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3D multi-object tracking (MOT) is vital for many applications including autonomous driving vehicles and service robots. With the commonly used tracking-by-detection paradigm, 3D MOT has made important progress in recent years. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Xuesong Chen , Shaoshuai Shi , Chao Zhang , Benjin Zhu , Qiang Wang , Ka Chun Cheung , Simon See , Hongsheng Li

We describe an inexpensive and accessible instructional setup that explores particle trapping with a planar linear ion trap. The planar trap is constructed using standard printed circuit board manufacturing and is designed to trap…

Cracks play a crucial role in assessing the safety and durability of manufactured buildings. However, the long and sharp topological features and complex background of cracks make the task of crack segmentation extremely challenging. In…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Huaqi Tao , Bingxi Liu , Jinqiang Cui , Hong Zhang

Obstacle detection and tracking represent a critical component in robot autonomous navigation. In this paper, we propose ODTFormer, a Transformer-based model to address both obstacle detection and tracking problems. For the detection task,…

Robotics · Computer Science 2024-10-28 Tianye Ding , Hongyu Li , Huaizu Jiang

A front end ASIC (BiCMOS-SiGe 0.35 \mum) has been developed within the framework of the MIMAC detector project, which aims at directional detection of non-baryonic Dark Matter. This search strategy requires 3D reconstruction of low energy…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 J. P. Richer , G. Bosson , O. Bourrion , C. Grignon , O. Guillaudin , F. Mayet , D. Santos

We describe a technique for reconstruction of the four-dimensional transverse phase space of a beam in an accelerator beamline, taking into account the presence of unknown errors on the strengths of magnets used in the data collection. Use…

Accelerator Physics · Physics 2024-05-17 Andrzej Wolski , Diego Botelho , David Dunning , Amelia E. Pollard

This paper presents the Forward Time Projection Chamber (FTPC) system of the NA61/SHINE experiment at the CERN SPS accelerator. This TPC system applies a novel tandem-TPC design to reduce the background originating from particle tracks not…

We present a method to reconstruct the 3D trajectory of an airborne robotic system only from videos recorded with cameras that are unsynchronized, may feature rolling shutter distortion, and whose viewpoints are unknown. Our approach…

Robotics · Computer Science 2020-07-30 Jingtong Li , Jesse Murray , Dorina Ismaili , Konrad Schindler , Cenek Albl

We have designed and experimentally studied a simple beam splitter for atoms guided on an Atom Chip, using a current carrying Y-shaped wire and a bias magnetic field. This beam splitter and other similar designs can be used to build atom…

Quantum Physics · Physics 2009-11-06 Donatella Cassettari , Björn Hessmo , Ron Folman , Thomas Maier , Jörg Schmiedmayer

The design of a conical phased array antenna for air traffic control (ATC) radar systems is addressed in this work. The array, characterized by a fully digital beam-forming (DBF) architecture, is composed of equal vertical modules…

Signal Processing · Electrical Eng. & Systems 2021-08-19 Paolo Rocca , Nicola Anselmi , Mohammad Abdul Hannan , Andrea Massa

The Cylindrical GEM-Inner Tracker (CGEM-IT) is the upgrade of the internal tracking system of the BESIII experiment. It consists of three layers of cylindrically-shaped triple GEMs, with important innovations with respect to the existing…

A bubble chamber has been developed to be used as an active target system for low energy nuclear astrophysics experiments. Adopting ideas from dark matter detection with superheated liquids, a detector system compatible with gamma-ray beams…

Directional detection can provide unambiguous observation of Dark Matter interactions even in presence of insidious backgrounds. The DM-TPC collaboration is developing a detector with the goal of measuring the direction and sense of nuclear…

We present a flyscan compatible acquisition scheme for three-modal X-Ray Computed Tomography (CT) with two-dimensional phase sensitivity. Our approach is demonstrated using a "beam tracking" setup, through which a sample's attenuation,…

Medical Physics · Physics 2022-08-26 G. Lioliou , O. Roche i Morgó , S. Marathe , K. Wanelik , S. Cipiccia , A. Olivo , C. K. Hagen

Continuous protocols for cardiac magnetic resonance imaging enable sampling of the cardiac anatomy simultaneously resolved into cardiac phases. To avoid respiration artifacts, associated motion during the scan has to be compensated for…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Elisabeth Hoppe , Jens Wetzl , Philipp Roser , Lina Felsner , Alexander Preuhs , Andreas Maier

We propose a theoretical scheme for atomic cooling, i.e. the compression of both velocity and position distribution of particles in motion. This is achieved by collisions of the particles with a combination of a moving atomic mirror and a…

Quantum Physics · Physics 2018-01-24 Tom Dowdall , Andreas Ruschhaupt

This work presents new methods and algorithms for tracking the shape and trajectory of moving reflecting obstacles with broken rays, or rays reflecting at an obstacle. While in tomography the focus of the reconstruction method is to recover…

Graphics · Computer Science 2011-11-29 Kamen Lozev

We present an apparatus optimized for tracking swimming microorganisms in the size range 10-1000 microns, in three dimensions (3D), far from surfaces, and with negligible background convective fluid motion. CCD cameras attached to two long…

Soft Condensed Matter · Physics 2009-01-13 Knut Drescher , Kyriacos C. Leptos , Raymond E. Goldstein

Aerial robotic arms aim to enable inspection and environment interaction in otherwise hard-to-reach areas from the air. However, many aerial manipulators feature bulky or heavy robot manipulators mounted to large, high-payload aerial…

With the increasing integration of robots into human life, their role in architectural spaces where people spend most of their time has become more prominent. While motion capabilities and accurate localization for automated robots have…

Robotics · Computer Science 2025-03-12 Mengke Zhang , Zhihao Tian , Yaoguang Xia , Chao Xu , Fei Gao , Yanjun Cao