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Image restoration algorithms for atmospheric turbulence are known to be much more challenging to design than traditional ones such as blur or noise because the distortion caused by the turbulence is an entanglement of spatially varying…

Image and Video Processing · Electrical Eng. & Systems 2022-07-26 Zhiyuan Mao , Ajay Jaiswal , Zhangyang Wang , Stanley H. Chan

Ground based long-range passive imaging systems often suffer from degraded image quality due to a turbulent atmosphere. While methods exist for removing such turbulent distortions, many are limited to static sequences which cannot be…

Image and Video Processing · Electrical Eng. & Systems 2020-09-02 Zhiyuan Mao , Nicholas Chimitt , Stanley Chan

Existing diffusion-based video super-resolution (VSR) methods are susceptible to introducing complex degradations and noticeable artifacts into high-resolution videos due to their inherent randomness. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Shijun Shi , Jing Xu , Lijing Lu , Zhihang Li , Kai Hu

Recent advancements in multivariate time series forecasting have been propelled by Linear-based, Transformer-based, and Convolution-based models, with Transformer-based architectures gaining prominence for their efficacy in temporal and…

Machine Learning · Computer Science 2024-09-27 Chaolv Zeng , Zhanyu Liu , Guanjie Zheng , Linghe Kong

We address the problem of restoring a high-quality image from an observed image sequence strongly distorted by atmospheric turbulence. A novel algorithm is proposed in this paper to reduce geometric distortion as well as…

Computer Vision and Pattern Recognition · Computer Science 2017-09-20 Chun Pong Lau , Yu Hin Lai , Lok Ming Lui

Recent efforts on image restoration have focused on developing "all-in-one" models that can handle different degradation types and levels within single model. However, most of mainstream Transformer-based ones confronted with dilemma…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Aiwen Jiang , Hourong Chen , Zhiwen Chen , Jihua Ye , Mingwen Wang

While Fourier ptychography (FP) offers super-resolution for macroscopic imaging, its real-world application is severely hampered by atmospheric turbulence, a challenge largely unaddressed in existing macroscopic FP research operating under…

Video anomaly detection (VAD) methods are mostly CNN-based or Transformer-based, achieving impressive results, but the focus on detection accuracy often comes at the expense of inference speed. The emergence of state space models in…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Jiahao Lyu , Minghua Zhao , Jing Hu , Xuewen Huang , Yifei Chen , Shuangli Du

Turbulence mitigation (TM) is highly ill-posed due to the stochastic nature of atmospheric turbulence. Most methods rely on multiple frames recorded by conventional cameras to capture stable patterns in natural scenarios. However, they…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Xiaoran Zhang , Jian Ding , Yuxing Duan , Haoyue Liu , Gang Chen , Yi Chang , Luxin Yan

Physical field reconstruction (PFR) aims to predict the state distribution of physical quantities (e.g., velocity, pressure, and temperature) based on limited sensor measurements. It plays a critical role in domains such as fluid dynamics…

Machine Learning · Computer Science 2025-05-23 Jiahuan Long , Wenzhe Zhang , Ning Wang , Tingsong Jiang , Wen Yao

Recent Transformer-based diffusion models have shown remarkable performance, largely attributed to the ability of the self-attention mechanism to accurately capture both global and local contexts by computing all-pair interactions among…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Yunxiang Fu , Chaoqi Chen , Yizhou Yu

We introduce a novel state-space architecture for diffusion models, effectively harnessing spatial and frequency information to enhance the inductive bias towards local features in input images for image generation tasks. While state-space…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Hao Phung , Quan Dao , Trung Dao , Hoang Phan , Dimitris Metaxas , Anh Tran

Traffic flow estimation (TFE) is crucial for urban intelligent traffic systems. While traditional on-road detectors are hindered by limited coverage and high costs, cloud computing and data mining of vehicular network data, such as driving…

Artificial Intelligence · Computer Science 2024-07-12 Doncheng Yuan , Jianzhe Xue , Jinshan Su , Wenchao Xu , Haibo Zhou

The quadratic computational complexity of self-attention in diffusion transformers (DiT) introduces substantial computational costs in high-resolution image generation. While the linear-complexity Mamba model emerges as a potential…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Yuan Yao , Yicong Hong , Difan Liu , Long Mai , Feng Liu , Jiebo Luo

Noise is an inevitable aspect of point cloud acquisition, necessitating filtering as a fundamental task within the realm of 3D vision. Existing learning-based filtering methods have shown promising capabilities on small-scale synthetic or…

Multimedia · Computer Science 2025-01-10 Qingyuan Zhou , Weidong Yang , Ben Fei , Jingyi Xu , Rui Zhang , Keyi Liu , Yeqi Luo , Ying He

Diffusion models currently demonstrate impressive performance over various generative tasks. Recent work on image diffusion highlights the strong capabilities of Mamba (state space models) due to its efficient handling of long-range…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Jiaxu Liu , Li Li , Hubert P. H. Shum , Toby P. Breckon

Foundation models, now powering most of the exciting applications in deep learning, are almost universally based on the Transformer architecture and its core attention module. Many subquadratic-time architectures such as linear attention,…

Machine Learning · Computer Science 2024-06-03 Albert Gu , Tri Dao

The accelerated MRI reconstruction poses a challenging ill-posed inverse problem due to the significant undersampling in k-space. Deep neural networks, such as CNNs and ViTs, have shown substantial performance improvements for this task…

Image and Video Processing · Electrical Eng. & Systems 2025-04-01 Yucong Meng , Zhiwei Yang , Zhijian Song , Yonghong Shi

Recent years have witnessed significant advancements in light field image super-resolution (LFSR) owing to the progress of modern neural networks. However, these methods often face challenges in capturing long-range dependencies (CNN-based)…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Wang xia , Yao Lu , Shunzhou Wang , Ziqi Wang , Peiqi Xia , Tianfei Zhou

The outdoor vision systems are frequently contaminated by rain streaks and raindrops, which significantly degenerate the performance of visual tasks and multimedia applications. The nature of videos exhibits redundant temporal cues for rain…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Hongtao Wu , Yijun Yang , Huihui Xu , Weiming Wang , Jinni Zhou , Lei Zhu