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We propose a learning-based trajectory tracking controller for autonomous robotic platforms whose motion can be described kinematically on $\mathrm{SE}(3)$. The controller is formulated in the dual quaternion framework and operates at the…

机器人学 · 计算机科学 2026-01-07 Omayra Yago Nieto , Alexandre Anahory Simoes , Juan I. Giribet , Leonardo Colombo

Tracking organ motion is important in image-guided interventions, but motion annotations are not always easily available. Thus, we propose Repetitive Motion Estimation Network (RMEN) to recover cardiac and respiratory signals. It learns the…

计算机视觉与模式识别 · 计算机科学 2018-11-09 Xiaoxiao Li , Vivek Singh , Yifan Wu , Klaus Kirchberg , James Duncan , Ankur Kapoor

Gait recognition is a promising video-based biometric for identifying individual walking patterns from a long distance. At present, most gait recognition methods use silhouette images to represent a person in each frame. However, silhouette…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Torben Teepe , Ali Khan , Johannes Gilg , Fabian Herzog , Stefan Hörmann , Gerhard Rigoll

Accelerated cardiac cine MRI requires reconstructing spatiotemporal images from highly undersampled k-space data. Implicit neural representations (INRs) enable scan-specific reconstruction without large training datasets, but encode content…

图像与视频处理 · 电气工程与系统科学 2026-03-09 Wenqi Huang , Veronika Spieker , Nil Stolt-Ansó , Natascha Niessen , Maik Dannecker , Sevgi Gokce Kafali , Sila Kurugol , Julia A. Schnabel , Daniel Rueckert

Decoding gait dynamics from EEG signals presents significant challenges due to the complex spatial dependencies of motor processes, the need for accurate temporal and spectral feature extraction, and the scarcity of high-quality gait EEG…

信号处理 · 电气工程与系统科学 2026-02-13 Xi Fu , Rui Liu , Aung Aung Phyo Wai , Hannah Pulferer , Neethu Robinson , Gernot R Müller-Putz , Cuntai Guan

The analysis of electrical impulse phenomena in cardiac muscle tissue is important for the diagnosis of heart rhythm disorders and other cardiac pathophysiology. Cardiac mapping techniques acquire local temporal measurements and combine…

医学物理 · 物理学 2022-03-21 Jan Lebert , Namita Ravi , Flavio Fenton , Jan Christoph

We propose the multistep port-Hamiltonian Gaussian process (MS-PHS GP) to learn physically consistent continuous-time dynamics and a posterior over the Hamiltonian from noisy, irregularly-sampled trajectories. By placing a GP prior on the…

机器学习 · 计算机科学 2025-10-07 Chi Ho Leung , Philip E. Paré

Dynamics of human body skeletons convey significant information for human action recognition. Conventional approaches for modeling skeletons usually rely on hand-crafted parts or traversal rules, thus resulting in limited expressive power…

计算机视觉与模式识别 · 计算机科学 2018-01-26 Sijie Yan , Yuanjun Xiong , Dahua Lin

Constantly locating moving objects, i.e., geospatial tracking, is essential for autonomous building infrastructure. Accurate and robust geospatial tracking often leverages multimodal sensor fusion algorithms, which require large datasets…

Vascular tracking of angiographic image sequences is one of the most clinically important tasks in the diagnostic assessment and interventional guidance of cardiac disease. However, this task can be challenging to accomplish because of…

计算机视觉与模式识别 · 计算机科学 2018-05-28 Huihui Fang , Jian Yang , Jianjun Zhu , Danni Ai , Yong Huang , Yurong Jiang , Hong Song , Yongtian Wang

Gaussian splatting has emerged as a powerful tool for high-fidelity reconstruction of dynamic scenes. However, existing methods primarily rely on implicit motion representations, such as encoding motions into neural networks or per-Gaussian…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Xinyu Zhang , Haonan Chang , Yuhan Liu , Abdeslam Boularias

Atrial fibrillation is a clinical arrhythmia with multifactorial mechanisms still unresolved. Time-frequency analysis of epicardial electrograms has been investigated to study atrial fibrillation. However, deeper understanding of atrial…

信号处理 · 电气工程与系统科学 2019-10-15 Miao Sun , Elvin Isufi , Natasja M. S. de Groot , Richard C. Hendriks

Physical systems can often be described via a continuous-time dynamical system. In practice, the true system is often unknown and has to be learned from measurement data. Since data is typically collected in discrete time, e.g. by sensors,…

机器学习 · 计算机科学 2024-01-31 Katharina Ensinger , Nicholas Tagliapietra , Sebastian Ziesche , Sebastian Trimpe

Terrain analysis is critical for the practical ap- plication of ground mobile robots in real-world tasks, espe- cially in outdoor unstructured environments. In this paper, we propose a novel spatial-temporal traversability assessment…

机器人学 · 计算机科学 2025-10-21 Zhenyu Hou , Senming Tan , Zhihao Zhang , Long Xu , Mengke Zhang , Zhaoqi He , Chao Xu , Fei Gao , Yanjun Cao

Gaussian process (GP) regression is a powerful probabilistic modeling technique with built-in uncertainty quantification. When one has access to multiple correlated simulations (tasks), it is common to fit a multitask GP (MTGP) surrogate…

统计计算 · 统计学 2026-03-18 Aleksei G. Sorokin , Pieterjan Robbe , Fred J. Hickernell

Motion free reconstruction of compressively sampled cardiac perfusion MR images is a challenging problem. It is due to the aliasing artifacts and the rapid contrast changes in the reconstructed perfusion images. In addition to the…

图像与视频处理 · 电气工程与系统科学 2019-04-11 Abdul Haseeb Ahmed , Ijaz M. Qureshi

Temporal contexts among consecutive frames are far from being fully utilized in existing visual trackers. In this work, we present TCTrack, a comprehensive framework to fully exploit temporal contexts for aerial tracking. The temporal…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Ziang Cao , Ziyuan Huang , Liang Pan , Shiwei Zhang , Ziwei Liu , Changhong Fu

Accurate motion estimation at high acceleration factors enables rapid motion-compensated reconstruction in Magnetic Resonance Imaging (MRI) without compromising the diagnostic image quality. In this work, we introduce an attention-aware…

图像与视频处理 · 电气工程与系统科学 2024-04-30 Aya Ghoul , Jiazhen Pan , Andreas Lingg , Jens Kübler , Patrick Krumm , Kerstin Hammernik , Daniel Rueckert , Sergios Gatidis , Thomas Küstner

Analyzing the geographic movement of humans, animals, and other phenomena is a growing field of research. This research has benefited urban planning, logistics, animal migration understanding, and much more. Typically, the movement is…

计算与语言 · 计算机科学 2022-02-01 Scott Pezanowski , Prasenjit Mitra

Trajectory optimization methods for motion planning attempt to generate trajectories that minimize a suitable objective function. Such methods efficiently find solutions even for high degree-of-freedom robots. However, a globally optimal…

机器人学 · 计算机科学 2019-07-18 Luka Petrović , Juraj Peršić , Marija Seder , Ivan Marković