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Image retrieval systems help users to browse and search among extensive images in real-time. With the rise of cloud computing, retrieval tasks are usually outsourced to cloud servers. However, the cloud scenario brings a daunting challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Qihua Feng , Peiya Li , Zhixun Lu , Chaozhuo Li , Zefang Wang , Zhiquan Liu , Chunhui Duan , Feiran Huang

The photon detection system for the LHCb RICH Upgrade consists of an array of multianode photomultiplier tubes (MaPMTs) read out by custom-built modular electronics. The behaviour of the whole chain was studied at CERN using a pulsed laser.…

Instrumentation and Detectors · Physics 2018-01-10 Michele Piero Blago , Floris Keizer

This technical report presents LongViT, a vision Transformer that can process gigapixel images in an end-to-end manner. Specifically, we split the gigapixel image into a sequence of millions of patches and project them linearly into…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Wenhui Wang , Shuming Ma , Hanwen Xu , Naoto Usuyama , Jiayu Ding , Hoifung Poon , Furu Wei

Transformers are central in modern natural language processing and computer vision applications. Despite recent works devoted to reducing the quadratic cost of such models (as a function of the sequence length), dealing with ultra long…

Computation and Language · Computer Science 2023-05-30 Zhanpeng Zeng , Cole Hawkins , Mingyi Hong , Aston Zhang , Nikolaos Pappas , Vikas Singh , Shuai Zheng

High quantum efficiency over a broad spectral range is one of the main properties of the EPIC pn camera on-board XMM-Newton. The quantum efficiency rises from ~75% at 0.2 keV to ~100% at 1 keV, stays close to 100% until 8 keV, and is still…

Swift, high resolution CMOS pixel sensors are being developed for the ILC vertex detector, aiming to allow approaching the interaction point very closely. A major issue is the time resolution of the sensors needed to deal with the high…

Quantization for CNN has shown significant progress with the intention of reducing the cost of computation and storage with low-bitwidth data representations. There are, however, no systematic studies on how an existing full-bitwidth…

Hardware Architecture · Computer Science 2024-05-14 Yao Chen , Junhao Pan , Xinheng Liu , Jinjun Xiong , Deming Chen

Hyperspectral imaging is a powerful tool for Earth exploration, allowing for detailed analysis of spectral features. India has launched a dedicated hyperspectral Earth observation satellite capable of capturing data across a wide…

Image and Video Processing · Electrical Eng. & Systems 2024-11-15 Ankur Garg , Abhishek Patil , Meenakshi Sarkar , S. Manthira Moorthi , Debajyoti Dhar

Reconfigurable linear optical networks are a key component for the development of optical quantum information processing platforms in the NISQ era and beyond. We report the implementation of such a device based on an innovative design that…

Quantum Physics · Physics 2022-10-21 A. Cavaillès , P. Boucher , L. Daudet , I. Carron , S. Gigan , K. Müller

Comparison of six high-redshift quasar spectra obtained with the Large Binocular Telescope with previous observations from the Sloan Digital Sky Survey shows that failure to correctly identify absorption and other problems with accurate…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Kelly D. Denney , Richard W. Pogge , Roberto J. Assef , Christopher S. Kochanek , Bradley M. Peterson , Marianne Vestergaard

The photoluminescence spectrum of a single quantum dot was recorded as a secondary resonant laser optically dressed either the vacuum-to-exciton or the exciton-to-biexciton transitions. High-resolution polarization-resolved measurements…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Andreas Muller , Wei Fang , John Lawall , Glenn S. Solomon

In recent years, the proliferation of multimedia applications and formats, such as IPTV, Virtual Reality (VR, 360-degree), and point cloud videos, has presented new challenges to the video compression research community. Simultaneously,…

Image and Video Processing · Electrical Eng. & Systems 2023-10-23 Thomas Amestoy , Naty Sidaty , Wassim Hamidouche , Pierrick Philippe , Daniel Menard

Object recognition systems are usually trained and evaluated on high resolution images. However, in real world applications, it is common that the images have low resolutions or have small sizes. In this study, we first track the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Amir Ghasemi , Nasrin Bayat , Fatemeh Mottaghian , Akram Bayat

Machine learning applications are computationally demanding and power intensive. Hardware acceleration of these software tools is a natural step being explored using various technologies. A recurrent processing unit (RPU) is fast and…

Emerging Technologies · Computer Science 2019-12-17 Heidi Komkov , Alessandro Restelli , Brian Hunt , Liam Shaughnessy , Itamar Shani , Daniel P. Lathrop

With present-day detectors in high energy physics one often faces fast analog pulses of a few nanoseconds length which cover large dynamic ranges. In many experiments both amplitude and timing information have to be measured with high…

Particle Image Velocimetry (PIV) is a method of im-aging and analysing fields of flows. The PIV tech-niques compute and display all the motion vectors of the field in a resulting image. Speeds more than thou-sand vectors per second can be…

Hardware Architecture · Computer Science 2008-07-24 Alain Aubert , Nathalie Bochard , Virginie Fresse

The Evryscope is a telescope array designed to open a new parameter space in optical astronomy, detecting short timescale events across extremely large sky areas simultaneously. The system consists of a 780 MPix 22-camera array with an 8150…

Instrumentation and Methods for Astrophysics · Physics 2019-05-29 Jeffrey K. Ratzloff , Nicholas M. Law , Octavi Fors , Henry T. Corbett , Ward S. Howard , Daniel del Ser , Joshua Haislip

The generation of optical pulses at ultra low bias level, thus low energy cost, is explored in a commercial microcavity semiconductor laser in view of testing the principle of energy efficient information encoding in potential integrated…

Optics · Physics 2019-03-27 Tao Wang , Gaofeng Wang , Gian Piero Puccioni , Gian Luca Lippi

Existing computer vision processing pipeline acquires visual information using an image sensor that captures pixel information in the Bayer pattern. The raw sensor data are then processed using an image signal processor (ISP) that first…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Haichao Wang , Xinyue Xi , Jiangtao Wen , Yuxing Han

The paper describes a time- and angle-resolved photoemission apparatus consisting of a hemispherical analyzer and a pulsed laser source. We demonstrate 1.48-eV pump and 5.90-eV probe measurements at the >10.5-meV and >240-fs resolutions by…

Materials Science · Physics 2016-12-16 Y. Ishida , T. Togashi , K. Yamamoto , M. Tanaka , T. Kiss , T. Otsu , Y. Kobayashi , S. Shin
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