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High-Energy Physics experiments are rapidly escalating in generated data volume, a trend that will intensify with the upcoming High-Luminosity LHC upgrade. This surge in data necessitates critical revisions across the data processing…

Highly selective triggers are essential for the physics programme of the ATLAS experiment at HL-LHC where the instantaneous luminosity will be about an order of magnitude larger than the LHC instantaneous luminosity in Run 1. The first…

Instrumentation and Detectors · Physics 2016-10-04 H. Kroha , S. Nowak

Nowadays, infrared target tracking has been a critical technology in the field of computer vision and has many applications, such as motion analysis, pedestrian surveillance, intelligent detection, and so forth. Unfortunately, due to the…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Wei-Jie Yan , Yun-Kai Xu , Qian Chen , Xiao-Fang Kong , Guo-Hua Gu , A-Jun Shao , Min-Jie Wan

It is challenging to design a high speed tracking approach using l1-norm due to its non-differentiability. In this paper, a new kernelized correlation filter is introduced by leveraging the sparsity attribute of l1-norm based regularization…

Computer Vision and Pattern Recognition · Computer Science 2019-02-25 Mingyang Guan , Zhengguo Li , Renjie He , Changyun Wen

Building particle tracks is the most computationally intense step of event reconstruction at the LHC. With the increased instantaneous luminosity and associated increase in pileup expected from the High-Luminosity LHC, the computational…

The high instantaneous luminosities expected following the upgrade of the Large Hadron Collider (LHC) to the High Luminosity LHC (HL-LHC) pose major experimental challenges for the CMS experiment. A central component to allow efficient…

The CMS tracker consists of two tracking systems utilizing semiconductor technology: the inner pixel and the outer strip detectors. The tracker detectors occupy the volume around the beam interaction region between 3 cm and 110 cm in radius…

Instrumentation and Detectors · Physics 2018-01-10 Viktor Veszpremi

Fast, efficient and accurate triggers are a critical requirement for modern high-energy physics experiments given the increasingly large quantities of data that they produce. The CEBAF Large Acceptance Spectrometer (CLAS12) employs a highly…

Instrumentation and Detectors · Physics 2023-05-31 Richard Tyson , Gagik Gavalian , David Ireland , Bryan McKinnon

Discriminatively learned correlation filters (DCF) have been widely used in online visual tracking filed due to its simplicity and efficiency. These methods utilize a periodic assumption of the training samples to construct a circulant data…

Computer Vision and Pattern Recognition · Computer Science 2017-06-02 Xiaoxiang Hu , Yujiu Yang

Online selection is an essential step to collect the most relevant collisions from the very large number of collisions inside the ATLAS detector at the Large Hadron Collider (LHC). The Fast TracKer (FTK) is a hardware based track finder,…

Instrumentation and Detectors · Physics 2020-10-12 Khalil Bouaouda , Stefan Schmitt , Driss Benchekroun

In this work, we develop a new iterative turbo receiver for LDPC-coded multi-antenna systems based on semidefinite relaxation (SDR). For a classical turbo receiver, forward error correction (FEC) code is only used at decoder. Nonetheless,…

Information Theory · Computer Science 2018-08-21 Kun Wang , Zhi Ding

The core component of most modern trackers is a discriminative classifier, tasked with distinguishing between the target and the surrounding environment. To cope with natural image changes, this classifier is typically trained with…

Computer Vision and Pattern Recognition · Computer Science 2014-11-06 João F. Henriques , Rui Caseiro , Pedro Martins , Jorge Batista

Discrete correlation filter (DCF) based trackers have shown considerable success in visual object tracking. These trackers often make use of low to mid level features such as histogram of gradients (HoG) and mid-layer activations from…

Computer Vision and Pattern Recognition · Computer Science 2018-02-09 Caglar Aytekin , Francesco Cricri , Emre Aksu

Multi-object tracking is a critical component in autonomous navigation, as it provides valuable information for decision-making. Many researchers tackled the 3D multi-object tracking task by filtering out the frame-by-frame 3D detections;…

Computer Vision and Pattern Recognition · Computer Science 2021-07-12 Nuri Benbarka , Jona Schröder , Andreas Zell

Dual encoder models are ubiquitous in modern classification and retrieval. Crucial for training such dual encoders is an accurate estimation of gradients from the partition function of the softmax over the large output space; this requires…

Machine Learning · Computer Science 2023-03-28 Nicholas Monath , Manzil Zaheer , Kelsey Allen , Andrew McCallum

The CMS Level-1 trigger was used to select cosmic ray muons and LHC beam events during data-taking runs in 2008, and to estimate the level of detector noise. This paper describes the trigger components used, the algorithms that were…

Instrumentation and Detectors · Physics 2012-08-27 CMS Collaboration

In order to maintain efficient tracking in the forward region of H1 after the luminosity upgrade of the HERA machine, the H1 Forward Track Detector was also upgraded. While much of the original software and techniques used for the HERA I…

Instrumentation and Detectors · Physics 2017-08-23 P. J. Laycock , R. C. W. Henderson , S. J. Maxfield , J. V. Morris , G. D. Patel , D. P. C. Sankey

Several improvements to the ATLAS triggers used to identify jets containing $b$-hadrons ($b$-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the $b$-jet…

High Energy Physics - Experiment · Physics 2024-11-22 ATLAS Collaboration

In this paper we used a Replication Function (R. F.)for improvement tracking with dynamic programming. The R. F. transforms values of gray level [0 255] to [0 1]. The resulting images of R. F. are more striking and visible in skin regions.…

Computer Vision and Pattern Recognition · Computer Science 2014-06-05 S. Ildarabadi , M. Ebrahimi , H. R. Pourreza

This thesis presents the work carried out in the testing of the ATLAS Phase-II Upgrade electronic systems in the future strips tracker after 2023, to be installed for operations in the HL-LHC period. The high luminosity and number of…

Instrumentation and Detectors · Physics 2017-07-27 Carlos García-Argos