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Large-volume liquid scintillator detectors with ultra-low background levels have been widely used to study neutrino physics and search for dark matter. Event vertex and event time are not only useful for event selection but also essential…

LHCb will commence data taking as the first dedicated heavy flavour experiment at a hadron collider in 2008. A very high hit precision from its vertex detector (VELO) is essential to meet the tight requirements of vertex reconstruction in…

仪器与探测器 · 物理学 2019-08-14 Marco Gersabeck

Single-stage detectors suffer from extreme foreground-background class imbalance, while two-stage detectors do not. Therefore, in semi-supervised object detection, two-stage detectors can deliver remarkable performance by only selecting…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Yueming Zhang , Xingxu Yao , Chao Liu , Feng Chen , Xiaolin Song , Tengfei Xing , Runbo Hu , Hua Chai , Pengfei Xu , Guoshan Zhang

One-stage object detectors such as SSD or YOLO already have shown promising accuracy with small memory footprint and fast speed. However, it is widely recognized that one-stage detectors have difficulty in detecting small objects while they…

计算机视觉与模式识别 · 计算机科学 2017-09-19 Sanghyun Woo , Soonmin Hwang , In So Kweon

Significant progress has been made to develop silicon pixel technologies for use in the vertex and tracker regions of the proposed Compact Linear Collider (CLIC) detector design. The electron-positron collisions generated by this linear…

仪器与探测器 · 物理学 2020-04-22 Morag Williams

The vectorial structure of light, amplitude, phase, and polarization, encodes essential information for applications ranging from super-resolution microscopy to high-capacity communications and quantum information processing. However,…

Recovery of support of a sparse vector from simple measurements is a widely-studied problem, considered under the frameworks of compressed sensing, 1-bit compressed sensing, and more general single index models. We consider generalizations…

机器学习 · 统计学 2021-11-05 Venkata Gandikota , Arya Mazumdar , Soumyabrata Pal

The Robust Alignment algorithm for the ATLAS silicon detectors is presented. It is an iterative method based on centering residual and overlap residual distributions. Tests on simulated and real data are discussed.

仪器与探测器 · 物理学 2007-10-08 Florian Heinemann

The topic of the paper is the position reconstruction from signals of segmented detectors. With the help of a simple simulation, it is shown that the position reconstruction using the centre-of-gravity method is strongly biased, if the…

仪器与探测器 · 物理学 2021-09-15 A. Ebrahimi , F. Feind , E. Fretwurst , E. Garutti , M. Hajheidari , R. Klanner , D. Pitzl , J. Schwandt , G. Steinbrueck , I. Zoi

Many modern object detectors demonstrate outstanding performances by using the mechanism of looking and thinking twice. In this paper, we explore this mechanism in the backbone design for object detection. At the macro level, we propose…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Siyuan Qiao , Liang-Chieh Chen , Alan Yuille

The STAR Silicon Strip Detector (SSD) completes the three layers of the Silicon Vertex Tracker (SVT) to make an inner tracking system located inside the Time Projection Chamber (TPC). This additional fourth layer provides two dimensional…

Accurate visual re-localization is very critical to many artificial intelligence applications, such as augmented reality, virtual reality, robotics and autonomous driving. To accomplish this task, we propose an integrated visual…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Yuhao Zhou , Huanhuan Fan , Shuang Gao , Yuchen Yang , Xudong Zhang , Jijunnan Li , Yandong Guo

This work is for designing one-stage lightweight detectors which perform well in terms of mAP and latency. With baseline models each of which targets on GPU and CPU respectively, various operations are applied instead of the main operations…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Deokki Hong

An unconventional solution for finding the location of event creation is presented. It is based on two feed-forward neural networks with fixed architecture, whose parameters are chosen so as to reach a high accuracy. The interaction point…

高能物理 - 实验 · 物理学 2009-10-31 Gideon Dror , Erez Etzion

Inspired by humans' ability to perceive the surface texture of unfamiliar objects without relying on vision, the sense of touch can play a crucial role in robots exploring the environment, particularly in scenes where vision is difficult to…

机器人学 · 计算机科学 2023-01-23 Junyuan Lu , Zeyu Wan , Yu Zhang

Patch-level image representation is very important for object classification and detection, since it is robust to spatial transformation, scale variation, and cluttered background. Many existing methods usually require fine-grained…

计算机视觉与模式识别 · 计算机科学 2017-05-09 Peng Tang , Xinggang Wang , Zilong Huang , Xiang Bai , Wenyu Liu

We study the 3D object understanding task for manipulating everyday objects with different material properties (diffuse, specular, transparent and mixed). Existing monocular and RGB-D methods suffer from scale ambiguity due to missing or…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Chuanrui Zhang , Yonggen Ling , Minglei Lu , Minghan Qin , Haoqian Wang

The visibility graph of a simple polygon represents visibility relations between its vertices. Knowing the correct order of the vertices around the boundary of a polygon and its visibility graph, it is an open problem to locate the vertices…

计算几何 · 计算机科学 2019-05-03 Sahar Mehrpour , Alireza Zarei

In the reconstruction process of unknown multiple scattering objects in inverse medium scattering problems, the first important step is to effectively locate some approximate domains that contain all inhomogeneous media. Without such an…

数值分析 · 数学 2015-06-12 Keji Liu , Jun Zou

Reconstructing 3D object models is playing an important role in many applications in the field of computer vision. Instead of employing a collection of cameras and/or sensors as in many studies, this paper proposes a simple way to build a…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Trong Nguyen Nguyen , Huu Hung Huynh , Jean Meunier