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Real-world data processing problems often involve various image modalities associated with a certain scene, including RGB images, infrared images or multi-spectral images. The fact that different image modalities often share certain…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Pingfan Song , Xin Deng , João F. C. Mota , Nikos Deligiannis , Pier Luigi Dragotti , Miguel R. D. Rodrigues

Super-resolution (SR) is an ill-posed inverse problem with many feasible solutions consistent with a given low-resolution image. On one hand, regressive SR models aim to balance fidelity and perceptual quality to yield a single solution,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Cansu Korkmaz , Ahmet Murat Tekalp , Zafer Dogan

The proposal of perceptual loss solves the problem that per-pixel difference loss function causes the reconstructed image to be overly-smooth, which acquires a significant progress in the field of single image super-resolution…

Image and Video Processing · Electrical Eng. & Systems 2022-01-19 Jie Song , Huawei Yi , Wenqian Xu , Xiaohui Li , Bo Li , Yuanyuan Liu

Scene text recognition has witnessed rapid development with the advance of convolutional neural networks. Nonetheless, most of the previous methods may not work well in recognizing text with low resolution which is often seen in natural…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Wenjia Wang , Enze Xie , Peize Sun , Wenhai Wang , Lixun Tian , Chunhua Shen , Ping Luo

Blind image restoration remains a significant challenge in low-level vision tasks. Recently, denoising diffusion models have shown remarkable performance in image synthesis. Guided diffusion models, leveraging the potent generative priors…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Jun Xiao , Zihang Lyu , Hao Xie , Cong Zhang , Yakun Ju , Changjian Shui , Kin-Man Lam

In this work, we present SupResDiffGAN, a novel hybrid architecture that combines the strengths of Generative Adversarial Networks (GANs) and diffusion models for super-resolution tasks. By leveraging latent space representations and…

Image and Video Processing · Electrical Eng. & Systems 2025-04-21 Dawid Kopeć , Wojciech Kozłowski , Maciej Wizerkaniuk , Dawid Krutul , Jan Kocoń , Maciej Zięba

Diffusion models has emerged as a powerful framework for tasks like image controllable generation and dense prediction. However, existing models often struggle to capture underlying semantics (e.g., edges, textures, shapes) and effectively…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Zhong Ji , Weilong Cao , Yan Zhang , Yanwei Pang , Jungong Han , Xuelong Li

In this paper, we introduce the problem of zero-shot text-guided exploration of the solutions to open-domain image super-resolution. Our goal is to allow users to explore diverse, semantically accurate reconstructions that preserve data…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Kanchana Vaishnavi Gandikota , Paramanand Chandramouli

Pre-trained text-to-image (T2I) diffusion models have shown strong potential for real-world image super-resolution (Real-ISR), owing to their noise-started generation process that enables realistic texture synthesis and captures the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Wei Zhu , Kai Zhang , Yu Zheng , Lei Luo , Yong Guo , Jian Yang

Synthetic Aperture Radar (SAR) provides all-weather, high-resolution imaging capabilities, but its unique imaging mechanism often requires expert interpretation, limiting its widespread applicability. Translating SAR images into more easily…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Xinyu Bai , Feng Xu

Diffusion-based methods have shown great promise in single image super-resolution (SISR); however, existing approaches often produce blurred fine details due to insufficient guidance in the high-frequency domain. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Chao Yang , Boqian Zhang , Jinghao Xu , Guang Jiang

Diffusion-based approaches have recently driven remarkable progress in real-world image super-resolution (SR). However, existing methods still struggle to simultaneously preserve fine details and ensure high-fidelity reconstruction, often…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Aro Kim , Myeongjin Jang , Chaewon Moon , Youngjin Shin , Jinwoo Jeong , Sang-hyo Park

To overcome inherent hardware limitations of hyperspectral imaging systems with respect to their spatial resolution, fusion-based hyperspectral image (HSI) super-resolution is attracting increasing attention. This technique aims to fuse a…

Image and Video Processing · Electrical Eng. & Systems 2022-01-25 Xiuheng Wang , Jie Chen , Cédric Richard

Image restoration (IR) has been an indispensable and challenging task in the low-level vision field, which strives to improve the subjective quality of images distorted by various forms of degradation. Recently, the diffusion model has…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Xin Li , Yulin Ren , Xin Jin , Cuiling Lan , Xingrui Wang , Wenjun Zeng , Xinchao Wang , Zhibo Chen

In this paper, we present D2C-SR, a novel framework for the task of real-world image super-resolution. As an ill-posed problem, the key challenge in super-resolution related tasks is there can be multiple predictions for a given…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Youwei Li , Haibin Huang , Lanpeng Jia , Haoqiang Fan , Shuaicheng Liu

Diffusion MRI (dMRI) angular super-resolution (ASR) aims to reconstruct high-angular-resolution (HAR) signals from limited low-angular-resolution (LAR) data without prolonging scan time. However, existing methods are limited in recovering…

Image and Video Processing · Electrical Eng. & Systems 2025-09-10 Mu Nan , Taohui Xiao , Ruoyou Wu , Shoujun Yu , Ye Li , Hairong Zheng , Shanshan Wang

Existing super-resolution (SR) models primarily focus on restoring local texture details, often neglecting the global semantic information within the scene. This oversight can lead to the omission of crucial semantic details or the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Haoze Sun , Wenbo Li , Jianzhuang Liu , Haoyu Chen , Renjing Pei , Xueyi Zou , Youliang Yan , Yujiu Yang

While diffusion models have achieved state-of-the-art performance in Image Super-Resolution (SR), their prohibitive computational and memory demands restrict their training and inference to fixed-size inputs. The standard workaround to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Shoukun Sun , Zhe Wang , Xiang Que , Jiyin Zhang , Xiaogang Ma

Capsule endoscopy has enabled minimally invasive gastrointestinal imaging, but its clinical utility is limited by the inherently low resolution of captured images due to hardware, power, and transmission constraints. This limitation hampers…

Image and Video Processing · Electrical Eng. & Systems 2025-12-30 Haozhe Jia

While supervised stereo matching and monocular depth estimation have advanced significantly with learning-based algorithms, self-supervised methods using stereo images as supervision signals have received relatively less focus and require…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Zihua Liu , Yizhou Li , Songyan Zhang , Masatoshi Okutomi