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In the realm of time series analysis, accurately measuring similarity is crucial for applications such as forecasting, anomaly detection, and clustering. However, existing metrics often fail to capture the complex, multidimensional nature…

Machine Learning · Computer Science 2024-05-13 Yuhan Liu , Ke Tu

The point cloud based 3D single object tracking has drawn increasing attention. Although many breakthroughs have been achieved, we also reveal two severe issues. By extensive analysis, we find the prediction manner of current approaches is…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Pan Wang , Liangliang Ren , Shengkai Wu , Jinrong Yang , En Yu , Hangcheng Yu , Xiaoping Li

Seismic travel time tomography is a geophysical imaging method to infer the 3-D interior structure of the solid Earth. Most commonly formulated as a linear(ized) inverse problem, it maps differences between observed and expected wave travel…

Numerical Analysis · Mathematics 2024-10-15 Naomi Schneider , Volker Michel , Karin Sigloch , Eoghan J. Totten

We propose novel smooth approximations to the classical rounding function, suitable for differentiable optimization and machine learning applications. Our constructions are based on two approaches: (1) localized sigmoid window functions…

Machine Learning · Computer Science 2025-04-29 Stanislav Semenov

Correspondence-based statistical shape modeling (SSM) stands as a powerful technology for morphometric analysis in clinical research. SSM facilitates population-level characterization and quantification of anatomical shapes such as bones…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Jadie Adams , Shireen Elhabian

We consider the problem of localizing a manned, semi-autonomous, or autonomous vehicle in the environment using information coming from the vehicle's sensors, a problem known as navigation or simultaneous localization and mapping (SLAM)…

Systems and Control · Electrical Eng. & Systems 2020-09-24 Paul Chauchat , Axel Barrau , Silvère Bonnabel

Cortical surface registration is often driven by local geometric descriptors (e.g., sulcal depth and curvature). While this approach achieves geometric correspondence, it neglects the long-range wiring constraints imposed by white-matter…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Yang Xiang , Martin Cole , Zhengwu Zhang

Aligning data from different domains is a fundamental problem in machine learning with broad applications across very different areas, most notably aligning experimental readouts in single-cell multiomics. Mathematically, this problem can…

Machine Learning · Computer Science 2024-06-21 Sanketh Vedula , Valentino Maiorca , Lorenzo Basile , Francesco Locatello , Alex Bronstein

Mobile edge computing mitigates the shortcomings of cloud computing caused by unpredictable wide-area network latency and serves as a critical enabling technology for the Industrial Internet of Things (IIoT). Unlike cloud computing, mobile…

Performance · Computer Science 2025-05-06 Yang Li , Xing Zhang , Yukun Sun , Wenbo Wang , Bo Lei

The use of infrastructure sensor technology for traffic detection has already been proven several times. However, extrinsic sensor calibration is still a challenge for the operator. While previous approaches are unable to calibrate the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Laurent Kloeker , Christian Kotulla , Lutz Eckstein

Upsampling LiDAR point clouds in autonomous driving scenarios remains a significant challenge due to the inherent sparsity and complex 3D structures of the data. Recent studies have attempted to address this problem by converting the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Chuang Chen , Xiaolin Qin , Jing Hu , Wenyi Ge

Moving object segmentation is a crucial task for safe and reliable autonomous mobile systems like self-driving cars, improving the reliability and robustness of subsequent tasks like SLAM or path planning. While the segmentation of camera…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Leon Schwarzer , Matthias Zeller , Daniel Casado Herraez , Simon Dierl , Michael Heidingsfeld , Cyrill Stachniss

Transformers have shown superior performance on various computer vision tasks with their capabilities to capture long-range dependencies. Despite the success, it is challenging to directly apply Transformers on point clouds due to their…

Computer Vision and Pattern Recognition · Computer Science 2023-03-30 Jinyoung Park , Sanghyeok Lee , Sihyeon Kim , Yunyang Xiong , Hyunwoo J. Kim

Bridging 2D and 3D sensor modalities is critical for robust perception in autonomous systems. However, image-to-point cloud (I2P) registration remains challenging due to the semantic-geometric gap between texture-rich but depth-ambiguous…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Xingmei Wang , Xiaoyu Hu , Chengkai Huang , Ziyan Zeng , Guohao Nie , Quan Z. Sheng , Lina Yao

To handle the different types of surface reconstruction tasks, we have replicated as well as modified a few of reconstruction methods and have made comparisons between the traditional method and data-driven method for reconstruction the…

Multimedia · Computer Science 2021-12-28 Ziyu Li , Fangyang Ye , Xinran Guan

Classification in the sense of similarity is an important issue. In this paper, we study similarity classification in Topological Data Analysis. We define a pseudometric $d_{S}^{(p)}$ to measure the distance between barcodes generated by…

Algebraic Topology · Mathematics 2024-11-18 Jiaxing He , Bingzhe Hou , Tieru Wu , Yang Cao

In recent years, multiple Light Detection and Ranging (LiDAR) systems have grown in popularity due to their enhanced accuracy and stability from the increased field of view (FOV). However, integrating multiple LiDARs can be challenging,…

Robotics · Computer Science 2023-11-08 Minwoo Jung , Sangwoo Jung , Ayoung Kim

We consider a setting with an evolving set of requests for transportation from an origin to a destination before a deadline and a set of agents capable of servicing the requests. In this setting, an assignment authority is to assign agents…

Databases · Computer Science 2021-01-19 Bolong Zheng , Qi Hu , Lingfeng Ming , Jilin Hu , Lu Chen , Kai Zheng , Christian S. Jensen

We present new almost time-reversible integrators for solution of planetary systems consisting of "planets" and a dominant mass ("star"). The algorithms can be considered adaptive generalizations of the Wisdom--Holman method, in which all…

Earth and Planetary Astrophysics · Physics 2024-04-09 David M. Hernandez , Walter Dehnen

We derive computed tomography (CT) of a time-varying volumetric translucent object, using a small number of moving cameras. We particularly focus on passive scattering tomography, which is a non-linear problem. We demonstrate the approach…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Roi Ronen , Yoav Y. Schechner , Eshkol Eytan
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