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Shigui Li , Wei Chen , Delu Zeng

Advances in endoscopy use in surgeries face challenges like inadequate lighting. Deep learning, notably the Denoising Diffusion Probabilistic Model (DDPM), holds promise for low-light image enhancement in the medical field. However, DDPMs…

Image and Video Processing · Electrical Eng. & Systems 2024-05-20 Tong Chen , Qingcheng Lyu , Long Bai , Erjian Guo , Huxin Gao , Xiaoxiao Yang , Hongliang Ren , Luping Zhou

Score matching with Langevin dynamics (SMLD) method has been successfully applied to accelerated MRI. However, the hyperparameters in the sampling process require subtle tuning, otherwise the results can be severely corrupted by…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xiaoyu Qiao , Weisheng Li , Bin Xiao , Yuping Huang , Lijian Yang

Enhancing a low-light noisy RAW image into a well-exposed and clean sRGB image is a significant challenge for modern digital cameras. Prior approaches have difficulties in recovering fine-grained details and true colors of the scene under…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Qiang Wen , Zhefan Rao , Yazhou Xing , Qifeng Chen

High dynamic range (HDR) imaging is an indispensable technique in modern photography. Traditional methods focus on HDR reconstruction from multiple images, solving the core problems of image alignment, fusion, and tone mapping, yet having a…

Image and Video Processing · Electrical Eng. & Systems 2022-10-31 Phuoc-Hieu Le , Quynh Le , Rang Nguyen , Binh-Son Hua

Diffusion models (DM) have achieved remarkable promise in image super-resolution (SR). However, most of them are tailored to solving non-blind inverse problems with fixed known degradation settings, limiting their adaptability to real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Feng Li , Yixuan Wu , Zichao Liang , Runmin Cong , Huihui Bai , Yao Zhao , Meng Wang

Removing degradation from document images not only improves their visual quality and readability, but also enhances the performance of numerous automated document analysis and recognition tasks. However, existing regression-based methods…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Zongyuan Yang , Baolin Liu , Yongping Xiong , Lan Yi , Guibin Wu , Xiaojun Tang , Ziqi Liu , Junjie Zhou , Xing Zhang

The performance of single image super-resolution depends heavily on how to generate and complement high-frequency details to low-resolution images. Recently, diffusion-based DDPM models exhibit great potential in generating high-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Xingjian Wang , Li Chai , Jiming Chen