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Video restoration (e.g., video super-resolution) aims to restore high-quality frames from low-quality frames. Different from single image restoration, video restoration generally requires to utilize temporal information from multiple…

计算机视觉与模式识别 · 计算机科学 2022-06-16 Jingyun Liang , Jiezhang Cao , Yuchen Fan , Kai Zhang , Rakesh Ranjan , Yawei Li , Radu Timofte , Luc Van Gool

The significance of the broken ray transform (BRT) is due to its occurrence in a number of modalities spanning optical, x-ray, and nuclear imaging. When data are indexed by the scatter location, the BRT is both linear and shift invariant.…

信号处理 · 电气工程与系统科学 2019-08-07 Michael R. Walker , Joseph A. O'Sullivan

Optical coherence tomography (OCT) is a volumetric imaging modality that empowers clinicians and scientists to noninvasively visualize the cross-sections of biological samples. As the latest generation of its kind, Fourier-domain OCT…

图像与视频处理 · 电气工程与系统科学 2020-05-20 Yuye Ling , Mengyuan Wang , Yu Gan , Xinwen Yao , Leopold Schmetterer , Chuanqing Zhou , Yikai Su

Wireless sensing literature has long aspired to achieve X-ray-like vision at radio frequencies. Yet, state-of-the-art wireless sensing literature has yet to generate the archetypal X-ray image: one of the bones beneath flesh. In this paper,…

图形学 · 计算机科学 2025-09-23 Yiwen Song , Hongyang Li , Kuang Yuan , Ran Bi , Swarun Kumar

Breast cancer is still the second top cause of cancer deaths worldwide and this emphasizes the importance of necessary steps for early detection. Traditional diagnostic methods, such as mammography, ultrasound, and thermography, which have…

Recently, experiments have been reported where researchers were able to perform high dynamic range (HDR) tomography in a heuristic fashion, by fusing multiple tomographic projections. This approach to HDR tomography has been inspired by HDR…

信息论 · 计算机科学 2021-05-11 Matthias Beckmann , Ayush Bhandari , Felix Krahmer

One of the main open challenges in visual odometry (VO) is the robustness to difficult illumination conditions or high dynamic range (HDR) environments. The main difficulties in these situations come from both the limitations of the sensors…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Ruben Gomez-Ojeda , Zichao Zhang , Javier Gonzalez-Jimenez , Davide Scaramuzza

The mathematical problem for Electrical Impedance Tomography (EIT) is a highly nonlinear ill-posed inverse problem requiring carefully designed reconstruction procedures to ensure reliable image generation. D-bar methods are based on a…

数值分析 · 数学 2018-05-09 Sarah Jane Hamilton , Andreas Hauptmann

This paper presents a new technique for the virtual reality (VR) visu-alization of complex volume images obtained from computer tomography (CT) and Magnetic Resonance Imaging (MRI) by combining three-dimensional (3D) mesh processing and…

多媒体 · 计算机科学 2023-05-02 Iva Vasic , Roberto Pierdicca , Emanuele Frontoni , Bata Vasic

In vector tomography (VT), the aim is to reconstruct an unknown multi-dimensional vector field using line integral data. In the case of a 2-dimensional VT, two types of line integral data are usually required. These data correspond to…

数学物理 · 物理学 2025-07-18 Alexandra Koulouri , Mike Brookes , Ville Rimpilainen

Purpose: In multi-spectral imaging (MSI), several fast spin echo volumes with discrete Larmor frequency offsets are acquired in an interleaved fashion with multiple concatenations. Here, a variable resolution (VR) method to nearly halve…

医学物理 · 物理学 2023-06-06 Nikolai J. Mickevicius , Azadeh Sharafi , Andrew S. Nencka , Kevin M. Koch

In the last decade, convolutional neural networks (ConvNets) have dominated and achieved state-of-the-art performances in a variety of medical imaging applications. However, the performances of ConvNets are still limited by lacking the…

图像与视频处理 · 电气工程与系统科学 2021-04-15 Junyu Chen , Yufan He , Eric C. Frey , Ye Li , Yong Du

Medical images come in high resolutions. A high resolution is vital for finding malignant tissues at an early stage. Yet, this resolution presents a challenge in terms of modeling long range dependencies. Shallow transformers eliminate this…

计算机视觉与模式识别 · 计算机科学 2022-08-15 Ahmed Taha , Yen Nhi Truong Vu , Brent Mombourquette , Thomas Paul Matthews , Jason Su , Sadanand Singh

Recent years have witnessed the great advance of bioradar system in smart sensing of vital signs (VS) for human healthcare monitoring. As an important part of VS sensing process, VS measurement aims to capture the chest wall micromotion…

信号处理 · 电气工程与系统科学 2024-04-23 Chengyao Tang , Yongpeng Dai , Zhi Li , Yongping Song , Fulai Liang , Tian Jin

The recent rise of generative artificial intelligence (AI), powered by Transformer networks, has achieved remarkable success in natural language processing, computer vision, and graphics. However, the application of Transformers in…

图形学 · 计算机科学 2025-09-01 Qiang Zou , Lizhen Zhu

Accurate MRI-to-CT translation promises the integration of complementary imaging information without the need for additional imaging sessions. Given the practical challenges associated with acquiring paired MRI and CT scans, the development…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Teng Zhou , Jax Luo , Yuping Sun , Yiheng Tan , Shun Yao , Nazim Haouchine , Scott Raymond

Visual odometry (VO) is a prevalent way to deal with the relative localization problem, which is becoming increasingly mature and accurate, but it tends to be fragile under challenging environments. Comparing with classical geometry-based…

计算机视觉与模式识别 · 计算机科学 2020-11-30 Ke Wang , Sai Ma , Junlan Chen , Fan Ren

Routine clinical imaging of the retina using optical coherence tomography (OCT) is performed with large slice spacing, resulting in highly anisotropic images and a sparsely scanned retina. Most learning-based methods circumvent the problems…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Bennet Kahrs , Julia Andresen , Fenja Falta , Monty Santarossa , Heinz Handels , Timo Kepp

X-ray diffraction tomography (XDT) resolves spatially-variant XRD profiles within macroscopic objects, and provides improved material contrast compared to the conventional transmission-based computed tomography (CT). However, due to the…

医学物理 · 物理学 2019-01-04 Zheyuan Zhu , Alexander Katsevich , Shuo Pang

Vision Transformers (ViTs) have gained rapid adoption in computational pathology for their ability to model long-range dependencies through self-attention, addressing the limitations of convolutional neural networks that excel at local…

图像与视频处理 · 电气工程与系统科学 2026-01-15 Fuyao Chen , Yuexi Du , Elèonore V. Lieffrig , Nicha C. Dvornek , John A. Onofrey