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With the rapid advancement of diffusion-based generative models, Stable Diffusion (SD) has emerged as a state-of-the-art framework for high-fidelity im-age synthesis. However, existing SD models suffer from suboptimal feature aggregation,…

图形学 · 计算机科学 2025-07-21 Zhen-Qi Chen , Yuan-Fu Yang

The presence of residual and dense neural networks which greatly promotes the development of image Super-Resolution(SR) have witnessed a lot of impressive results. Depending on our observation, although more layers and connections could…

图像与视频处理 · 电气工程与系统科学 2020-02-21 Yuan Ma , Kewen Liu , Hongxia Xiong , Panpan Fang , Xiaojun Li , Yalei Chen , Chaoyang Liu

Generative models now produce images with such stunning realism that they can easily deceive the human eye. While this progress unlocks vast creative potential, it also presents significant risks, such as the spread of misinformation.…

计算机视觉与模式识别 · 计算机科学 2026-01-29 Yichi Zhang , Xiaogang Xu

Most of the existing learning-based single image superresolution (SISR) methods are trained and evaluated on simulated datasets, where the low-resolution (LR) images are generated by applying a simple and uniform degradation (i.e., bicubic…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Jianrui Cai , Hui Zeng , Hongwei Yong , Zisheng Cao , Lei Zhang

Despite recent advances, single-image super-resolution (SR) remains challenging, especially in real-world scenarios with complex degradations. Diffusion-based SR methods, particularly those built on Stable Diffusion, leverage strong…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Fabio D'Oronzio , Federico Putamorsi , Leonardo Zini , Marcella Cornia , Lorenzo Baraldi

Capturing High Dynamic Range (HDR) scenery using 8-bit cameras often suffers from over-/underexposure, loss of fine details due to low bit-depth compression, skewed color distributions, and strong noise in dark areas. Traditional LDR image…

图像与视频处理 · 电气工程与系统科学 2024-06-14 Baiang Li , Sizhuo Ma , Yanhong Zeng , Xiaogang Xu , Youqing Fang , Zhao Zhang , Jian Wang , Kai Chen

Although recent research applying text-to-image (T2I) diffusion models to real-world super-resolution (SR) has achieved remarkable progress, the misalignment of their targets leads to a suboptimal trade-off between inference speed and…

计算机视觉与模式识别 · 计算机科学 2026-02-12 Yan Wang , Shijie Zhao , Kexin Zhang , Junlin Li , Li Zhang

Recent advancements in diffusion models have significantly improved performance in super-resolution (SR) tasks. However, previous research often overlooks the fundamental differences between SR and general image generation. General image…

图像与视频处理 · 电气工程与系统科学 2024-10-31 Hanlin Wu , Jiangwei Mo , Xiaohui Sun , Jie Ma

Scene Text Image Super-Resolution (STISR) aims to enhance the resolution and legibility of text within low-resolution (LR) images, consequently elevating recognition accuracy in Scene Text Recognition (STR). Previous methods predominantly…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Yuxuan Zhou , Liangcai Gao , Zhi Tang , Baole Wei

Single image super-resolution (SISR) aims to recover the high-resolution (HR) image from its low-resolution (LR) input image. With the development of deep learning, SISR has achieved great progress. However, It is still a challenge to…

图像与视频处理 · 电气工程与系统科学 2020-10-01 Yingxue Pang , Xin Li , Xin Jin , Yaojun Wu , Jianzhao Liu , Sen Liu , Zhibo Chen

Generative adversarial networks (GAN) and generative diffusion models (DM) have been widely used in real-world image super-resolution (Real-ISR) to enhance the image perceptual quality. However, these generative models are prone to…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Du Chen , Zhengqiang Zhang , Jie Liang , Lei Zhang

Single image super-resolution (SISR) algorithms reconstruct high-resolution (HR) images with their low-resolution (LR) counterparts. It is desirable to develop image quality assessment (IQA) methods that can not only evaluate and compare…

图像与视频处理 · 电气工程与系统科学 2021-05-18 Wei Zhou , Zhou Wang , Zhibo Chen

Due to the significant information loss in low-resolution (LR) images, it has become extremely challenging to further advance the state-of-the-art of single image super-resolution (SISR). Reference-based super-resolution (RefSR), on the…

计算机视觉与模式识别 · 计算机科学 2019-03-11 Zhifei Zhang , Zhaowen Wang , Zhe Lin , Hairong Qi

By lifting the pre-trained 2D diffusion models into Neural Radiance Fields (NeRFs), text-to-3D generation methods have made great progress. Many state-of-the-art approaches usually apply score distillation sampling (SDS) to optimize the…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Yuze He , Yushi Bai , Matthieu Lin , Jenny Sheng , Yubin Hu , Qi Wang , Yu-Hui Wen , Yong-Jin Liu

Despite their wide-spread success, Text-to-Image models (T2I) still struggle to produce images that are both aesthetically pleasing and faithful to the user's input text. We introduce DreamSync, a model-agnostic training algorithm by design…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Jiao Sun , Deqing Fu , Yushi Hu , Su Wang , Royi Rassin , Da-Cheng Juan , Dana Alon , Charles Herrmann , Sjoerd van Steenkiste , Ranjay Krishna , Cyrus Rashtchian

Text-to-image (T2I) models have recently experienced rapid development, achieving astonishing performance in terms of fidelity and textual alignment capabilities. However, given a long paragraph (up to 512 words), these generation models…

计算机视觉与模式识别 · 计算机科学 2025-05-07 Weijia Wu , Zhuang Li , Yefei He , Mike Zheng Shou , Chunhua Shen , Lele Cheng , Yan Li , Tingting Gao , Di Zhang

Hand-held light field (LF) cameras often exhibit low spatial resolution due to the inherent trade-off between spatial and angular dimensions. Existing supervised learning-based LF spatial super-resolution (SR) methods, which rely on…

图像与视频处理 · 电气工程与系统科学 2025-12-09 Jianxin Lei , Dongze Wu , Chengcai Xu , Hongcheng Gu , Guangquan Zhou , Junhui Hou , Ping Zhou

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…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Ce Wang , Wanjie Sun

The generation and enhancement of satellite imagery are critical in remote sensing, requiring high-quality, detailed images for accurate analysis. This research introduces a two-stage diffusion model methodology for synthesizing…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Ahmad Sebaq , Mohamed ElHelw

Modern text-to-image (T2I) diffusion models can generate images with remarkable realism and creativity. These advancements have sparked research in fake image detection and attribution, yet prior studies have not fully explored the…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Katherine Xu , Lingzhi Zhang , Jianbo Shi