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High-speed image acquisition in light microscopy is essential for a wide range of applications, including observing dynamic biological processes and enabling high-throughput sample analysis. However, traditional imaging speeds are often…

Classifying hyperspectral images (HSIs) is a complex task in remote sensing due to the high-dimensional nature and volume of data involved. To address these challenges, we propose the Spectral-Spatial non-Linear Model, a novel framework…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Judy X Yang , Jing Wang , Zekun Long , Chenhong Sui , Jun Zhou

Purpose: To develop a deep learning method on a nonlinear manifold to explore the temporal redundancy of dynamic signals to reconstruct cardiac MRI data from highly undersampled measurements. Methods: Cardiac MR image reconstruction is…

图像与视频处理 · 电气工程与系统科学 2021-04-05 Ziwen Ke , Zhuo-Xu Cui , Wenqi Huang , Jing Cheng , Sen Jia , Haifeng Wang , Xin Liu , Hairong Zheng , Leslie Ying , Yanjie Zhu , Dong Liang

We propose to enhance the performance of localized plasmon structured illumination microscopy (LP-SIM) via intensity correlations. LP-SIM uses sub-wavelength illumination patterns to encode high spatial frequency information. It can enhance…

光学 · 物理学 2021-03-22 Anton Classen , Xinghua Liu , Aleksei M. Zheltikov , Girish S. Agarwal

Spiral acquisitions are preferred in real-time MRI because of their time efficiency. A fundamental limitation of spirals is image blurring due to off-resonance, which degrades image quality significantly at air-tissue boundaries. Here, we…

图像与视频处理 · 电气工程与系统科学 2020-06-02 Yongwan Lim , Shrikanth S Narayanan , Krishna S Nayak

Purpose: The goal of this work is to extend the capabilities of RAKI, a k-space interpolating neural network, to reconstruct high-quality images from in-plane accelerated simultaneous multislice imaging acquisitions. This method is referred…

医学物理 · 物理学 2019-02-25 Nikolai J. Mickevicius , Eric S. Paulson , L. Tugan Muftuler , Andrew S. Nencka

In the realm of medical 3D data, such as CT and MRI images, prevalent anisotropic resolution is characterized by high intra-slice but diminished inter-slice resolution. The lowered resolution between adjacent slices poses challenges,…

图像与视频处理 · 电气工程与系统科学 2024-04-09 Wei Fang , Yuxing Tang , Heng Guo , Mingze Yuan , Tony C. W. Mok , Ke Yan , Jiawen Yao , Xin Chen , Zaiyi Liu , Le Lu , Ling Zhang , Minfeng Xu

The prevailing deep learning-based methods of predicting cardiac segmentation involve reconstructed magnetic resonance (MR) images. The heavy dependency of segmentation approaches on image quality significantly limits the acceleration rate…

图像与视频处理 · 电气工程与系统科学 2025-07-03 Yundi Zhang , Nil Stolt-Ansó , Jiazhen Pan , Wenqi Huang , Kerstin Hammernik , Daniel Rueckert

Physics-driven deep learning (PD-DL) models have proven to be a powerful approach for improved reconstruction of rapid MRI scans. In order to train these models in scenarios where fully-sampled reference data is unavailable, self-supervised…

图像与视频处理 · 电气工程与系统科学 2025-09-08 Yaşar Utku Alçalar , Mehmet Akçakaya

This work presents a lightweight super-resolution (LiteSR) neural network for depth and intensity images acquired from a consumer-grade single-photon avalanche diode (SPAD) array with a 48x32 spatial resolution. The proposed framework…

图像与视频处理 · 电气工程与系统科学 2026-03-31 Zhenya Zang , Xingda Li , David Day Uei Li

Performing magnetic resonance imaging (MRI) reconstruction from under-sampled k-space data can accelerate the procedure to acquire MRI scans and reduce patients' discomfort. The reconstruction problem is usually formulated as a denoising…

图像与视频处理 · 电气工程与系统科学 2023-12-11 Tianqi Xiang , Wenjun Yue , Yiqun Lin , Jiewen Yang , Zhenkun Wang , Xiaomeng Li

In fluid flow imaging, intensity gradients are a good measure of spatial variations in scalar properties, which play an important role in controlling transport processes. However, current flow imaging techniques exhibit system-limited…

光学 · 物理学 2025-10-22 Hy Cao , Abhishek Saha , Lisa V. Poulikakos

Intra-frame motion blurring, as a major challenge in free-breathing dynamic MRI, can be reduced if high temporal resolution can be achieved. To address this challenge, this work proposes a highly-accelerated 4D (3D+time) real-time MRI…

医学物理 · 物理学 2022-08-12 Li Feng

Objective. Imaging dynamic object with high temporal resolution is challenging in magnetic resonance imaging (MRI). Partial separable (PS) model was proposed to improve the imaging quality by reducing the degrees of freedom of the inverse…

图像与视频处理 · 电气工程与系统科学 2023-05-24 Zhongsen Li , Aiqi Sun , Chuyu Liu , Haining Wei , Shuai Wang , Mingzhu Fu , Rui Li

Hyperspectral image (HI) analysis approaches have recently become increasingly complex and sophisticated. Recently, the combination of spectral-spatial information and superpixel techniques have addressed some hyperspectral data issues,…

图像与视频处理 · 电气工程与系统科学 2024-07-23 Luciano Carvalho Ayres , Sérgio José Melo de Almeida , José Carlos Moreira Bermudez , Ricardo Augusto Borsoi

Magnetic Resonance Imaging (MRI) offers unparalleled soft-tissue contrast but is fundamentally limited by long acquisition times. While deep learning-based accelerated MRI can dramatically shorten scan times, the reconstruction from…

图像与视频处理 · 电气工程与系统科学 2025-08-22 Paul Fischer , Jan Nikolas Morshuis , Thomas Küstner , Christian Baumgartner

In recent studies on MRI reconstruction, advances have shown significant promise for further accelerating the MRI acquisition. Most state-of-the-art methods require a large amount of fully-sampled data to optimise reconstruction models,…

图像与视频处理 · 电气工程与系统科学 2023-12-04 Junwei Yang , Pietro Liò

High frame rate 3-D ultrasound imaging technology combined with super-resolution processing method can visualize 3-D microvascular structures by overcoming the diffraction limited resolution in every spatial direction. However, 3-D…

This work proposes a self-navigated variable density spiral(VDS) based manifold regularization scheme to prospectively improve dynamic speech MRI at 3T. Short readout 1.3ms spirals were used to minimize off-resonance. A custom 16-channel…

图像与视频处理 · 电气工程与系统科学 2023-05-03 Rushdi Zahid Rusho , Abdul Haseeb Ahmed , Stanley Kruger , Wahidul Alam , David Meyer , David Howard , Brad Story , Mathews Jacob , Sajan Goud Lingala

Accurate prediction of major adverse cardiac events (MACE) remains a central challenge in cardiovascular prognosis. We present PRISM (Prompt-guided Representation Integration for Survival Modeling), a self-supervised framework that…

计算机视觉与模式识别 · 计算机科学 2026-01-30 Haoyang Su , Jin-Yi Xiang , Shaohao Rui , Yifan Gao , Xingyu Chen , Tingxuan Yin , Shaoting Zhang , Xiaosong Wang , Lian-Ming Wu
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