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As a multi-contrast X-ray computed tomography (CT) imaging system, the grating-based Talbot-Lau interferometer is able to generate the absorption contrast and differential phase contrast (DPC) images concurrently. However, experiments found…

医学物理 · 物理学 2024-04-16 Yuhang Tan , Jiecheng Yang , Hairong Zheng , Dong Liang , Peiping Zhu , Yongshuai Ge

Besides suppressing all undesired sound sources, an important objective of a binaural noise reduction algorithm for hearing devices is the preservation of the binaural cues, aiming at preserving the spatial perception of the acoustic scene.…

音频与语音处理 · 电气工程与系统科学 2022-11-22 N. Gößling , S. Doclo

Fourier transform (FT) plays a crucial role in a broad range of applications, from enhancement, restoration and analysis through to security, compression and manipulation. The Fourier transform (FT) is a process that converts a function…

数值分析 · 数学 2023-05-05 Benjamin Kenwright

RGB-D saliency detection integrates information from both RGB images and depth maps to improve prediction of salient regions under challenging conditions. The key to RGB-D saliency detection is to fully mine and fuse information at multiple…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Yue Wang , Xu Jia , Lu Zhang , Yuke Li , James Elder , Huchuan Lu

The Hausdorff fractal dimension has been a fast-to-calculate method to estimate complexity of fractal shapes. In this work, a modified version of this fractal dimension is presented in order to make it more robust when applied in estimating…

计算机视觉与模式识别 · 计算机科学 2015-05-15 Reza Farrahi Moghaddam , Mohamed Cheriet

This paper presents a linear complexity iterative rake detector for the recently proposed orthogonal time frequency space (OTFS) modulation scheme. The basic idea is to extract and combine the received multipath components of the…

信号处理 · 电气工程与系统科学 2020-01-30 Tharaj Thaj , Emanuele Viterbo

Differential Optical Transfer Function (dOTF) is an image-based, non-iterative wavefront sensing method that uses two star images with a single small change in the pupil. We describe two possible methods for introducing the required pupil…

天体物理仪器与方法 · 物理学 2015-03-02 Johanan L. Codona , Nathan Doble

The 3D Discrete Fourier Transform (DFT) is a technique used to solve problems in disparate fields. Nowadays, the commonly adopted implementation of the 3D-DFT is derived from the Fast Fourier Transform (FFT) algorithm. However, evidence…

Background: Windowed Fourier decompositions (WFD) are widely used in measuring stationary and non-stationary spectral phenomena and in describing pairwise relationships among multiple signals. Although a variety of WFDs see frequent…

定量方法 · 定量生物学 2019-01-30 Christopher K. Kovach , Phillip E. Gander

A mathematical relation between elements of one- and multi-dimensional discrete Fourier transforms (DFT) is found. A method of analysing the multi-dimensional data by their single one-dimensional (1-D) DFT is offered. An experiment of…

数值分析 · 数学 2025-10-20 Andrew V. Batrac

Accelerated discovery with machine learning (ML) has begun to provide the advances in efficiency needed to overcome the combinatorial challenge of computational materials design. Nevertheless, ML-accelerated discovery both inherits the…

材料科学 · 物理学 2022-05-09 Chenru Duan , Fang Liu , Aditya Nandy , Heather J. Kulik

Diffusion-based molecular communication (MC) systems experience significant reliability losses. To boost the reliability, an MC scheme where multiple receivers (RXs) work cooperatively to decide the signal of a transmitter (TX) by sending…

信息论 · 计算机科学 2018-02-14 Yuting Fang , Adam Noel , Yiran Wang , Nan Yang

Image style transfer is an underdetermined problem, where a large number of solutions can satisfy the same constraint (the content and style). Although there have been some efforts to improve the diversity of style transfer by introducing…

计算机视觉与模式识别 · 计算机科学 2020-03-23 Zhizhong Wang , Lei Zhao , Haibo Chen , Lihong Qiu , Qihang Mo , Sihuan Lin , Wei Xing , Dongming Lu

Fluorescence molecular tomography (FMT) is a sensitive optical imaging technology widely used in biomedical research. However, the ill-posedness of the inverse problem poses a huge challenge to FMT reconstruction. Although end-to-end deep…

图像与视频处理 · 电气工程与系统科学 2025-03-18 Peng Zhang , Qianqian Xue , Xingyu Liu , Guanglei Zhang , Wenjian Wang , Jiye Liang

We propose a modulus based zero-forcing (MZF) detection for multi-input multi-output (MIMO) channels. Traditionally, a ZF detector nulls out all interferences from other layers when detecting a current layer, which can yield suboptimal…

信息论 · 计算机科学 2018-01-11 Sha Hu , Fredrik Rusek

The range resolution in conventional continuous time frequency modulation (CTFM) is inversely proportional to the signal bandwidth. The dual-demodulator continuous time frequency modulation (DD-CTFM) processing technique was proposed by…

信息论 · 计算机科学 2017-01-12 Kapil Dev Tyagi , Arun Kumar , R. Bahl

Photonic computing has emerged as a promising platform for accelerating computational tasks with high degrees of parallelism, such as image processing and neural network. We present meta-DFT (discrete Fourier transform), a single layer…

光学 · 物理学 2026-01-07 Randy Stefan Tanuwijaya , So Lap , Wai Chun Wong , Tailin An , Wing Yim Tam , Jensen Li

With increasing interest in high-speed imaging should come an increased interest in the response times of our scanning transmission electron microscope (STEM) detectors. Previous works have previously highlighted and contrasted performance…

A new method is developed for three-dimensional (3D) reconstruction of multi-material objects using propagation-based X-ray phase-contrast tomography (PB-CT) with phase retrieval via the contrast transfer function (CTF) formalism. The…

医学物理 · 物理学 2023-05-15 Darren A. Thompson , Yakov I. Nesterets , Konstantin M. Pavlov , Timur E. Gureyev

The use of precise time-of-flight (ToF) detectors for measurements of diffractive and electromagnetic processes in proton-proton collisions is discussed. The performance of background rejection exploiting the ToF measurements of the forward…

高能物理 - 实验 · 物理学 2019-06-26 Rafał Staszewski , Janusz J. Chwastowski