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Purpose: To develop a deep learning approach to digitally-stain optical coherence tomography (OCT) images of the optic nerve head (ONH). Methods: A horizontal B-scan was acquired through the center of the ONH using OCT (Spectralis) for 1…

With the recent advances in optical phase change material (PCM), photonic in-memory neurocomputing has demonstrated its superiority in optical neural network (ONN) designs with near-zero static power consumption, time-of-light latency, and…

Emerging Technologies · Computer Science 2021-12-17 Hanqing Zhu , Jiaqi Gu , Chenghao Feng , Mingjie Liu , Zixuan Jiang , Ray T. Chen , David Z. Pan

Optical Diffraction Neural Networks (DNNs), a subset of Optical Neural Networks (ONNs), show promise in mirroring the prowess of electronic networks. This study introduces the Hybrid Diffraction Neural Network (HDNN), a novel architecture…

Recently, there are increasing efforts on advancing optical neural networks (ONNs), which bring significant advantages for machine learning (ML) in terms of power efficiency, parallelism, and computational speed. With the considerable…

Machine Learning · Computer Science 2023-05-03 Yingjie Li , Weilu Gao , Cunxi Yu

As deep neural networks (DNNs) grow to solve increasingly complex problems, they are becoming limited by the latency and power consumption of existing digital processors. For improved speed and energy efficiency, specialized analog optical…

Emerging Technologies · Computer Science 2022-06-24 Liane Bernstein , Alexander Sludds , Christopher Panuski , Sivan Trajtenberg-Mills , Ryan Hamerly , Dirk Englund

Opto-electronic computing combines the complementary strengths of photonics and electronics to deliver ultrahigh computational throughput with high energy efficiency. However, its practical deployment for real-world applications has been…

Optical machine learning offers advantages in terms of power efficiency, scalability and computation speed. Recently, an optical machine learning method based on Diffractive Deep Neural Networks (D2NNs) has been introduced to execute a…

Neural and Evolutionary Computing · Computer Science 2019-06-11 Deniz Mengu , Yi Luo , Yair Rivenson , Aydogan Ozcan

Optical imaging is commonly used for both scientific and technological applications across industry and academia. In image sensing, a measurement, such as of an object's position, is performed by computational analysis of a digitized image.…

Eye tracking for wearable systems demands low latency and milliwatt-level power, but conventional frame-based pipelines struggle with motion blur, high compute cost, and limited temporal resolution. Such capabilities are vital for enabling…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Paul Hueber , Luca Peres , Florian Pitters , Alejandro Gloriani , Oliver Rhodes

Photonic computing promises ultrafast and energy-efficient artificial intelligence. However, existing photonic neural networks (PNNs) remain functionally shallow and difficult to scale. Here we establish a theory-guided framework showing…

Optics · Physics 2026-02-25 Yuxin Sun , Chun Gao , Jin Xie , Pan Wang , Zejie Yu , Yiwei Xie , Huan Li , Daoxin Dai

Advances in deep neural networks (DNNs) are transforming science and technology. However, the increasing computational demands of the most powerful DNNs limit deployment on low-power devices, such as smartphones and sensors -- and this…

Real-time object detection on energy-constrained platforms is critical for applications such as UAV-based inspection, autonomous navigation, and mobile robotics. Spiking neural networks (SNNs) on neuromorphic hardware are believed to be…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Udayanga G. W. K. N. Gamage , Yan Zeng , Cesar Cadena , Matteo Fumagalli , Silvia Tolu

This paper addresses the limitations in Optical Neural Networks (ONNs) related to training efficiency, nonlinear function implementation, and large input data processing. We introduce Two-Pass Forward Propagation, a novel training method…

Machine Learning · Computer Science 2024-08-19 Amirreza Ahmadnejad , Somayyeh Koohi

The field of neuromorphic computing promises extremely low-power and low-latency sensing and processing. Challenges in transferring learning algorithms from traditional artificial neural networks (ANNs) to spiking neural networks (SNNs)…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Jesse Hagenaars , Federico Paredes-Vallés , Guido de Croon

Although spiking neural networks (SNNs) take benefits from the bio-plausible neural modeling, the low accuracy under the common local synaptic plasticity learning rules limits their application in many practical tasks. Recently, an emerging…

Neural and Evolutionary Computing · Computer Science 2021-07-27 Ling Liang , Zheng Qu , Zhaodong Chen , Fengbin Tu , Yujie Wu , Lei Deng , Guoqi Li , Peng Li , Yuan Xie

Convolutional Neural Networks (CNNs) have recently become a favored technique for image denoising due to its adaptive learning ability, especially with a deep configuration. However, their efficacy is inherently limited owing to their…

Image and Video Processing · Electrical Eng. & Systems 2020-09-03 Junaid Malik , Serkan Kiranyaz , Moncef Gabbouj

We introduce an all-optical Diffractive Deep Neural Network (D2NN) architecture that can learn to implement various functions after deep learning-based design of passive diffractive layers that work collectively. We experimentally…

Neural and Evolutionary Computing · Computer Science 2018-09-26 Xing Lin , Yair Rivenson , Nezih T. Yardimci , Muhammed Veli , Mona Jarrahi , Aydogan Ozcan

Low-bit quantization emerges as one of the most promising compression approaches for deploying deep neural networks on edge devices. Mixed-precision quantization leverages a mixture of bit-widths to unleash the accuracy and efficiency…

Machine Learning · Computer Science 2024-05-24 Wei Huang , Haotong Qin , Yangdong Liu , Jingzhuo Liang , Yulun Zhang , Ying Li , Xianglong Liu

DONNs leverage light propagation for efficient analog AI and signal processing. Advances in nanophotonic fabrication and metasurface-based wavefront engineering have opened new pathways to realize high-capacity DONNs across various spectral…

The ever-increasing data demand craves advancements in high-speed and energy-efficient computing hardware. Analog optical neural network (ONN) processors have emerged as a promising solution, offering benefits in bandwidth and energy…

Optics · Physics 2026-04-07 Chao Luan , Ronald Davis , Zaijun Chen , Dirk Englund , Ryan Hamerly