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Measurements from particle timing detectors are often affected by the time walk effect caused by statistical fluctuations in the charge deposited by passing particles. The constant fraction discriminator (CFD) algorithm is frequently used…

仪器与探测器 · 物理学 2024-03-19 Mateusz Kocot , Krzysztof Misan , Valentina Avati , Edoardo Bossini , Leszek Grzanka , Nicola Minafra

In this paper, we propose a Dual Focal Loss (DFL) function, as a replacement for the standard cross entropy (CE) function to achieve a better treatment of the unbalanced classes in a dataset. Our DFL method is an improvement on the recently…

计算机视觉与模式识别 · 计算机科学 2020-11-30 Md Sazzad Hossain , Andrew P Paplinski , John M Betts

Deformable liver motion tracking using a single X-ray projection enables real-time motion monitoring and treatment intervention. We introduce a conditional point cloud diffusion model-based framework for accurate and robust liver motion…

医学物理 · 物理学 2025-06-26 Jiacheng Xie , Hua-Chieh Shao , Yunxiang Li , Shunyu Yan , Chenyang Shen , Jing Wang , You Zhang

Point cloud segmentation is the foundation of 3D environmental perception for modern intelligent systems. To solve this problem and image segmentation, conditional random fields (CRFs) are usually formulated as discrete models in label…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Fei Yang , Franck Davoine , Huan Wang , Zhong Jin

Controllable Depth-of-Field (DoF) imaging commonly produces amazing visual effects based on heavy and expensive high-end lenses. However, confronted with the increasing demand for mobile scenarios, it is desirable to achieve a lightweight…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Xiaolong Qian , Qi Jiang , Yao Gao , Shaohua Gao , Zhonghua Yi , Lei Sun , Kai Wei , Haifeng Li , Kailun Yang , Kaiwei Wang , Jian Bai

Hyperspectral change detection (HCD) is one of the core applications of remote sensing images, holding significant research value in fields like environmental monitoring and disaster assessment. However, existing methods often suffer from…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Mingshuai Sheng , Bhatti Uzair Aslam , Junfeng Zhang , Siling Feng , Yonis Gulzar

In recent years increasingly complex architectures for deep convolution networks (DCNs) have been proposed to boost the performance on image recognition tasks. However, the gains in performance have come at a cost of substantial increase in…

机器学习 · 计算机科学 2016-06-03 Darryl D. Lin , Sachin S. Talathi , V. Sreekanth Annapureddy

Change detection is the process of identifying pixelwise differences in bitemporal co-registered images. It is of great significance to Earth observations. Recently, with the emergence of deep learning (DL), the power and feasibility of…

计算机视觉与模式识别 · 计算机科学 2021-09-03 Pan Chen , Danfeng Hong , Zhengchao Chen , Xuan Yang , Baipeng Li , Bing Zhang

Compression-based similarity measures are effectively employed in applications on diverse data types with a basically parameter-free approach. Nevertheless, there are problems in applying these techniques to medium-to-large datasets which…

机器学习 · 统计学 2012-10-03 Daniele Cerra , Mihai Datcu

Point cloud completion aims to recover partial geometric and topological shapes caused by equipment defects or limited viewpoints. Current methods either solely rely on the 3D coordinates of the point cloud to complete it or incorporate…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Feng Zhou , Qi Zhang , Ju Dai , Lei Li , Qing Fan , Junliang Xing

Probabilistic point cloud registration methods are becoming more popular because of their robustness. However, unlike point-to-plane variants of iterative closest point (ICP) which incorporate local surface geometric information such as…

计算机视觉与模式识别 · 计算机科学 2021-08-16 Weixiao Liu , Hongtao Wu , Gregory Chirikjian

This study investigates quantum-enhanced parameter estimation through continuous monitoring in open quantum systems that exhibit a dissipative time crystal phase. We first analytically derive the global quantum Fisher information (QFI) rate…

Point cloud analytics has become a critical workload for embedded and mobile platforms across various applications. Farthest point sampling (FPS) is a fundamental and widely used kernel in point cloud processing. However, the heavy external…

硬件体系结构 · 计算机科学 2024-03-28 Meng Han , Liang Wang , Limin Xiao , Hao Zhang , Chenhao Zhang , Xilong Xie , Shuai Zheng , Jin Dong

The significance of multi-scale features has been gradually recognized by the edge detection community. However, the fusion of multi-scale features increases the complexity of the model, which is not friendly to practical application. In…

计算机视觉与模式识别 · 计算机科学 2025-01-10 Yachuan Li , Zongmin Li , Xavier Soria P. , Chaozhi Yang , Qian Xiao , Yun Bai , Hua Li , Xiangdong Wang

Due to the point cloud's irregular and unordered geometry structure, conventional knowledge distillation technology lost a lot of information when directly used on point cloud tasks. In this paper, we propose Feature Adversarial…

计算机视觉与模式识别 · 计算机科学 2023-06-28 YuXing Lee , Wei Wu

Cloud occlusion severely degrades the semantic integrity of optical remote sensing imagery. While incorporating Synthetic Aperture Radar (SAR) provides complementary observations, achieving efficient global modeling and reliable cross-modal…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Chenxing Meng , Wuzhou Quan , Yingjie Cai , Liqun Cao , Liyan Zhang , Mingqiang Wei

In autonomous vehicles or robots, point clouds from LiDAR can provide accurate depth information of objects compared with 2D images, but they also suffer a large volume of data, which is inconvenient for data storage or transmission. In…

机器人学 · 计算机科学 2021-09-17 Sukai Wang , Jianhao Jiao , Peide Cai , Ming Liu

We propose Concavity-induced Distance (CID) as a novel way to measure the dissimilarity between a pair of points in an unoriented point cloud. CID indicates the likelihood of two points or two sets of points belonging to different convex…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Ruoyu Wang , Yanfei Xue , Bharath Surianarayanan , Dong Tian , Chen Feng

Fuzzy C-Means (FCM) is a widely used clustering method. However, FCM and its many accelerated variants have low efficiency in the mid-to-late stage of the clustering process. In this stage, all samples are involved in the update of their…

机器学习 · 计算机科学 2023-02-15 Dong Li , Shuisheng Zhou , Witold Pedrycz

Cardiovascular diseases are among the most important causes of global mortality. Computational Fluid Dynamics (CFD) is a powerful research tool that analyzes the hemodynamics of artery and blood flow patterns. In this study, CFD simulations…

流体动力学 · 物理学 2023-09-12 Osman Aycan , Adnan Topuz , Lyes Kadem