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The massively parallel nature of biological information processing plays an important role for its superiority to human-engineered computing devices. In particular, it may hold the key to overcoming the von Neumann bottleneck that limits…

Deconvolution microscopy has been extensively used to improve the resolution of the wide-field fluorescent microscopy, but the performance of classical approaches critically depends on the accuracy of a model and optimization algorithms.…

Image and Video Processing · Electrical Eng. & Systems 2020-07-09 Sungjun Lim , Hyoungjun Park , Sang-Eun Lee , Sunghoe Chang , Jong Chul Ye

Spiking Neural Networks (SNNs) that operate in an event-driven manner and employ binary spike representation have recently emerged as promising candidates for energy-efficient computing. However, a cost bottleneck arises in obtaining…

Neural and Evolutionary Computing · Computer Science 2024-01-22 Yunpeng Yao , Man Wu , Zheng Chen , Renyuan Zhang

An optical flow gradient algorithm was applied to spontaneously forming net- works of neurons and glia in culture imaged by fluorescence optical microscopy in order to map functional calcium signaling with single pixel resolution. Optical…

Computational Engineering, Finance, and Science · Computer Science 2010-01-22 Marius Buibas , Diana Yu , Krystal Nizar , Gabriel A. Silva

We have presented a Spiking Convolutional Neural Network (SCNN) that incorporates retinal foveal-pit inspired Difference of Gaussian filters and rank-order encoding. The model is trained using a variant of the backpropagation algorithm…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Shriya T. P. Gupta , Basabdatta Sen Bhattacharya

In this work, a novel high-speed railway fastener detector is introduced. This fully convolutional network, dubbed FasteNet, foregoes the notion of bounding boxes and performs detection directly on a predicted saliency map. Fastenet uses…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Jun Jet Tai , Mauro S. Innocente , Owais Mehmood

Neuromorphic vision sensors, such as the dynamic vision sensor (DVS) and spike camera, have gained increasing attention in recent years. The spike camera can detect fine textures by mimicking the fovea in the human visual system, and output…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Wei Zhang , Weiquan Yan , Yun Zhao , Wenxiang Cheng , Gang Chen , Huihui Zhou , Yonghong Tian

Image decomposition is a crucial subject in the field of image processing. It can extract salient features from the source image. We propose a new image decomposition method based on convolutional neural network. This method can be applied…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Yu Fu , Xiao-Jun Wu , Josef Kittler

The robust estimation of dynamically changing features, such as the position of prey, is one of the hallmarks of perception. On an abstract, algorithmic level, nonlinear Bayesian filtering, i.e. the estimation of temporally changing signals…

Neurons and Cognition · Quantitative Biology 2022-01-05 Anna Kutschireiter , Simone Carlo Surace , Henning Sprekeler , Jean-Pascal Pfister

Owing to their significant advantages in terms of bandwidth, power efficiency, and latency, optical neuromorphic systems have arisen as interesting alternatives to digital electronic devices. Recently, photonic crystal nanolasers with…

Optics · Physics 2025-12-09 Ivan K. Boikov , Alfredo de Rossi , Mihai A. Petrovici

Background: In neurophysiological data, latency refers to a global shift of spikes from one spike train to the next, either caused by response onset fluctuations or by finite propagation speed. Such systematic shifts in spike timing lead to…

We report experimentally and in theory on the detection of edge information in digital images using ultrafast spiking optical artificial neurons towards convolutional neural networks (CNNs). In tandem with traditional convolution…

Image and Video Processing · Electrical Eng. & Systems 2020-07-21 Joshua Robertson , Yahui Zhang , Matej Hejda , Andrew Adair , Julian Bueno , Shuiying Xiang , Antonio Hurtado

Invasive cortical brain-machine interfaces (BMIs) can significantly improve the life quality of motor-impaired patients. Nonetheless, externally mounted pedestals pose an infection risk, which calls for fully implanted systems. Such…

Neurons and Cognition · Quantitative Biology 2024-09-04 Tengjun Liu , Julia Gygax , Julian Rossbroich , Yansong Chua , Shaomin Zhang , Friedemann Zenke

This article contains two main theoretical results on neural spike train models. The first assumes that the spike train is modeled as a counting or point process on the real line where the conditional intensity function is a product of a…

Statistics Theory · Mathematics 2007-06-13 Hock Peng Chan , Wei-Liem Loh

The high biological properties and low energy consumption of Spiking Neural Networks (SNNs) have brought much attention in recent years. However, the converted SNNs generally need large time steps to achieve satisfactory performance, which…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Nemin Qiu , Zhiguo Li , Yuan Li , Chuang Zhu

Calcium imaging is one of the most important tools in neurophysiology as it enables the observation of neuronal activity for hundreds of cells in parallel and at single-cell resolution. In order to use the data gained with calcium imaging,…

Neurons and Cognition · Quantitative Biology 2020-04-07 Elke Kirschbaum , Alberto Bailoni , Fred A. Hamprecht

Reliable analysis of intracellular dynamic processes in time-lapse fluorescence microscopy images requires complete and accurate tracking of all small particles in all time frames of the image sequences. A fundamental first step towards…

Image and Video Processing · Electrical Eng. & Systems 2024-08-16 Yao Yao , Ihor Smal , Ilya Grigoriev , Anna Akhmanova , Erik Meijering

The release of large datasets and developments in AI have led to dramatic improvements in decoding methods that reconstruct seen images from human brain activity. We evaluate the prospect of further improving recent decoding methods by…

Neurons and Cognition · Quantitative Biology 2023-12-14 Reese Kneeland , Jordyn Ojeda , Ghislain St-Yves , Thomas Naselaris

Fitting network models to neural activity is an important tool in neuroscience. A popular approach is to model a brain area with a probabilistic recurrent spiking network whose parameters maximize the likelihood of the recorded activity.…

Machine Learning · Statistics 2021-11-16 Guillaume Bellec , Shuqi Wang , Alireza Modirshanechi , Johanni Brea , Wulfram Gerstner

Correlated photon pairs, carrying strong quantum correlations, have been harnessed to bring quantum advantages to various fields from biological imaging to range finding. Such inherent non-classical properties support extracting more valid…

Quantum Physics · Physics 2020-06-18 Zhan-Ming Li , Shi-Bao Wu , Jun Gao , Heng Zhou , Zeng-Quan Yan , Ruo-Jing Ren , Si-Yuan Yin , Xian-Min Jin