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Finite-difference time-domain (FDTD) simulations often involve physical quantities spanning multiple orders of magnitude, such as the speed of light or electromagnetic field amplitudes. The standard practice for maintaining numerical…

Computational Physics · Physics 2026-03-26 Yannik Mahlau , Lukas Berg , Bodo Rosenhahn

Convolutional Neural Networks (CNNs), one of the most representative algorithms of deep learning, are widely used in various artificial intelligence applications. Convolution operations often take most of the computational overhead of CNNs.…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-09-28 Xiandong Huang , Qinglin Wang , Shuyu Lu , Ruochen Hao , Songzhu Mei , Jie Liu

Amidst the swift advancements in photography and sensor technologies, high-definition cameras have become commonplace in the deployment of Unmanned Aerial Vehicles (UAVs) for diverse operational purposes. Within the domain of UAV imagery…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Qi Li , Jiaxin Cai , Yuanlong Yu , Jason Gu , Jia Pan , Wenxi Liu

The FFT of three-dimensional (3D) input data is an important computational kernel of numerical simulations and is widely used in High Performance Computing (HPC) codes running on a large number of processors. Performance of many scientific…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-08-28 Vivek Gavane , Supriya Prabhugawankar , Shivam Garg , Archana Achalere , Rajendra Joshi

Photoacoustic imaging (PAI) can image high-resolution structures of clinical interest such as vascularity in cancerous tumor monitoring. When imaging human subjects, geometric restrictions force limited-view data retrieval causing imaging…

Image and Video Processing · Electrical Eng. & Systems 2022-04-27 Rafael Orozco , Mathias Louboutin , Felix J. Herrmann

Nonnegative matrix factorization (NMF) has an established reputation as a useful data analysis technique in numerous applications. However, its usage in practical situations is undergoing challenges in recent years. The fundamental factor…

Machine Learning · Computer Science 2016-05-04 Mariano Tepper , Guillermo Sapiro

The performance of radiofrequency (RF) coils has a significant impact on the quality and speed of magnetic resonance imaging (MRI). Consequently, rigid coils with attached cables are commonly employed to achieve optimal SNR performance and…

Existing deep convolutional neural networks (CNNs) generate massive interlayer feature data during network inference. To maintain real-time processing in embedded systems, large on-chip memory is required to buffer the interlayer feature…

Hardware Architecture · Computer Science 2021-10-13 Zhuang Shao , Xiaoliang Chen , Li Du , Lei Chen , Yuan Du , Wei Zhuang , Huadong Wei , Chenjia Xie , Zhongfeng Wang

The Square Kilometre Array (SKA) will operate one of the world's largest continuous scientific data systems, sustaining petascale imaging under strict power envelopes. Current radio-interferometric pipelines typically achieve only 4-14% of…

The Number Theoretic Transform (NTT) is a critical computational bottleneck in many lattice-based postquantum cryptographic (PQC) algorithms. By leveraging the Fast Fourier Transform (FFT) algorithm, the NTT of a polynomial of degree N - 1…

Cryptography and Security · Computer Science 2026-01-27 Mohammed Nabeel , Mahmoud Hafez , Michail Maniatakos

Infrared and visible image fusion aims to utilize the complementary information from two modalities to generate fused images with prominent targets and rich texture details. Most existing algorithms only perform pixel-level or feature-level…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Kun Hu , Qingle Zhang , Maoxun Yuan , Yitian Zhang

Neural radiance field (NeRF) has shown remarkable performance in generating photo-realistic novel views. Among recent NeRF related research, the approaches that involve the utilization of explicit structures like grids to manage features…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Yongjae Lee , Li Yang , Deliang Fan

Large-scale deep convolutional neural networks (CNNs) are widely used in machine learning applications. While CNNs involve huge complexity, VLSI (ASIC and FPGA) chips that deliver high-density integration of computational resources are…

Machine Learning · Computer Science 2017-03-23 Xushen Han , Dajiang Zhou , Shihao Wang , Shinji Kimura

This paper details the purpose, difficulties, theory, implementation, and results of developing a Fast Fourier Transform (FFT) using the prime factor algorithm on an embedded system. Many applications analyze the frequency content of…

Hardware Architecture · Computer Science 2025-01-22 Josh Vernon , D. G. Perera

Astrophysical radio signals are excellent probes of extreme physical processes that emit them. However, to reach Earth, electromagnetic radiation passes through the ionised interstellar medium (ISM), introducing a frequency-dependent time…

Instrumentation and Methods for Astrophysics · Physics 2023-11-10 Jan Novotný , Karel Adámek , M. A. Clark , Mike Giles , Wesley Armour

Due to the emergence of embedded applications in image and video processing, communication and cryptography, improvement of pictorial information for better human perception like deblurring, denoising in several fields such as satellite…

Hardware Architecture · Computer Science 2014-04-16 Chandrajit Pal , Avik Kotal , Asit Samanta , Amlan Chakrabarti , Ranjan Ghosh

We present a new method for interferometric imaging that is ideal for the large fields of view and compact arrays common in 21 cm cosmology. We first demonstrate the method with simulations for two very different low frequency…

Memory management is necessary with the increasing number of multi-connected AI devices and data bandwidth issues. For this purpose, high-speed multi-port memory is used. The traditional multi-port memory solutions are hard-bounded to a…

Hardware Architecture · Computer Science 2024-11-08 Narendra Singh Dhakad , Santosh Kumar Vishvakarma

In micromagnetic simulations, the demagnetization field is by far the computationally most expensive field component and often a limiting factor in large multilayer systems. We present an exact method to calculate the demagnetization field…

Computational Physics · Physics 2020-03-18 Paul Heistracher , Florian Bruckner , Claas Abert , Christoph Vogler , Dieter Suess

We introduce the first end-to-end learning-based solution to near-field Photometric Stereo (PS), where the light sources are close to the object of interest. This setup is especially useful for reconstructing large immobile objects. Our…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Daniel Lichy , Soumyadip Sengupta , David W. Jacobs