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Addition of random phase to the object light is required in computer-generated holograms (CGHs) to widely diffuse the object light and to avoid its concentration on the CGH; however, this addition causes considerable speckle noise in the…

光学 · 物理学 2015-06-24 Tomoyoshi Shimobaba , Tomoyoshi Ito

Experimental control and detection of atoms and molecules often rely on optical transitions between different electronic states. In many cases, substructure such as hyperfine or spin-rotation structure leads to the need for multiple optical…

原子物理 · 物理学 2021-05-26 Connor M. Holland , Yukai Lu , Lawrence W. Cheuk

In this work, we first characterize the hybrid execution patterns of GCNs on Intel Xeon CPU. Guided by the characterization, we design a GCN accelerator, HyGCN, using a hybrid architecture to efficiently perform GCNs. Specifically, first,…

分布式、并行与集群计算 · 计算机科学 2020-01-09 Mingyu Yan , Lei Deng , Xing Hu , Ling Liang , Yujing Feng , Xiaochun Ye , Zhimin Zhang , Dongrui Fan , Yuan Xie

Computer-generated holograms with their animated, three-dimensional appearance have long appealed to our imagination as the path towards truly immersive displays with bi-directional natural parallax. Impressive progress in updateable 3-D…

The discrete wavelet transform can be found at the heart of many image-processing algorithms. Until now, the transform on general-purpose processors (CPUs) was mostly computed using a separable lifting scheme. As the lifting scheme consists…

计算机视觉与模式识别 · 计算机科学 2017-09-27 David Barina , Pavel Najman , Petr Kleparnik , Michal Kula , Pavel Zemcik

As supercomputers' complexity has grown, the traditional boundaries between processor, memory, network, and accelerators have blurred, making a homogeneous computer model, in which the overall computer system is modeled as a continuous…

分布式、并行与集群计算 · 计算机科学 2024-05-10 Martin Karp , Niclas Jansson , Philipp Schlatter , Stefano Markidis

Computer-generated graphics (CGs) are images generated by computer software. The~rapid development of computer graphics technologies has made it easier to generate photorealistic computer graphics, and these graphics are quite difficult to…

多媒体 · 计算机科学 2018-04-26 Ye Yao , Weitong Hu , Wei Zhang , Ting Wu , Yun-Qing Shi

Modern imaging techniques at the molecular scale rely on utilizing novel coherent light sources like X-ray free electron lasers for the ultimate goal of visualizing such objects as individual biomolecules rather than crystals. Here, unlike…

Metasurface-generated holography has emerged as a promising route for fully reproducing vivid scenes by manipulating the optical properties of light using ultra-compact devices. However, achieving multiple holographic images using a single…

The success of the exascale supercomputer is largely debated to remain dependent on novel breakthroughs in technology that effectively reduce the power consumption and thermal dissipation requirements. In this work, we consider the…

分布式、并行与集群计算 · 计算机科学 2018-10-10 Sergio Rivas-Gomez , Antonio J. Peña , David Moloney , Erwin Laure , Stefano Markidis

The rapid evolution of artificial intelligence (AI) is leading to a new generation of hardware accelerators optimized for deep learning. Some of the designs of these accelerators are general enough to allow their use for other…

计算工程、金融与科学 · 计算机科学 2019-12-18 Fantine Huot , Yi-Fan Chen , Robert Clapp , Carlos Boneti , John Anderson

This paper introduces a new multiplane CGH computation method to reconstruct artefact-free high-quality holograms with natural-looking defocus blur. Our method introduces a new targeting scheme and a new loss function. While the targeting…

计算机视觉与模式识别 · 计算机科学 2023-02-08 Koray Kavaklı , Yuta Itoh , Hakan Urey , Kaan Akşit

In recent years graphical processing units (GPUs) have become a powerful tool in scientific computing. Their potential to speed up highly parallel applications brings the power of high performance computing to a wider range of users.…

分布式、并行与集群计算 · 计算机科学 2017-04-26 Uldis Locans , Andreas Adelmann , Andreas Suter , Jannis Fischer , Werner Lustermann , Gunther Dissertori , Qiulin Wang

We use a graphics processing unit (GPU) for fast calculations of helicity amplitudes of quark and gluon scattering processes in massless QCD. New HEGET ({\bf H}ELAS {\bf E}valuation with {\bf G}PU {\bf E}nhanced {\bf T}echnology) codes for…

高能物理 - 唯象学 · 物理学 2011-02-09 K. Hagiwara , J. Kanzaki , N. Okamura , D. Rainwater , T. Stelzer

An ever increasing number of computer vision and image/video processing challenges are being approached using deep convolutional neural networks, obtaining state-of-the-art results in object recognition and detection, semantic segmentation,…

计算机视觉与模式识别 · 计算机科学 2016-11-11 Lukas Cavigelli , Luca Benini

The graphics processing unit (GPU) has emerged as a powerful and cost effective processor for general performance computing. GPUs are capable of an order of magnitude more floating-point operations per second as compared to modern central…

统计计算 · 统计学 2012-07-24 Mark Franey , Pritam Ranjan , Hugh Chipman

With the ease-of-programming, flexibility and yet efficiency, MapReduce has become one of the most popular frameworks for building big-data applications. MapReduce was originally designed for distributed-computing, and has been extended to…

分布式、并行与集群计算 · 计算机科学 2013-09-03 Mian Lu , Lei Zhang , Huynh Phung Huynh , Zhongliang Ong , Yun Liang , Bingsheng He , Rick Siow Mong Goh , Richard Huynh

In this work, we have explored the advantages and drawbacks of using GPUs instead of CPUs in the calculation of a standard 2-point correlation function algorithm, which is useful for the analysis of Large Scale Structure of galaxies. Taking…

天体物理仪器与方法 · 物理学 2012-05-01 Rafael Ponce , Miguel Cardenas-Montes , Juan Jose Rodriguez-Vazquez , Eusebio Sanchez , Ignacio Sevilla

Emerging AI applications such as ChatGPT, graph convolutional networks, and other deep neural networks require massive computational resources for training and inference. Contemporary computing platforms such as CPUs, GPUs, and TPUs are…

机器学习 · 计算机科学 2023-03-24 Febin Sunny , Mahdi Nikdast , Sudeep Pasricha

This study presents a novel approach for generating holograms based on the neural radiance fields (NeRF) technique. Generating three-dimensional (3D) data is difficult in hologram computation. NeRF is a state-of-the-art technique for 3D…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Minsung Kang , Fan Wang , Kai Kumano , Tomoyoshi Ito , Tomoyoshi Shimobaba