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This work compares three locomotion techniques for an immersive VR environment: two different types of teleporting (with and without animation) and a manual (joystick-based) technique. We tested the effect of these techniques on visual…

人机交互 · 计算机科学 2023-12-18 Ariel Caputo , Massimo Zancanaro , Andrea Giachetti

The use of 3D cameras for gait analysis has been highly questioned due to the low accuracy they have demonstrated in the past. The objective of the study presented in this paper is to improve the accuracy of the estimations made by…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Diego Guffanti , Alberto Brunete , Miguel Hernando , David Álvarez , Javier Rueda , Enrique Navarro

To investigate non-linear dynamical systems, like for instance artificial satellites, Solar System, exoplanets or galactic models, it is necessary to have at hand several tools, such as a reliable dynamical indicator. The aim of the present…

混沌动力学 · 物理学 2015-05-30 Nicolas Maffione , Claudia Giordano , Pablo Cincotta

Musculoskeletal diseases and cognitive impairments in patients lead to difficulties in movement as well as negative effects on their psychological health. Clinical gait analysis, a vital tool for early diagnosis and treatment, traditionally…

计算机视觉与模式识别 · 计算机科学 2024-03-04 Quoc Hung T. Le , Hieu H. Pham

Adaptive stretching, where the post compression signal is iteratively stretched to maximize the correlation between the pre and post compression rf echo frames, has demonstrated superior performance compared to gradient based methods. At…

组织与器官 · 定量生物学 2022-10-25 Shaiban Ahmed , Rasheed Abid , S. Kaisar Alam

Patient motion is well-known for degrading image quality during medical imaging. Especially positron emission tomography (PET) is susceptible to motion due to its usually long scan times. In hybrid PET/MRI (magnetic resonance imaging),…

医学物理 · 物理学 2019-05-21 Lynn Johann Frohwein , Florian Büther , Klaus Peter Schäfers

Aging and chronic conditions affect older adults' daily lives, making the early detection of developing health issues crucial. Weakness, which is common across many conditions, can subtly alter physical movements and daily activities.…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Chen Long-fei , Muhammad Ahmed Raza , Craig Innes , Subramanian Ramamoorthy , Robert B. Fisher

The use of computer-aided diagnosis in the reliable and fast detection of coronavirus disease (COVID-19) has become a necessity to prevent the spread of the virus during the pandemic to ease the burden on the medical infrastructure. Chest…

Intravoxel incoherent motion (IVIM) is a diffusion-weighted magnetic resonance imaging (MRI) method that may be applied to the placenta to help diagnose abnormal pregnancies. IVIM requires prolonged scan times, followed by a model-based…

图像与视频处理 · 电气工程与系统科学 2025-11-04 Mbaimou Auxence Ngremmadji , Freddy Odille , Charline Bertholdt , Marine Beaumont , Olivier Morel , Bailiang Chen

In the development of space-based large telescope systems, having the capability to perform active optics correction allows correcting wavefront aberrations caused by thermal perturbations so as to achieve diffraction-limited performance…

天体物理仪器与方法 · 物理学 2024-09-10 Solvay Blomquist , Hubert Martin , Hyukmo Kang , Rebecca Whitsitt , Kevin Derby , Heejoo Choi , Ewan S. Douglas , Daewook Kim

Recently, diagnosis, therapy and monitoring of human diseases involve a variety of imaging modalities, such as magnetic resonance imaging(MRI), computed tomography(CT), Ultrasound(US) and Positron-emission tomography(PET) as well as a…

计算机视觉与模式识别 · 计算机科学 2018-09-25 Jing Yuan , Aaron Fenster

We propose a novel method for non-rigid 3-D motion correction of orthogonally raster-scanned optical coherence tomography angiography volumes. This is the first approach that aligns predominantly axial structural features like retinal…

This document introduces the PHYTMO database, which contains data from physical therapies recorded with inertial sensors, including information from an optical reference system. PHYTMO includes the recording of 30 volunteers, aged between…

信号处理 · 电气工程与系统科学 2024-01-24 Sara García-de-Villa , Ana Jiménez-Martín , Juan Jesús García-Domínguez

Fluorescent calcium imaging provides a potentially powerful tool for inferring connectivity in neural circuits with up to thousands of neurons. However, a key challenge in using calcium imaging for connectivity detection is that current…

信息论 · 计算机科学 2014-09-05 Alyson K. Fletcher , Sundeep Rangan

Accurate face recognition systems are increasingly important in sensitive applications like border control or migration management. Therefore, it becomes crucial to quantify the quality of facial images to ensure that low-quality images are…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Marcel Grimmer , Christian Rathgeb , Raymond Veldhuis , Christoph Busch

Objective: The mechanical properties of corneal tissues play a crucial role in determining corneal shape and have significant implications in vision care. This study aimed to address the challenge of obtaining accurate in vivo data for the…

医学物理 · 物理学 2023-07-11 Guo-Yang Li , Xu Feng , Seok-Hyun Yun

Contrast agents in dynamic contrast enhanced magnetic resonance imaging allow to localize tumors and observe their contrast kinetics, which is essential for cancer characterization and respective treatment decision-making. However, contrast…

Tracer kinetic modeling serves a vital role in diagnosis, treatment planning, tracer development and oncology, but burdens practitioners with complex and invasive arterial input function estimation (AIF). We adopt a physics-informed…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Christian Salomonsen , Samuel Kuttner , Michael Kampffmeyer , Robert Jenssen , Kristoffer Wickstrøm , Jong Chul Ye , Elisabeth Wetzer

Pain is a serious and costly issue globally, but to be treated, it must first be detected. Vision transformers are a top-performing architecture in computer vision, with little research on their use for pain detection. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Giacomo Fiorentini , Itir Onal Ertugrul , Albert Ali Salah

Motivated by the strong performance of CLIP-based models in natural image-text domains, recent efforts have adapted these architectures to medical tasks, particularly in radiology, where large paired datasets of images and reports, such as…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Théo Sourget , David Restrepo , Céline Hudelot , Enzo Ferrante , Stergios Christodoulidis , Maria Vakalopoulou