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Recent generative methods for single-shot high dynamic range (HDR) image reconstruction show promising results, but often struggle with preserving fidelity to the input image. They require separate models to handle highlights and shadows,…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Chinmay Talegaonkar , Jinshi He , Christopher McKenna , Nicholas Antipa

In the last decade, computer vision has witnessed the establishment of various training and learning approaches. Techniques like adversarial learning, contrastive learning, diffusion denoising learning, and ordinary reconstruction learning…

Low-Rank Adaptation (LoRA) and other parameter-efficient fine-tuning (PEFT) methods provide low-memory, storage-efficient solutions for personalizing text-to-image models. However, these methods offer little to no improvement in wall-clock…

机器学习 · 计算机科学 2024-12-04 Ethan Smith , Rami Seid , Alberto Hojel , Paramita Mishra , Jianbo Wu

Diffusion priors have been used for blind face restoration (BFR) by fine-tuning diffusion models (DMs) on restoration datasets to recover low-quality images. However, the naive application of DMs presents several key limitations. (i) The…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Senmao Li , Kai Wang , Joost van de Weijer , Fahad Shahbaz Khan , Chun-Le Guo , Shiqi Yang , Yaxing Wang , Jian Yang , Ming-Ming Cheng

MRI synthesis promises to mitigate the challenge of missing MRI modality in clinical practice. Diffusion model has emerged as an effective technique for image synthesis by modelling complex and variable data distributions. However, most…

图像与视频处理 · 电气工程与系统科学 2023-03-27 Lan Jiang , Ye Mao , Xi Chen , Xiangfeng Wang , Chao Li

Deep learning-based image compression algorithms typically focus on designing encoding and decoding networks and improving the accuracy of entropy model estimation to enhance the rate-distortion (RD) performance. However, few algorithms…

图像与视频处理 · 电气工程与系统科学 2024-10-08 Junhui Li , Jutao Li , Xingsong Hou , Huake Wang

The Segment Anything Model (SAM) stands as a foundational framework for image segmentation. While it exhibits remarkable zero-shot generalization in typical scenarios, its advantage diminishes when applied to specialized domains like…

计算机视觉与模式识别 · 计算机科学 2024-02-01 Zihan Zhong , Zhiqiang Tang , Tong He , Haoyang Fang , Chun Yuan

In this paper, we present a novel reconstruction method for diffuse optical spectroscopic imaging with a commonly used tissue model of optical absorption and scattering. It is based on linearization and group sparsity, which allows…

数值分析 · 数学 2019-03-06 Habib Ammari , Bangti Jin , Wenlong Zhang

In this paper, we propose LSRNA, a novel framework for higher-resolution (exceeding 1K) image generation using diffusion models by leveraging super-resolution directly in the latent space. Existing diffusion models struggle with scaling…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Jinho Jeong , Sangmin Han , Jinwoo Kim , Seon Joo Kim

In practical applications of tomographic imaging, there are often challenges for image reconstruction due to under-sampling and insufficient data. In computed tomography (CT), for example, image reconstruction from few views would enable…

医学物理 · 物理学 2009-04-30 Emil Y. Sidky , Chien-Min Kao , Xiaochuan Pan

Purpose: The Unadjusted Langevin Algorithm (ULA) in combination with diffusion models can generate high quality MRI reconstructions with uncertainty estimation from highly undersampled k-space data. However, sampling methods such as…

医学物理 · 物理学 2026-05-26 Moritz Blumenthal , Tina Holliber , Jonathan I. Tamir , Martin Uecker

Diffusion-based video super-resolution (VSR) methods deliver strong perceptual quality but are often unsuitable for latency-sensitive scenarios due to reliance on future frames and expensive multi-step denoising. We propose Stream-DiffVSR,…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Hau-Shiang Shiu , Chin-Yang Lin , Zhixiang Wang , Chi-Wei Hsiao , Po-Fan Yu , Yu-Chih Chen , Yu-Lun Liu

Diffusion models have significantly advanced video super-resolution (VSR) by enhancing perceptual quality, largely through elaborately designed temporal modeling to ensure inter-frame consistency. However, existing methods usually suffer…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Xijun Wang , Xin Li , Bingchen Li , Zhibo Chen

Image synthesis approaches, e.g., generative adversarial networks, have been popular as a form of data augmentation in medical image analysis tasks. It is primarily beneficial to overcome the shortage of publicly accessible data and…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Shiyi Du , Xiaosong Wang , Yongyi Lu , Yuyin Zhou , Shaoting Zhang , Alan Yuille , Kang Li , Zongwei Zhou

Multi-tracer positron emission tomography (PET) provides critical insights into diverse neuropathological processes such as tau accumulation, neuroinflammation, and $\beta$-amyloid deposition in the brain, making it indispensable for…

图像与视频处理 · 电气工程与系统科学 2026-02-26 Minhui Yu , Yongheng Sun , David S. Lalush , Jason P Mihalik , Pew-Thian Yap , Mingxia Liu

Sparse-view computed tomography (CT) is a practical solution to reduce radiation dose, but the resulting ill-posed inverse problem poses significant challenges for accurate image reconstruction. Although deep learning and diffusion-based…

图像与视频处理 · 电气工程与系统科学 2025-06-10 Changsheng Fang , Yongtong Liu , Bahareh Morovati , Shuo Han , Yu Shi , Li Zhou , Shuyi Fan , Hengyong Yu

This paper investigates the application of Low-Rank Adaptation (LoRA) to small models for cross-domain few-shot object detection in aerial images. Originally designed for large-scale models, LoRA helps mitigate overfitting, making it a…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Hicham Talaoubrid , Anissa Mokraoui , Ismail Ben Ayed , Axel Prouvost , Sonimith Hang , Monit Korn , Rémi Harvey

Positron emission tomography (PET) reconstruction is a critical challenge in molecular imaging, often hampered by noise amplification, structural blurring, and detail loss due to sparse sampling and the ill-posed nature of inverse problems.…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Mengxiao Geng , Zijie Chen , Ran Hong , Bingxuan Li , Qiegen Liu

By integrating the generative strengths of diffusion models with the representation capabilities of frequency-domain attention, DFAM effectively enhances reconstruction performance under low-SNR condi-tions. Experimental results demonstrate…

医学物理 · 物理学 2025-07-25 Xin Xie , Yu Guan , Zhuoxu Cui , Dong Liang , Qiegen Liu

Image denoising is a fundamental and challenging task in the field of computer vision. Most supervised denoising methods learn to reconstruct clean images from noisy inputs, which have intrinsic spectral bias and tend to produce…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Yujin Wang , Lingen Li , Tianfan Xue , Jinwei Gu
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