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3D multi-object tracking is an important component in robotic perception systems such as self-driving vehicles. Recent work follows a tracking-by-detection pipeline, which aims to match past tracklets with detections in the current frame.…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Xinshuo Weng , Kris Kitani

Run-2 of the Large Hadron Collider (LHC) will provide new challenges to track and vertex reconstruction with higher energies, denser jets and higher rates. Therefore the ATLAS experiment has constructed the first 4-layer Pixel Detector in…

Instrumentation and Detectors · Physics 2016-08-30 Karolos Potamianos

To extend the physics reach of the LHC, accelerator upgrades are planned which will increase the integrated luminosity to beyond 3000 fb^-1 and the pile-up per bunch-crossing by a factor 5 to 10. To cope with the increased occupancy and…

Instrumentation and Detectors · Physics 2015-06-17 G. Calderini

Foreground components in the Cosmic Microwave Background (CMB) are sparse in a needlet representation, due to their specific morphological features (anisotropy, non-Gaussianity). This leads to the possibility of applying needlet…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-01 F. Oppizzi , A. Renzi , M. Liguori , F. K. Hansen , D. Marinucci , C. Baccigalupi , D. Bertacca , D. Poletti

The pixel detectors for the High Luminosity upgrades of the ATLAS and CMS detectors will preserve digitized charge information in spite of extremely high hit rates. Both circuit physical size and output bandwidth will limit the number of…

Instrumentation and Detectors · Physics 2018-09-26 Yitian Chen , Evan Frangipane , Maurice Garcia-Sciveres , Laura Jeanty , Benjamin Nachman , Simone Pagan Griso , Fuyue Wang

There is growing interest in object detection in advanced driver assistance systems and autonomous robots and vehicles. To enable such innovative systems, we need faster object detection. In this work, we investigate the trade-off between…

Computer Vision and Pattern Recognition · Computer Science 2018-10-05 Ting-Wu Chin , Chia-Lin Yu , Matthew Halpern , Hasan Genc , Shiao-Li Tsao , Vijay Janapa Reddi

The performance of modern object detectors drops when the test distribution differs from the training one. Most of the methods that address this focus on object appearance changes caused by, e.g., different illumination conditions, or gaps…

Computer Vision and Pattern Recognition · Computer Science 2023-01-16 Vidit Vidit , Martin Engilberge , Mathieu Salzmann

Detectors based on pixels with timing capabilities are gaining increasing importance in the last years. Next-to-come high-energy physics experiments at colliders require the use of time information in tracking, due to the expected levels of…

Instrumentation and Detectors · Physics 2023-01-27 Gian Matteo Cossu , Adriano Lai

The conventional non-coherent differential detection of continuous phase modulation (CPM) is quite robust to channel impairments such as phase and Doppler shifts. Its implementation is on top of that simple. It consists in multiplying the…

Information Theory · Computer Science 2022-04-13 Anouar Jerbi , Karine Amis , Frédéric Guilloud , Tarik Benaddi

As data volumes continue to grow, searches in data are becoming increasingly time-consuming. Classical index structures for neighbor search are no longer sustainable due to the "curse of dimensionality". Instead, approximated index…

Machine Learning · Computer Science 2021-11-17 Li Wang , Lilon Wangner

The evolution of particle detectors has always pushed the technological limit in order to provide enabling technologies to researchers in all fields of science. One archetypal example is the evolution of silicon detectors, from a system…

Instrumentation and Detectors · Physics 2017-07-04 Hartmut F. -W. Sadrozinski , Abraham Seiden , Nicolò Cartiglia

Homodyne detection is considered as a way to improve the efficiency of communication near the single-photon level. The current lack of commercially available {\it infrared} photon-number detectors significantly reduces the mutual…

Quantum Physics · Physics 2009-11-07 K. Nemoto , S. L. Braunstein

Recent advancements in sensors have led to high resolution and high data throughput at the pixel level. Simultaneously, the adoption of increasingly large (deep) neural networks (NNs) has lead to significant progress in computer vision.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Saurabh Farkya , Zachary Alan Daniels , Aswin Raghavan , Gooitzen van der Wal , Michael Isnardi , Michael Piacentino , David Zhang

We present a novel method for local image feature matching. Instead of performing image feature detection, description, and matching sequentially, we propose to first establish pixel-wise dense matches at a coarse level and later refine the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Jiaming Sun , Zehong Shen , Yuang Wang , Hujun Bao , Xiaowei Zhou

The ATLAS collaboration will replace its tracking detector with new all silicon pixel and strip systems. This will allow to cope with the higher radiation and occupancy levels expected after the 5-fold increase in the luminosity of the LHC…

We present a novel means of describing local image appearances using binary strings. Binary descriptors have drawn increasing interest in recent years due to their speed and low memory footprint. A known shortcoming of these representations…

Computer Vision and Pattern Recognition · Computer Science 2015-01-16 Gil Levi , Tal Hassner

The detection and tracking of small targets in passive optical remote sensing (PORS) has broad applications. However, most of the previously proposed methods seldom utilize the abundant temporal features formed by target motion, resulting…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Weihua Gao , Wenlong Niu , Wenlong Lu , Pengcheng Wang , Zhaoyuan Qi , Xiaodong Peng , Zhen Yang

A novel algorithm is proposed for segmenting an image into multiple levels using its mean and variance. Starting from the extreme pixel values at both ends of the histogram plot, the algorithm is applied recursively on sub-ranges computed…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Siddharth Arora , Jayadev Acharya , Amit Verma , Prasanta K. Panigrahi

We propose a nonlocal strain measure for use with digital image correlation (DIC). Whereas the traditional notion of compatibility (strain as the derivative of the displacement field) is problematic when the displacement field varies…

Instrumentation and Detectors · Physics 2014-09-10 R. B. Lehoucq , P. L. Reu , D. Z. Turner

An efficient policy search algorithm should estimate the local gradient of the objective function, with respect to the policy parameters, from as few trials as possible. Whereas most policy search methods estimate this gradient by observing…

Artificial Intelligence · Computer Science 2012-06-18 Gregory Lawrence , Stuart Russell