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Despite the significant progress achieved by diffractive optical networks in diverse computing tasks, such as mode multiplexing and demultiplexing, investigations into the physical meanings behind complex diffractive networks at the layer…

Diffractive optical networks provide rich opportunities for visual computing tasks since the spatial information of a scene can be directly accessed by a diffractive processor without requiring any digital pre-processing steps. Here we…

Optics · Physics 2023-04-28 Bijie Bai , Heming Wei , Xilin Yang , Deniz Mengu , Aydogan Ozcan

By approximating posterior distributions with weighted samples, particle filters (PFs) provide an efficient mechanism for solving non-linear sequential state estimation problems. While the effectiveness of particle filters has been…

Machine Learning · Computer Science 2023-12-15 Xiongjie Chen , Yunpeng Li

Optical tweezers exploit light--matter interactions to trap particles ranging from single atoms to micrometer-sized eukaryotic cells. For this reason, optical tweezers are a ubiquitous tool in physics, biology, and nanotechnology. Recently,…

Deep Learning has pushed the limits of what was possible in the domain of Digital Image Processing. However, that is not to say that the traditional computer vision techniques which had been undergoing progressive development in years prior…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Niall O' Mahony , Sean Campbell , Anderson Carvalho , Suman Harapanahalli , Gustavo Velasco-Hernandez , Lenka Krpalkova , Daniel Riordan , Joseph Walsh

Optical neural networks present distinct advantages over traditional electrical counterparts, such as accelerated data processing and reduced energy consumption. While coherent light is conventionally employed in optical neural networks,…

Optics · Physics 2025-07-15 Jianwei Qin , Yanbing Liu , Yan Liu , Xun Liu , Wei Li , Fangwei Ye

Research in photonic computing has flourished due to the proliferation of optoelectronic components on photonic integration platforms. Photonic integrated circuits have enabled ultrafast artificial neural networks, providing a framework for…

The achievable information rates of optical communication networks have been widely increased over the past four decades with the introduction and development of optical amplifiers, coherent detection, advanced modulation formats, and…

Information Theory · Computer Science 2017-05-16 Tianhua Xu

The operations used for neural network computation map favorably onto simple analog circuits, which outshine their digital counterparts in terms of compactness and efficiency. Nevertheless, such implementations have been largely supplanted…

Neural and Evolutionary Computing · Computer Science 2020-02-24 Jonathan Binas , Daniel Neil , Giacomo Indiveri , Shih-Chii Liu , Michael Pfeiffer

Neuromorphic computing-modelled after the functionality and efficiency of biological neural systems-offers promising new directions for advancing artificial intelligence and computational models. Photonic techniques for neuromorphic…

Under spatially-coherent light, a diffractive optical network composed of structured surfaces can be designed to perform any arbitrary complex-valued linear transformation between its input and output fields-of-view (FOVs) if the total…

Optics · Physics 2023-08-17 Md Sadman Sakib Rahman , Xilin Yang , Jingxi Li , Bijie Bai , Aydogan Ozcan

Recent advancements in deep learning techniques have spurred considerable interest in their application to hyperspectral imagery processing. This paper provides a comprehensive review of the latest developments in this field, focusing on…

Image and Video Processing · Electrical Eng. & Systems 2024-04-11 Nafiseh Ghasemi , Jon Alvarez Justo , Marco Celesti , Laurent Despoisse , Jens Nieke

Deep neural networks (DNNs) are increasingly proposed as models of human vision, bolstered by their impressive performance on image classification and object recognition tasks. Yet, the extent to which DNNs capture fundamental aspects of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Ethan O. Nadler , Elise Darragh-Ford , Bhargav Srinivasa Desikan , Christian Conaway , Mark Chu , Tasker Hull , Douglas Guilbeault

Adaptive optics can be used to mitigate the effects of atmospheric turbulence on imaging systems, but the correction is only partial, and deconvolution is often required to improve the resolution. This results in entire optical/digital…

Instrumentation and Methods for Astrophysics · Physics 2026-02-09 Florian Cheyssial , Laurent Mugnier , Cyril Petit

With an ever-growing number of parameters defining increasingly complex networks, Deep Learning has led to several breakthroughs surpassing human performance. As a result, data movement for these millions of model parameters causes a…

Neural and Evolutionary Computing · Computer Science 2023-04-12 Christopher Wolters , Brady Taylor , Edward Hanson , Xiaoxuan Yang , Ulf Schlichtmann , Yiran Chen

Diffractive optical neural networks (DONNs) have attracted lots of attention as they bring significant advantages in terms of power efficiency, parallelism, and computational speed compared with conventional deep neural networks (DNNs),…

Artificial Intelligence · Computer Science 2022-09-29 Yingjie Li , Ruiyang Chen , Weilu Gao , Cunxi Yu

The increasing rise in machine learning and deep learning applications is requiring ever more computational resources to successfully meet the growing demands of an always-connected, automated world. Neuromorphic technologies based on…

Neural and Evolutionary Computing · Computer Science 2020-07-14 Philippe Reiter , Geet Rose Jose , Spyridon Bizmpikis , Ionela-Ancuţa Cîrjilă

We present a broadband and polarization-insensitive unidirectional imager that operates at the visible part of the spectrum, where image formation occurs in one direction while in the opposite direction, it is blocked. This approach is…

Artificial neural networks have advanced the frontiers of reversible steganography. The core strength of neural networks is the ability to render accurate predictions for a bewildering variety of data. Residual modulation is recognised as…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Ching-Chun Chang , Xu Wang , Sisheng Chen , Hitoshi Kiya , Isao Echizen

Including information from additional spectral bands (e.g., near-infrared) can improve deep learning model performance for many vision-oriented tasks. There are many possible ways to incorporate this additional information into a deep…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Charles Godfrey , Elise Bishoff , Myles McKay , Eleanor Byler